CN113411147B - Flatness measuring and calibrating method for millimeter wave wireless channel simulation system - Google Patents
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Abstract
本发明涉及一种用于毫米波无线信道仿真系统中的平坦度测量和校准方法，属于无线通信技术领域；包括以下步骤：S1：将毫米波无线信道仿真系统分为下变频单元、基带处理单元、上变频单元三个待测试子系统；S2：提供一网络分析仪，连接所述网络分析仪的TX和RX，用网络分析仪自校准功能将其自身的平坦度校准好，并将已校准好的所述网络分析仪与所述下变频单元连接等。提出的毫米波平坦度测量和校准方法具有测试效率高、测试成本低、准确度高、方法灵活简单、可实现自动化测试、工程实现方便等其他方法无法比拟的优点。且该方法还可用于其他应用场合的平坦度校准。
The invention relates to a flatness measurement and calibration method used in a millimeter-wave wireless channel emulation system, belonging to the technical field of wireless communication; comprising the following steps: S1: dividing the millimeter-wave wireless channel emulation system into a down-conversion unit and a baseband processing unit , Three subsystems to be tested of the up-conversion unit; S2: Provide a network analyzer, connect the TX and RX of the network analyzer, use the network analyzer self-calibration function to calibrate its own flatness, and calibrate the calibrated Well, the network analyzer is connected to the down-conversion unit, etc. The proposed millimeter wave flatness measurement and calibration method has the advantages of high test efficiency, low test cost, high accuracy, flexible and simple method, automatic test, and easy engineering implementation. And this method can also be used for flatness calibration in other applications.
Description
技术领域technical field
本发明属于无线通信技术领域，具体涉及用于毫米波无线信道仿真系统中的平坦度测量和校准方法。The invention belongs to the technical field of wireless communication, and in particular relates to a flatness measurement and calibration method used in a millimeter wave wireless channel emulation system.
背景技术Background technique
带内平坦度指标一直被用来作为衡量发射链路中线性失真的重要指标。这是因为不管是整个发射链路中各个器件之间连接的阻抗不匹配，还是各级模拟滤波器和各级模拟衰减放大器、模拟滤波器电路的频率选择性，都是影响输出信号带内平坦度的直接因素，特别是对毫米波这种大带宽、高频率信号影响尤为明显。毫米波Massive MIMO无线信道仿真仪系统架构如图1所示：主要是由下变频单元、基带处理单元、上变频器单元三大子系统组成。对于毫米波Massive MIMO无线信道仿真仪这种多天线、大带宽、多载频、多入多出系统，受限于模拟衰减器、模拟滤波器、模拟混频器等元件的阻抗不匹配、元件平坦度低、一致性差等因素影响，各个宽带子系统的平坦度、一致性都较差。由于MIMO系统多入多出的特性，一般对该系统的平坦度测量和校准都是单独对该系统的各下变频单元、基带处理单元、各上变频单元单独测量和校准。The in-band flatness index has been used as an important index to measure the linear distortion in the transmit chain. This is because the in-band flatness of the output signal is affected whether it is the impedance mismatch between the various devices in the entire transmitting chain, or the frequency selectivity of the analog filters at all levels, the analog attenuating amplifiers at all levels, and the analog filter circuits. It is a direct factor of high frequency, especially for the large-bandwidth and high-frequency signals such as millimeter waves. The system architecture of the millimeter-wave Massive MIMO wireless channel emulator is shown in Figure 1: it is mainly composed of three subsystems: down-conversion unit, baseband processing unit, and up-converter unit. For the multi-antenna, large-bandwidth, multi-carrier, multi-input and multi-output system of the millimeter-wave Massive MIMO wireless channel emulator, it is limited by the impedance mismatch of components such as analog attenuators, analog filters, and analog mixers. Affected by factors such as low flatness and poor consistency, the flatness and consistency of each broadband subsystem are poor. Due to the multi-input and multi-output characteristics of a MIMO system, the flatness measurement and calibration of the system are generally measured and calibrated individually for each down-conversion unit, baseband processing unit, and each up-conversion unit of the system.
传统方法对毫米波Massive MIMO无线信道仿真仪平坦度测量流程主要有两种：1)采用信号源发射单一频率的正弦波信号在待测试的宽带子系统内逐一进行多次测量和标定，利用多次测量的结果绘制实际物理带宽拟合曲线，以此曲线为基础确定待测试的子系统的原始平坦度参数，用此参数来来完成该子系统平坦度校准补偿流程。为了更逼近宽带系统原始真实的平坦度曲线，一般需要十几次甚至几十次的发射、标定、记录等流程来积累该子系统原始的平坦度响应特性，最后再对基带单元各个子系统进行补偿。这种方法得出的曲线相对来说比较接近真实曲线，但当毫米波Massive MIMO无线信道仿真仪系统天线数量增加、测试频点增多，该方法需要反复迭代测试次数就会呈指数型增高，会严重影响测试效率。2)另一种是基于FFT的带宽平坦度校准方法，该方法主要是用软件生成一定带宽、平坦度已知的基准频率f0,f1,f2…fN，再用IFFT生成时域信号t(x)，并用该t(x)导入到任意波形发生器生成t’(x),将该t’(x)发射到待测试子系统，并在待测子系统输出端用频谱仪扫频读出待测试系统的平坦度数据；这种方法相对上述的方法1)，可以一次性读出待测宽带系统多个频率点的平坦度曲线数据，但该方法要求宽带波形发生器、宽带频谱仪和测试线缆要有极高的平坦度指标，但目前市面上的宽带波形发生器和频谱仪的平坦度指标都不太好，且波形发生器和频谱仪结组成的标准测试设备的平坦度还不能自我修复补偿，因此该方法得出的平坦度曲线和真实子系统的平坦度曲线相差较大，当上述三个子系统的平坦度曲线经过补偿并叠加后甚至会恶化整个系统的平坦度指标。There are two main methods to measure the flatness of the millimeter-wave Massive MIMO wireless channel emulator by traditional methods: 1) The signal source is used to transmit a single-frequency sine wave signal, and multiple measurements and calibrations are performed one by one in the broadband subsystem to be tested. The actual physical bandwidth fitting curve is drawn from the result of the second measurement, and the original flatness parameter of the subsystem to be tested is determined based on this curve, and this parameter is used to complete the flatness calibration and compensation process of the subsystem. In order to more closely approximate the original and true flatness curve of the broadband system, it generally takes a dozen or even dozens of transmissions, calibrations, recordings and other processes to accumulate the original flatness response characteristics of the subsystem. compensate. The curve obtained by this method is relatively close to the real curve, but when the number of antennas in the millimeter-wave Massive MIMO wireless channel emulator system increases and the number of test frequency points increases, the number of repeated iterations of this method will increase exponentially. Seriously affect the test efficiency. 