CN119148084B - Detection method of radar equipment seeker main control oscillator assembly - Google Patents
Detection method of radar equipment seeker main control oscillator assembly Download PDFInfo
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- CN119148084B CN119148084B CN202411605039.6A CN202411605039A CN119148084B CN 119148084 B CN119148084 B CN 119148084B CN 202411605039 A CN202411605039 A CN 202411605039A CN 119148084 B CN119148084 B CN 119148084B
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- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 238000012360 testing method Methods 0.000 claims abstract description 82
- 230000005284 excitation Effects 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000001228 spectrum Methods 0.000 claims description 34
- 230000000630 rising effect Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000010355 oscillation Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 238000010998 test method Methods 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4017—Means for monitoring or calibrating of parts of a radar system of HF systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mathematical Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention belongs to the technical field of radar signal detection, and particularly provides a detection method of a main control oscillator component of a radar equipment seeker. The method is convenient to operate, safe and reliable, breaks through the problem of difficult test of the composite signal technical indexes of the high-frequency component, can simulate the clock signal and the excitation signal of the pilot head, realize the detection of signals such as local oscillation signals, self-checking signals, detection signals, pulse signals and the like in the main control oscillator component of the pilot head, can test the signal indexes completely, determines the technical indexes and the test methods of the sub-component by the method, writes product repair technical rules and repair work cards, and performs achievement solidification on the method of the invention, ensures the positioning of fault components and parts during the detection of the main control oscillator component, and ensures the safety and reliability of the deep repair work of the main control oscillator component.
Description
Technical Field
The invention belongs to the technical field of radar signal detection, and mainly relates to a detection method of a master control oscillator component of a guide head of radar equipment.
Background
The main control oscillator is an important subassembly introduced into the radar equipment seeker, and the main control oscillator mainly plays a role in generating composite signals such as target detection signals, local oscillation signals, doppler frequency signals for target tracking, self-checking signals of the seeker, self-checking signals of parameter automatic adjustment and the like. Because the components generate more signals and the seeker has higher requirements on the generated signal index. In order to comprehensively test signals, ensure the positioning of fault components and parts during the detection of a main control oscillator assembly and ensure the safety and reliability of the deep repair work of the main control oscillator assembly, a detection method of a radar equipment seeker main control oscillator assembly is provided.
Disclosure of Invention
The invention provides a detection method of a main control oscillator component of a radar equipment seeker, which aims to solve the problem of classifying and testing various signal indexes under the condition that a high-frequency component outputs more composite signals.
In order to solve the technical problems, the invention discloses a detection method of a master oscillator component of a guide head of radar equipment, which comprises the following steps of sequentially connecting an excitation unit, a switching unit and a measuring unit with the master oscillator under the condition that the master oscillator outputs a composite signal, specifically classifying the signals into a voltage current signal, a self-checking signal, a clock pulse signal, a local oscillator signal, a detection signal and a detection signal, and sequentially implementing the following steps:
and S1, voltage and current signal testing, namely connecting a digital multimeter to +18V, -15V, +16V and +27V power supply testing interfaces on the switching unit, switching on a 'total power supply' switch on the switching unit, placing a 'CLKen 1' switch on the switching unit at a '1' position, and observing a voltage value measured by the digital multimeter and consumption current of a direct-current stabilized power supply.
S2, self-checking signal testing, namely connecting a CH1 channel of a digital oscilloscope to +16vo of the switching unit, connecting a CH2 channel of the digital oscilloscope to the RF-OK of the switching unit, switching on a total power switch on the switching unit, and measuring the lag time of the falling edge of the RF-OK signal relative to the rising edge of the +16V power supply by using the digital oscilloscope.
And S3, clock pulse signal testing, namely connecting a digital oscilloscope 'CH 1' channel with a clock pulse signal test point of the switching unit, switching on a 'total power supply' switch of the switching unit, and measuring the period, duty ratio, high level and low level of the pulse signal output by the switching unit 'CLKf' point by using the digital oscilloscope.
And S4, local oscillation signal testing, namely connecting a spectrum analyzer to a local oscillation signal port of a main control oscillator, switching on a 'total power supply' switch of the switching unit, using a 'Freq Count' button of the spectrum analyzer to measure the frequency and the signal power of the local oscillation signal, and using the spectrum analyzer to measure phase noise at positions deviating from carrier frequencies by 5kHz and 10 kHz.
And S5, detecting the signal by using a spectrum analyzer to measure the power P of the central spectral line of the detected signal, connecting a coaxial detector to a detection signal port, connecting the coaxial detector to a digital oscilloscope by using a coaxial cable, setting the input impedance of the digital oscilloscope to be 50Ω, and measuring the modulation pulse period and the duty ratio of the detected signal by using the digital oscilloscope.
And S6, testing detection signals, namely respectively connecting a spectrum analyzer with 5 detection signal ports of a master oscillator, switching on a 'total power supply' switch of a switching unit, respectively measuring the power of intermediate frequency and radio frequency signals of the output signals of the 5 ports by using the spectrum analyzer, respectively measuring the frequency of the intermediate frequency and radio frequency signals of the output signals of the 5 ports by using a 'Freq Count' button of the spectrum analyzer, and recording the power and the frequency of the intermediate frequency and the radio frequency signals of the output signals of the 5 ports.