2) The other is the FFT - based bandwidth flatness calibration method. This method mainly uses software to generate reference frequencies f 0 , f 1 , f 2 . . . Signal t(x), and use this t(x) to import it into the arbitrary waveform generator to generate t'(x), transmit this t'(x) to the subsystem under test, and use the spectrum analyzer at the output end of the subsystem under test Sweep the frequency to read out the flatness data of the system to be tested; this method can read out the flatness curve data of multiple frequency points of the wideband system to be tested at one time, but this method requires a wideband waveform generator, Broadband spectrum analyzers and test cables must have extremely high flatness indicators, but the flatness indicators of broadband waveform generators and spectrum analyzers currently on the market are not very good, and the standard test equipment composed of waveform generators and spectrum analyzers Therefore, the flatness curve obtained by this method is quite different from the flatness curve of the real subsystem. When the flatness curves of the above three subsystems are compensated and superimposed, it will even deteriorate the overall system. Flatness indicator.
因此,现阶段需设计用于毫米波无线信道仿真系统中的平坦度测量和校准方法,来解决以上问题。Therefore, at this stage, it is necessary to design a flatness measurement and calibration method for the millimeter-wave wireless channel simulation system to solve the above problems.
发明内容SUMMARY OF THE INVENTION
本发明目的在于提供用于毫米波无线信道仿真系统中的平坦度测量和校准方法，用于解决上述现有技术中存在的技术问题。The purpose of the present invention is to provide a flatness measurement and calibration method used in a millimeter wave wireless channel emulation system, so as to solve the technical problems existing in the above-mentioned prior art.
为实现上述目的，本发明的技术方案是：For achieving the above object, the technical scheme of the present invention is:
用于毫米波无线信道仿真系统中的平坦度测量和校准方法，包括以下步骤：A flatness measurement and calibration method used in a millimeter-wave wireless channel emulation system, including the following steps:
S1：将毫米波无线信道仿真系统分为下变频单元、基带处理单元、上变频单元三个待测试子系统；S1: Divide the millimeter-wave wireless channel emulation system into three sub-systems to be tested: down-conversion unit, baseband processing unit, and up-conversion unit;
S2：提供一网络分析仪，连接所述网络分析仪的TX和RX，用网络分析仪自校准功能将其自身的平坦度校准好，并将已校准好的所述网络分析仪与所述下变频单元连接；S2: Provide a network analyzer, connect the TX and RX of the network analyzer, use the network analyzer self-calibration function to calibrate its own flatness, and connect the calibrated network analyzer with the lower Frequency conversion unit connection;
S3：用程控指令设置好待测试的所述下变频单元和所述网络分析仪的参数，并用程控指令从所述网络分析仪中一次性将所述下变频单元的平坦度曲线数据读出，得到一定长度的所述下变频单元的平坦度相应曲线s0(f0)；S3: Set the parameters of the down-conversion unit to be tested and the network analyzer with a program-controlled instruction, and read out the flatness curve data of the down-conversion unit from the network analyzer at one time with a program-controlled instruction, obtaining a corresponding curve s 0 (f 0 ) of the flatness of the down-conversion unit of a certain length;
S4：将步骤S2中的下变频单元分别换成基带处理单元和上变频单元，并执行步骤S2和S3，分别得到所述基带处理单元和所述上变频单元的相应曲线s1(f0)和s2(f0)；S4: Replace the down-conversion unit in step S2 with a baseband processing unit and an up-conversion unit respectively, and execute steps S2 and S3 to obtain corresponding curves s 1 (f 0 ) of the baseband processing unit and the up-conversion unit respectively and s 2 (f 0 );
S5：分别取曲线s0(f0)、s1(f0)、s2(f0)的中间点p0(n/2)、p1(n/2)、p2(n/2)作为对应平坦度曲线的参考点，则，补偿的该平坦度的曲线分别为：S5: Take the intermediate points p 0 (n/2), p 1 (n/2), p 2 (n/2) of the curves s 0 (f 0 ), s 1 (f 0 ), and s 2 (f 0 ), respectively ) as the reference point of the corresponding flatness curve, then the compensated flatness curves are:
s’0(f0)＝p0(n/2)-s0(f0) (1)s' 0 (f 0 )=p 0 (n/2)-s 0 (f 0 ) (1)
s’1(f0)＝p1(n/2)-s1(f0) (2)s' 1 (f 0 )=p 1 (n/2)-s 1 (f 0 ) (2)
s’2(f0)＝p2(n/2)-s2(f0) (3)s' 2 (f 0 )=p 2 (n/2)-s 2 (f 0 ) (3)
并将(2)式和(3)式曲线叠加，得到新曲线为：And superimpose the curves of equation (2) and equation (3) to obtain a new curve:
s’12(f0)＝s’1(f0)+s’2(f0) (4)；s' 12 (f 0 )=s' 1 (f 0 )+s' 2 (f 0 ) (4);
S6：将s’0(f0)和s’12(f0)分别作为毫米波无线信道仿真仪的输入端和输出端的平坦度响应曲线，用Parks-McClellan算法在上位机设计该曲线幅度响应复数滤波器系数，其复数滤波器系数分别为h01(f0)和h02(f0)；S6: Take s' 0 (f 0 ) and s' 12 (f 0 ) as the flatness response curve of the input end and output end of the millimeter-wave wireless channel emulator respectively, and use the Parks-McClellan algorithm to design the amplitude response of the curve on the host computer Complex filter coefficients, the complex filter coefficients are respectively h 01 (f 0 ) and h 02 (f 0 );
S7：重复上述步骤S1到步骤S6，得到各个待测试子系统的平坦度补偿滤波器系数hn(fn)；S7: Repeat the above steps S1 to S6 to obtain the flatness compensation filter coefficients h n (f n ) of each subsystem to be tested;
S8：在基带处理单元各输入和输出端分别设计一个复数滤波器，并将上述生成的滤波器系数hn(fn)导入到该滤波器，使其和输入复数信号进行复数卷积，以完成毫米波无线信道仿真系统的平坦度补偿。S8: Design a complex filter at each input and output of the baseband processing unit respectively, and import the filter coefficients h n (f n ) generated above into the filter to perform complex convolution with the input complex signal to obtain Complete the flatness compensation of the millimeter wave wireless channel simulation system.
进一步的，步骤S3中，用程控指令设置好待测试的所述下变频单元和所述网络分析仪的参数，该参数包括频点、带宽、模式和功率。Further, in step S3, the parameters of the down-conversion unit and the network analyzer to be tested are set by program control instructions, and the parameters include frequency, bandwidth, mode and power.
进一步的，步骤S7中，得到各个待测试子系统的平坦度补偿滤波器系数hn(fn)，具体包括各个待测试子系统其他端口、其他载频的平坦度补偿滤波器系数hn(fn)。Further, in step S7, the flatness compensation filter coefficient h n (f n ) of each subsystem to be tested is obtained, and the flatness compensation filter coefficient h n ( fn ).
进一步的，步骤S2的网络分析仪自校准过程中，还包括网络分析仪自校准检验步骤，具体如下：Further, the network analyzer self-calibration process in step S2 also includes a network analyzer self-calibration check step, which is as follows:
S21：将所述网络分析仪的首次自校准信息作为基准自校准信息；S21: Use the first self-calibration information of the network analyzer as the reference self-calibration information;
S22：首次自校准完成后，继续进行N次自校准(N为预设自校准次数)，并获取相应的实时自校准信息；S22: After the first self-calibration is completed, continue to perform N times of self-calibration (N is the preset number of self-calibrations), and obtain corresponding real-time self-calibration information;
S23：将所述实时自校准信息与所述基准自校准信息进行N次识别判断，若N次识别判断中均为所述实时自校准信息与所述基准自校准信息符合，则判定网络分析仪自校准检验通过，否则，判定网络分析仪自校准检验不通过，进行网络分析仪自校准检验异常报警。S23: Perform N identification judgments on the real-time self-calibration information and the benchmark self-calibration information. If the real-time self-calibration information and the benchmark self-calibration information are consistent with the real-time self-calibration information in the N identifications and judgments, determine that the network analyzer is If the self-calibration test passes, otherwise, it is determined that the network analyzer self-calibration test fails, and the network analyzer self-calibration test is abnormally alarmed.
进一步的，当网络分析仪自校准检验异常报警时；Further, when the network analyzer self-calibration check abnormal alarm;
提供一TX发送检测装置、一RX接收检测装置；Provide a TX transmission detection device and a RX reception detection device;
所述TX发送检测装置用于检测所述网络分析仪的TX发送端的发送信号是否为阈值发送信号；The TX transmission detection device is used to detect whether the transmission signal of the TX transmission end of the network analyzer is a threshold transmission signal;
所述RX接收检测装置用于检测所述网络分析仪的RX接收端的接收信号是否为阈值发送信号；The RX receiving detection device is used to detect whether the received signal of the RX receiving end of the network analyzer is a threshold transmission signal;
若所述TX发送检测装置检测到所述网络分析仪的TX发送端的发送信号非阈值发送信号，则判定所述网络分析仪的TX发送端故障；If the TX transmission detection device detects that the transmission signal of the TX transmission end of the network analyzer is not a threshold transmission signal, it is determined that the TX transmission end of the network analyzer is faulty;
若所述TX发送检测装置检测到所述网络分析仪的TX发送端的发送信号是阈值发送信号，所述RX接收检测装置检测到所述网络分析仪的RX接收端的接收信号非阈值发送信号，则判定所述网络分析仪的TX发送端与RX接收端之间的连接线路故障；If the TX transmission detection device detects that the transmission signal of the TX transmission end of the network analyzer is a threshold transmission signal, and the RX reception detection device detects that the reception signal of the RX reception end of the network analyzer is not a threshold transmission signal, then Determine that the connection line between the TX sending end and the RX receiving end of the network analyzer is faulty;
若所述TX发送检测装置检测到所述网络分析仪的TX发送端的发送信号是阈值发送信号，所述RX接收检测装置检测到所述网络分析仪的RX接收端的接收信号是阈值发送信号，则判定所述网络分析仪的RX接收端故障。If the TX transmission detection device detects that the transmission signal of the TX transmission end of the network analyzer is a threshold transmission signal, and the RX reception detection device detects that the reception signal of the RX reception end of the network analyzer is a threshold transmission signal, then It is determined that the RX receiving end of the network analyzer is faulty.
进一步的，步骤S2中，当将已校准好的所述网络分析仪与所述下变频单元连接后，若出现所述网络分析仪与所述下变频单元运行故障；则，Further, in step S2, after the calibrated network analyzer is connected to the down-conversion unit, if there is a malfunction of the network analyzer and the down-conversion unit; then,
提供一下变频输出检测装置、一下变频输入检测装置；Provide a lower frequency conversion output detection device and a lower frequency conversion input detection device;
所述下变频输出检测装置用于检测所述下变频单元输出端的实时输出信号是否符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号；The down-conversion output detection device is used to detect whether the real-time output signal of the output of the down-conversion unit conforms to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system;
所述下变频输入检测装置用于检测所述下变频单元输入端的实时输入信号是否符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输入信号；The down-conversion input detection device is used to detect whether the real-time input signal at the input end of the down-conversion unit conforms to the threshold input signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system;
若所述下变频输出检测装置检测到所述下变频单元输出端的实时输出信号不符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号，则判定下变频单元的输出端故障；If the down-conversion output detection device detects that the real-time output signal at the output of the down-conversion unit does not conform to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel emulation system, it is determined that the output of the down-conversion unit is faulty ;
若所述下变频输出检测装置检测到所述下变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号，所述下变频输入检测装置检测到下变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输入信号，则判定下变频单元的输出端与网络分析仪的RX接收端之间的连接线路、或网络分析仪的TX发送端与下变频单元的输入端之间的连接线路故障；If the down-conversion output detection device detects that the real-time output signal at the output end of the down-conversion unit conforms to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel emulation system, the down-conversion input detection device detects that the down-conversion input If the real-time input signal at the input of the frequency conversion unit does not meet the threshold input signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system, then determine the connection between the output end of the down-conversion unit and the RX receiving end of the network analyzer, Or the connection line between the TX sending end of the network analyzer and the input end of the down-conversion unit is faulty;
若所述下变频输出检测装置检测到所述下变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号，所述下变频输入检测装置检测到下变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输入信号，则判定下变频单元的输入端故障。If the down-conversion output detection device detects that the real-time output signal at the output end of the down-conversion unit conforms to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel emulation system, the down-conversion input detection device detects that the down-conversion input If the real-time input signal at the input of the frequency conversion unit does not conform to the threshold input signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system, it is determined that the input end of the down-conversion unit is faulty.
进一步的，步骤S2中，当将已校准好的所述网络分析仪与所述基带处理单元连接后，若出现所述网络分析仪与所述基带处理单元运行故障；则，Further, in step S2, after the calibrated network analyzer is connected to the baseband processing unit, if the network analyzer and the baseband processing unit fail to operate; then,
提供一基带处理输出检测装置、一基带处理输入检测装置；Provide a baseband processing output detection device and a baseband processing input detection device;
所述基带处理输出检测装置用于检测所述基带处理单元输出端的实时输出信号是否符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号；The baseband processing output detection device is used to detect whether the real-time output signal of the output end of the baseband processing unit conforms to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel simulation system;
所述基带处理输入检测装置用于检测所述基带处理单元输入端的实时输入信号是否符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输入信号；The baseband processing input detection device is used to detect whether the real-time input signal at the input end of the baseband processing unit conforms to the threshold input signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel simulation system;
若所述基带处理输出检测装置检测到所述基带处理单元输出端的实时输出信号不符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号，则判定基带处理单元的输出端故障；If the baseband processing output detection device detects that the real-time output signal at the output end of the baseband processing unit does not conform to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, it is determined that the output end of the baseband processing unit is faulty ;
若所述基带处理输出检测装置检测到所述基带处理单元输出端的实时输出信号符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号，所述基带处理输入检测装置检测到基带处理单元输入端的实时输入信号不符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输入信号，则判定基带处理单元的输出端与网络分析仪的RX接收端之间的连接线路、或网络分析仪的TX发送端与基带处理单元的输入端之间的连接线路故障；If the baseband processing output detection device detects that the real-time output signal at the output end of the baseband processing unit conforms to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, the baseband processing input detection device detects that the baseband If the real-time input signal at the input end of the processing unit does not meet the threshold input signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, it is determined that the connection line between the output end of the baseband processing unit and the RX receiving end of the network analyzer, Or the connection line between the TX sending end of the network analyzer and the input end of the baseband processing unit is faulty;
若所述基带处理输出检测装置检测到所述基带处理单元输出端的实时输出信号符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号，所述基带处理输入检测装置检测到基带处理单元输入端的实时输入信号不符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输入信号，则判定基带处理单元的输入端故障。If the baseband processing output detection device detects that the real-time output signal at the output end of the baseband processing unit conforms to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, the baseband processing input detection device detects that the baseband If the real-time input signal at the input end of the processing unit does not conform to the threshold input signal within the historical data range of the baseband processing unit of the millimeter wave wireless channel emulation system, it is determined that the input end of the baseband processing unit is faulty.
进一步的，步骤S2中，当将已校准好的所述网络分析仪与所述上变频单元连接后，若出现所述网络分析仪与所述上变频单元运行故障；则，Further, in step S2, after the calibrated network analyzer is connected to the up-conversion unit, if there is a malfunction of the network analyzer and the up-conversion unit; then,
提供一上变频输出检测装置、一上变频输入检测装置；Provide an up-conversion output detection device and an up-conversion input detection device;
所述上变频输出检测装置用于检测所述上变频单元输出端的实时输出信号是否符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号；The up-conversion output detection device is used to detect whether the real-time output signal of the output end of the up-conversion unit conforms to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel simulation system;
所述上变频输入检测装置用于检测所述上变频单元输入端的实时输入信号是否符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输入信号；The up-conversion input detection device is used for detecting whether the real-time input signal at the input end of the up-conversion unit conforms to the threshold input signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel simulation system;
若所述上变频输出检测装置检测到所述上变频单元输出端的实时输出信号不符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号，则判定上变频单元的输出端故障；If the up-conversion output detection device detects that the real-time output signal of the output of the up-conversion unit does not conform to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel emulation system, it is determined that the output of the up-conversion unit is faulty ;
若所述上变频输出检测装置检测到所述上变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号，所述上变频输入检测装置检测到上变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输入信号，则判定上变频单元的输出端与网络分析仪的RX接收端之间的连接线路、或网络分析仪的TX发送端与上变频单元的输入端之间的连接线路故障；If the up-conversion output detection device detects that the real-time output signal at the output of the up-conversion unit conforms to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel emulation system, the up-conversion input detection device detects that the up-conversion input If the real-time input signal at the input end of the frequency conversion unit does not conform to the threshold input signal within the historical data range of the frequency conversion unit of the millimeter wave wireless channel simulation system, it is determined that the connection line between the output end of the frequency conversion unit and the RX receiving end of the network analyzer, Or the connection line between the TX sending end of the network analyzer and the input end of the up-conversion unit is faulty;
若所述上变频输出检测装置检测到所述上变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号，所述上变频输入检测装置检测到上变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输入信号，则判定上变频单元的输入端故障。If the up-conversion output detection device detects that the real-time output signal at the output of the up-conversion unit conforms to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel emulation system, the up-conversion input detection device detects that the up-conversion input If the real-time input signal at the input end of the frequency conversion unit does not conform to the threshold input signal within the historical data range of the frequency conversion unit of the millimeter wave wireless channel simulation system, it is determined that the input end of the frequency conversion unit is faulty.
与现有技术相比，本发明所具有的有益效果为：Compared with the prior art, the present invention has the following beneficial effects:
提出的毫米波平坦度测量和校准方法具有测试效率高、测试成本低、准确度高、方法灵活简单、可实现自动化测试、工程实现方便等其他方法无法比拟的优点。且该方法还可用于其他应用场合的平坦度校准。The proposed millimeter-wave flatness measurement and calibration method has the advantages of high test efficiency, low test cost, high accuracy, flexible and simple method, automatic test, and easy engineering implementation. And this method can also be used for flatness calibration in other applications.
附图说明Description of drawings
图1为本申请的具体实施方式系统构架示意图；1 is a schematic diagram of the system architecture of a specific embodiment of the present application;
图2为本申请的具体实施方式测试连接结构示意图；2 is a schematic diagram of a test connection structure according to a specific embodiment of the application;
图3为本申请的具体实施方式基带平坦度补偿实现结构示意图。FIG. 3 is a schematic structural diagram of the implementation of baseband flatness compensation according to a specific embodiment of the present application.
具体实施方式Detailed ways
下面结合本发明的附图1-3，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings 1-3 of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
实施例：Example:
提供一种用于毫米波无线信道仿真系统中的平坦度测量和校准方法，包括以下步骤：Provided is a flatness measurement and calibration method used in a millimeter wave wireless channel emulation system, comprising the following steps:
S1：如图1所示，将毫米波无线信道仿真系统分为下变频单元、基带处理单元、上变频单元三个待测试子系统；S1: As shown in Figure 1, the millimeter-wave wireless channel emulation system is divided into three sub-systems to be tested: a down-conversion unit, a baseband processing unit, and an up-conversion unit;
S2：提供一网络分析仪，如图2所示，连接所述网络分析仪的TX和RX，用网络分析仪自校准功能将其自身的平坦度校准好，并将已校准好的所述网络分析仪与所述下变频单元连接；S2: Provide a network analyzer, as shown in Figure 2, connect the TX and RX of the network analyzer, use the network analyzer self-calibration function to calibrate its own flatness, and calibrate the calibrated network an analyzer is connected to the down-conversion unit;
S3：用程控指令设置好待测试的所述下变频单元和所述网络分析仪的参数，并用程控指令从所述网络分析仪中一次性将所述下变频单元的平坦度曲线数据读出，得到一定长度的所述下变频单元的平坦度相应曲线s0(f0)；S3: Set the parameters of the down-conversion unit to be tested and the network analyzer with a program-controlled instruction, and read out the flatness curve data of the down-conversion unit from the network analyzer at one time with a program-controlled instruction, obtaining a corresponding curve s 0 (f 0 ) of the flatness of the down-conversion unit of a certain length;
S4：将步骤S2中的下变频单元分别换成基带处理单元和上变频单元，并执行步骤S2和S3，分别得到所述基带处理单元和所述上变频单元的相应曲线s1(f0)和s2(f0)；S4: Replace the down-conversion unit in step S2 with a baseband processing unit and an up-conversion unit respectively, and execute steps S2 and S3 to obtain corresponding curves s 1 (f 0 ) of the baseband processing unit and the up-conversion unit respectively and s 2 (f 0 );
S5：分别取曲线s0(f0)、s1(f0)、s2(f0)的中间点p0(n/2)、p1(n/2)、p2(n/2)作为对应平坦度曲线的参考点，则，补偿的该平坦度的曲线分别为：S5: Take the intermediate points p 0 (n/2), p 1 (n/2), p 2 (n/2) of the curves s 0 (f 0 ), s 1 (f 0 ), and s 2 (f 0 ), respectively ) as the reference point of the corresponding flatness curve, then the compensated flatness curves are:
s’0(f0)＝p0(n/2)-s0(f0) (1)s' 0 (f 0 )=p 0 (n/2)-s 0 (f 0 ) (1)
s’1(f0)＝p1(n/2)-s1(f0) (2)s' 1 (f 0 )=p 1 (n/2)-s 1 (f 0 ) (2)
s’2(f0)＝p2(n/2)-s2(f0) (3)s' 2 (f 0 )=p 2 (n/2)-s 2 (f 0 ) (3)
并将(2)式和(3)式曲线叠加，得到新曲线为：And superimpose the curves of equation (2) and equation (3) to obtain a new curve:
s’12(f0)＝s’1(f0)+s’2(f0) (4)；s' 12 (f 0 )=s' 1 (f 0 )+s' 2 (f 0 ) (4);
S6：将s’0(f0)和s’12(f0)分别作为毫米波无线信道仿真仪的输入端和输出端的平坦度响应曲线，用Parks-McClellan算法在上位机设计该曲线幅度响应复数滤波器系数，其复数滤波器系数分别为h01(f0)和h02(f0)；S6: Take s' 0 (f 0 ) and s' 12 (f 0 ) as the flatness response curve of the input end and output end of the millimeter-wave wireless channel emulator respectively, and use the Parks-McClellan algorithm to design the amplitude response of the curve on the host computer Complex filter coefficients, the complex filter coefficients are respectively h 01 (f 0 ) and h 02 (f 0 );
S7：重复上述步骤S1到步骤S6，得到各个待测试子系统的平坦度补偿滤波器系数hn(fn)；S7: Repeat the above steps S1 to S6 to obtain the flatness compensation filter coefficients h n (f n ) of each subsystem to be tested;
S8：如图3所示，在基带处理单元各输入和输出端分别设计一个复数滤波器，并将上述生成的滤波器系数hn(fn)导入到该滤波器，使其和输入复数信号进行复数卷积，以完成毫米波无线信道仿真系统的平坦度补偿。S8: As shown in Fig. 3, design a complex filter at each input and output end of the baseband processing unit respectively, and import the filter coefficients h n (f n ) generated above into the filter to make it and the input complex signal Perform complex convolution to complete the flatness compensation of the millimeter-wave wireless channel simulation system.
步骤S3中，用程控指令设置好待测试的所述下变频单元和所述网络分析仪的参数，该参数包括频点、带宽、模式和功率。In step S3, the parameters of the down-conversion unit and the network analyzer to be tested are set by the program control instruction, and the parameters include frequency point, bandwidth, mode and power.
步骤S7中，得到各个待测试子系统的平坦度补偿滤波器系数hn(fn)，具体包括各个待测试子系统其他端口、其他载频的平坦度补偿滤波器系数hn(fn)。In step S7, obtain the flatness compensation filter coefficient h n (f n ) of each subsystem to be tested, specifically including the flatness compensation filter coefficients h n (f n ) of other ports and other carrier frequencies of each subsystem to be tested .
上述提出的毫米波平坦度测量和校准方法具有测试效率高、测试成本低、准确度高、方法灵活简单、可实现自动化测试、工程实现方便等其他方法无法比拟的优点。且该方法还可用于其他应用场合的平坦度校准。The above-mentioned millimeter wave flatness measurement and calibration method has the advantages of high test efficiency, low test cost, high accuracy, flexible and simple method, automatic testing, and convenient engineering implementation. And this method can also be used for flatness calibration in other applications.
进一步的，步骤S2的网络分析仪自校准过程中，还包括网络分析仪自校准检验步骤，具体如下：Further, the network analyzer self-calibration process in step S2 also includes a network analyzer self-calibration check step, which is as follows:
S21：将所述网络分析仪的首次自校准信息作为基准自校准信息；S21: Use the first self-calibration information of the network analyzer as the reference self-calibration information;
S22：首次自校准完成后，继续进行N次自校准(N为预设自校准次数)，并获取相应的实时自校准信息；S22: After the first self-calibration is completed, continue to perform N times of self-calibration (N is the preset number of self-calibrations), and obtain corresponding real-time self-calibration information;
S23：将所述实时自校准信息与所述基准自校准信息进行N次识别判断，若N次识别判断中均为所述实时自校准信息与所述基准自校准信息符合，则判定网络分析仪自校准检验通过，否则，判定网络分析仪自校准检验不通过，进行网络分析仪自校准检验异常报警。S23: Perform N identification judgments on the real-time self-calibration information and the benchmark self-calibration information. If the real-time self-calibration information and the benchmark self-calibration information are consistent with the real-time self-calibration information in the N identifications and judgments, determine that the network analyzer is If the self-calibration test passes, otherwise, it is determined that the network analyzer self-calibration test fails, and the network analyzer self-calibration test is abnormally alarmed.
上述方案可避免在网络分析仪自校准误动作的情况下系统继续进行，造成后续的误动作。The above solution can prevent the system from continuing to perform the self-calibration malfunction of the network analyzer, resulting in subsequent malfunctions.
进一步的，当网络分析仪自校准检验异常报警时；Further, when the network analyzer self-calibration check abnormal alarm;
提供一TX发送检测装置、一RX接收检测装置；Provide a TX transmission detection device and a RX reception detection device;
所述TX发送检测装置用于检测所述网络分析仪的TX发送端的发送信号是否为阈值发送信号；The TX transmission detection device is used to detect whether the transmission signal of the TX transmission end of the network analyzer is a threshold transmission signal;
所述RX接收检测装置用于检测所述网络分析仪的RX接收端的接收信号是否为阈值发送信号；The RX receiving detection device is used to detect whether the received signal of the RX receiving end of the network analyzer is a threshold transmission signal;
若所述TX发送检测装置检测到所述网络分析仪的TX发送端的发送信号非阈值发送信号，则判定所述网络分析仪的TX发送端故障；If the TX transmission detection device detects that the transmission signal of the TX transmission end of the network analyzer is not a threshold transmission signal, it is determined that the TX transmission end of the network analyzer is faulty;
若所述TX发送检测装置检测到所述网络分析仪的TX发送端的发送信号是阈值发送信号，所述RX接收检测装置检测到所述网络分析仪的RX接收端的接收信号非阈值发送信号，则判定所述网络分析仪的TX发送端与RX接收端之间的连接线路故障；If the TX transmission detection device detects that the transmission signal of the TX transmission end of the network analyzer is a threshold transmission signal, and the RX reception detection device detects that the reception signal of the RX reception end of the network analyzer is not a threshold transmission signal, then Determine that the connection line between the TX sending end and the RX receiving end of the network analyzer is faulty;
若所述TX发送检测装置检测到所述网络分析仪的TX发送端的发送信号是阈值发送信号，所述RX接收检测装置检测到所述网络分析仪的RX接收端的接收信号是阈值发送信号，则判定所述网络分析仪的RX接收端故障。If the TX transmission detection device detects that the transmission signal of the TX transmission end of the network analyzer is a threshold transmission signal, and the RX reception detection device detects that the reception signal of the RX reception end of the network analyzer is a threshold transmission signal, then It is determined that the RX receiving end of the network analyzer is faulty.
上述方案可对网络分析仪自校准异常进行故障精准定位，便于相关工作人员快速反应维护。The above solution can accurately locate the fault of the abnormal self-calibration of the network analyzer, which is convenient for the relevant staff to quickly respond and maintain.
进一步的，步骤S2中，当将已校准好的所述网络分析仪与所述下变频单元连接后，若出现所述网络分析仪与所述下变频单元运行故障；则，Further, in step S2, after the calibrated network analyzer is connected to the down-conversion unit, if there is a malfunction of the network analyzer and the down-conversion unit; then,
提供一下变频输出检测装置、一下变频输入检测装置；Provide a lower frequency conversion output detection device and a lower frequency conversion input detection device;
所述下变频输出检测装置用于检测所述下变频单元输出端的实时输出信号是否符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号；The down-conversion output detection device is used to detect whether the real-time output signal of the output of the down-conversion unit conforms to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system;
所述下变频输入检测装置用于检测所述下变频单元输入端的实时输入信号是否符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输入信号；The down-conversion input detection device is used to detect whether the real-time input signal at the input end of the down-conversion unit conforms to the threshold input signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system;
若所述下变频输出检测装置检测到所述下变频单元输出端的实时输出信号不符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号，则判定下变频单元的输出端故障；If the down-conversion output detection device detects that the real-time output signal at the output of the down-conversion unit does not conform to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel emulation system, it is determined that the output of the down-conversion unit is faulty ;
若所述下变频输出检测装置检测到所述下变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号，所述下变频输入检测装置检测到下变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输入信号，则判定下变频单元的输出端与网络分析仪的RX接收端之间的连接线路、或网络分析仪的TX发送端与下变频单元的输入端之间的连接线路故障；If the down-conversion output detection device detects that the real-time output signal at the output end of the down-conversion unit conforms to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel emulation system, the down-conversion input detection device detects that the down-conversion input If the real-time input signal at the input of the frequency conversion unit does not meet the threshold input signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system, then determine the connection between the output end of the down-conversion unit and the RX receiving end of the network analyzer, Or the connection line between the TX sending end of the network analyzer and the input end of the down-conversion unit is faulty;
若所述下变频输出检测装置检测到所述下变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输出信号，所述下变频输入检测装置检测到下变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的下变频单元历史数据范围内的阈值输入信号，则判定下变频单元的输入端故障。If the down-conversion output detection device detects that the real-time output signal at the output end of the down-conversion unit conforms to the threshold output signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel emulation system, the down-conversion input detection device detects that the down-conversion input If the real-time input signal at the input of the frequency conversion unit does not conform to the threshold input signal within the historical data range of the down-conversion unit of the millimeter-wave wireless channel simulation system, it is determined that the input end of the down-conversion unit is faulty.
上述方案可对所述网络分析仪与所述下变频单元运行故障进行故障精准定位，便于相关工作人员快速反应维护。The above solution can accurately locate the fault in the operation of the network analyzer and the down-conversion unit, so that the relevant staff can quickly respond and maintain.
进一步的，步骤S2中，当将已校准好的所述网络分析仪与所述基带处理单元连接后，若出现所述网络分析仪与所述基带处理单元运行故障；则，Further, in step S2, after the calibrated network analyzer is connected to the baseband processing unit, if the network analyzer and the baseband processing unit fail to operate; then,
提供一基带处理输出检测装置、一基带处理输入检测装置；Provide a baseband processing output detection device and a baseband processing input detection device;
所述基带处理输出检测装置用于检测所述基带处理单元输出端的实时输出信号是否符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号；The baseband processing output detection device is used to detect whether the real-time output signal of the output end of the baseband processing unit conforms to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel simulation system;
所述基带处理输入检测装置用于检测所述基带处理单元输入端的实时输入信号是否符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输入信号；The baseband processing input detection device is used to detect whether the real-time input signal at the input end of the baseband processing unit conforms to the threshold input signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel simulation system;
若所述基带处理输出检测装置检测到所述基带处理单元输出端的实时输出信号不符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号，则判定基带处理单元的输出端故障；If the baseband processing output detection device detects that the real-time output signal at the output end of the baseband processing unit does not conform to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, it is determined that the output end of the baseband processing unit is faulty ;
若所述基带处理输出检测装置检测到所述基带处理单元输出端的实时输出信号符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号，所述基带处理输入检测装置检测到基带处理单元输入端的实时输入信号不符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输入信号，则判定基带处理单元的输出端与网络分析仪的RX接收端之间的连接线路、或网络分析仪的TX发送端与基带处理单元的输入端之间的连接线路故障；If the baseband processing output detection device detects that the real-time output signal at the output end of the baseband processing unit conforms to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, the baseband processing input detection device detects that the baseband If the real-time input signal at the input end of the processing unit does not meet the threshold input signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, it is determined that the connection line between the output end of the baseband processing unit and the RX receiving end of the network analyzer, Or the connection line between the TX sending end of the network analyzer and the input end of the baseband processing unit is faulty;
若所述基带处理输出检测装置检测到所述基带处理单元输出端的实时输出信号符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输出信号，所述基带处理输入检测装置检测到基带处理单元输入端的实时输入信号不符合毫米波无线信道仿真系统的基带处理单元历史数据范围内的阈值输入信号，则判定基带处理单元的输入端故障。If the baseband processing output detection device detects that the real-time output signal at the output end of the baseband processing unit conforms to the threshold output signal within the historical data range of the baseband processing unit of the millimeter-wave wireless channel emulation system, the baseband processing input detection device detects that the baseband If the real-time input signal at the input end of the processing unit does not conform to the threshold input signal within the historical data range of the baseband processing unit of the millimeter wave wireless channel emulation system, it is determined that the input end of the baseband processing unit is faulty.
上述方案可对所述网络分析仪与所述基带处理单元运行故障进行故障精准定位，便于相关工作人员快速反应维护。The above solution can accurately locate the fault in the operation of the network analyzer and the baseband processing unit, so that the relevant staff can quickly respond and maintain.
进一步的，步骤S2中，当将已校准好的所述网络分析仪与所述上变频单元连接后，若出现所述网络分析仪与所述上变频单元运行故障；则，Further, in step S2, after the calibrated network analyzer is connected to the up-conversion unit, if there is a malfunction of the network analyzer and the up-conversion unit; then,
提供一上变频输出检测装置、一上变频输入检测装置；Provide an up-conversion output detection device and an up-conversion input detection device;
所述上变频输出检测装置用于检测所述上变频单元输出端的实时输出信号是否符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号；The up-conversion output detection device is used to detect whether the real-time output signal of the output end of the up-conversion unit conforms to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel simulation system;
所述上变频输入检测装置用于检测所述上变频单元输入端的实时输入信号是否符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输入信号；The up-conversion input detection device is used for detecting whether the real-time input signal at the input end of the up-conversion unit conforms to the threshold input signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel simulation system;
若所述上变频输出检测装置检测到所述上变频单元输出端的实时输出信号不符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号，则判定上变频单元的输出端故障；If the up-conversion output detection device detects that the real-time output signal of the output of the up-conversion unit does not conform to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel emulation system, it is determined that the output of the up-conversion unit is faulty ;
若所述上变频输出检测装置检测到所述上变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号，所述上变频输入检测装置检测到上变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输入信号，则判定上变频单元的输出端与网络分析仪的RX接收端之间的连接线路、或网络分析仪的TX发送端与上变频单元的输入端之间的连接线路故障；If the up-conversion output detection device detects that the real-time output signal at the output of the up-conversion unit conforms to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel emulation system, the up-conversion input detection device detects that the up-conversion input If the real-time input signal at the input end of the frequency conversion unit does not conform to the threshold input signal within the historical data range of the frequency conversion unit of the millimeter wave wireless channel simulation system, it is determined that the connection line between the output end of the frequency conversion unit and the RX receiving end of the network analyzer, Or the connection line between the TX sending end of the network analyzer and the input end of the up-conversion unit is faulty;
若所述上变频输出检测装置检测到所述上变频单元输出端的实时输出信号符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输出信号，所述上变频输入检测装置检测到上变频单元输入端的实时输入信号不符合毫米波无线信道仿真系统的上变频单元历史数据范围内的阈值输入信号，则判定上变频单元的输入端故障。If the up-conversion output detection device detects that the real-time output signal at the output of the up-conversion unit conforms to the threshold output signal within the historical data range of the up-conversion unit of the millimeter-wave wireless channel emulation system, the up-conversion input detection device detects that the up-conversion input If the real-time input signal at the input end of the frequency conversion unit does not conform to the threshold input signal within the historical data range of the frequency conversion unit of the millimeter wave wireless channel simulation system, it is determined that the input end of the frequency conversion unit is faulty.
上述方案可对所述网络分析仪与所述上变频单元运行故障进行故障精准定位，便于相关工作人员快速反应维护。The above solution can accurately locate the fault in the operation of the network analyzer and the up-conversion unit, so that the relevant staff can quickly respond and maintain.
以上是本发明的较佳实施例，凡依本发明技术方案所作的改变，所产生的功能作用未超出本发明技术方案的范围时，均属于本发明的保护范围。The above are the preferred embodiments of the present invention, all changes made according to the technical solutions of the present invention, when the resulting functional effects do not exceed the scope of the technical solutions of the present invention, belong to the protection scope of the present invention.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685109A (en) * | 2013-10-21 | 2014-03-26 | 京信通信技术(广州)有限公司 | Broadband digital pre-distortion multicarrier power amplification system, and power-amplification gain equalization device and method thereof |
| CN106850474A (en) * | 2017-01-22 | 2017-06-13 | 京信通信技术(广州)有限公司 | Ultra wide band self adaptation oscillation compensation method and system |
| CN110944380A (en) * | 2019-10-30 | 2020-03-31 | 上海无线通信研究中心 | A MIMO parallel channel detection device and method for millimeter wave communication |
| CN111044962A (en) * | 2019-12-26 | 2020-04-21 | 北京航天测控技术有限公司 | Bandwidth flatness calibration method based on FFT |
| CN111308224A (en) * | 2020-02-24 | 2020-06-19 | 山东大学 | Signal flatness compensation method for radio astronomy receiver and radio astronomy receiver |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8842771B2 (en) * | 2012-11-20 | 2014-09-23 | Tektronix, Inc. | Amplitude flatness and phase linearity calibration for RF sources |
| CN106385289A (en) * | 2016-09-12 | 2017-02-08 | 武汉虹信通信技术有限责任公司 | Method and system for improving in-band flatness of network optimization equipment |
| CN110336572B (en) * | 2019-06-11 | 2020-09-15 | 三维通信股份有限公司 | Gain flatness compensation method for transceiver |
-
2021
- 2021-06-28 CN CN202110718962.0A patent/CN113411147B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685109A (en) * | 2013-10-21 | 2014-03-26 | 京信通信技术(广州)有限公司 | Broadband digital pre-distortion multicarrier power amplification system, and power-amplification gain equalization device and method thereof |
| CN106850474A (en) * | 2017-01-22 | 2017-06-13 | 京信通信技术(广州)有限公司 | Ultra wide band self adaptation oscillation compensation method and system |
| CN110944380A (en) * | 2019-10-30 | 2020-03-31 | 上海无线通信研究中心 | A MIMO parallel channel detection device and method for millimeter wave communication |
| CN111044962A (en) * | 2019-12-26 | 2020-04-21 | 北京航天测控技术有限公司 | Bandwidth flatness calibration method based on FFT |
| CN111308224A (en) * | 2020-02-24 | 2020-06-19 | 山东大学 | Signal flatness compensation method for radio astronomy receiver and radio astronomy receiver |
Non-Patent Citations (1)
| Title |
|---|
| 杨彬祺.5G毫米波大规模MIMO收发系统及其关键技术研究.《中国优秀博士学位论文全文数据库 信息科技辑》.2020, * |
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