The voltage and current signals are used for detecting the power supply voltage and the consumption current, and the power supply can be connected to corresponding pins of the product, the state of the test platform is switched, and the voltage and the current are tested by using the digital multimeter and the direct current stabilized power supply.
The self-checking signal is tested by adding an excitation signal to the product, switching the state of the testing platform and testing the lag time of the falling edge of the self-checking signal relative to the rising edge of the +16V power supply.
The test of the clock pulse signal is to introduce a pin to be tested into a test platform, and the cycle and duty ratio index of the signal are measured by using an oscilloscope of the test platform.
The test of the local oscillation signal and the detection signal introduces an interface to be tested into a test platform, and a spectrum analyzer of the test platform is used for measuring frequency, power, isolation and phase noise indexes of the signals.
The test of the detection signal introduces an interface to be tested into a test platform, and measures the frequency and amplitude indexes of the signal by using a counter and an oscilloscope of the test platform.
Compared with the prior art, the invention has the beneficial effects that:
The method breaks through the problems of complex signal decomposition and difficult technical index test generated by the component, and meanwhile, the signal test platform designed according to the method can test the signal index completely, and by researching the repair technology of the pilot head main control oscillator, the repair technical index of the sub-component, the test method, the product repair technical specification and the repair work card are determined, and the technical level and quality control measures of factory instruments, repair technical files and repair staff all meet the repair requirements, so that the repair capability of the pilot head main control oscillator of the equipment is provided.
Drawings
Fig. 1 is a block diagram of the components of the present invention.
Detailed Description
The invention is described with reference to the accompanying drawings.
As shown in FIG. 1, in the condition that a master control oscillator outputs a composite signal, an excitation unit, a switching unit and a measurement unit are sequentially connected with the master control oscillator, wherein the signals are specifically classified into a voltage current signal, a self-checking signal, a clock pulse signal, a local oscillation signal, a detection signal and a detection signal:
and S1, voltage and current signal testing, namely connecting a digital multimeter to +18V, -15V, +16V and +27V power supply testing interfaces on the switching unit, switching on a 'total power supply' switch on the switching unit, placing a 'CLKen 1' switch on the switching unit at a '1' position, and observing a voltage value measured by the digital multimeter and consumption current of a direct-current stabilized power supply.
S2, self-checking signal testing, namely connecting a CH1 channel of a digital oscilloscope to +16vo of the switching unit, connecting a CH2 channel of the digital oscilloscope to the RF-OK of the switching unit, switching on a total power switch on the switching unit, and measuring the lag time of the falling edge of the RF-OK signal relative to the rising edge of the +16V power supply by using the digital oscilloscope.
And S3, clock pulse signal testing, namely connecting a digital oscilloscope 'CH 1' channel with a clock pulse signal test point of the switching unit, switching on a 'total power supply' switch of the switching unit, and measuring the period, duty ratio, high level and low level of the pulse signal output by the switching unit 'CLKf' point by using the digital oscilloscope.
And S4, local oscillation signal testing, namely connecting a spectrum analyzer to a local oscillation signal port of a main control oscillator, switching on a 'total power supply' switch of the switching unit, using a 'Freq Count' button of the spectrum analyzer to measure the frequency and the signal power of the local oscillation signal, and using the spectrum analyzer to measure phase noise at positions deviating from carrier frequencies by 5kHz and 10 kHz.
And S5, detecting the signal by using a spectrum analyzer to measure the power P of the central spectral line of the detected signal, connecting a coaxial detector to a detection signal port, connecting the coaxial detector to a digital oscilloscope by using a coaxial cable, setting the input impedance of the digital oscilloscope to be 50Ω, and measuring the modulation pulse period and the duty ratio of the detected signal by using the digital oscilloscope.
And S6, testing detection signals, namely respectively connecting a spectrum analyzer with 5 detection signal ports of a master oscillator, switching on a 'total power supply' switch of a switching unit, respectively measuring the power of intermediate frequency and radio frequency signals of the output signals of the 5 ports by using the spectrum analyzer, respectively measuring the frequency of the intermediate frequency and radio frequency signals of the output signals of the 5 ports by using a 'Freq Count' button of the spectrum analyzer, and recording the power and the frequency of the intermediate frequency and the radio frequency signals of the output signals of the 5 ports. The test signal test can detect the following signal tests, namely, a test signal 1 test is carried out, wherein a spectrum analyzer is connected to a detection 1 end of a main control oscillator to be connected with a 'total power supply' switch of a switching unit, the 'CLKen' switch on the switching unit is arranged at a '0' position, the 'Freq Count' button of the spectrum analyzer is used for measuring the frequency of the test 1 signal, the spectrum analyzer is used for measuring the power of the test 1 signal at the moment and is marked as P1, the 'CLKen' switch on the switching unit is arranged at a '1' position, the power of the test 1 signal at the moment is measured by the spectrum analyzer and is marked as P1', the value of recording I P1-P1' I is used for measuring the isolation of the switch, and a test 2 signal test is carried out, wherein the spectrum analyzer is connected to a detection 2 port of the main control oscillator, the 'total power supply' switch of the switching unit is connected, the spectrum analyzer is used for measuring the intermediate frequency output by the detection 2 port, the power of the radio frequency signal is measured and detected by using the Freq Count button of the spectrum analyzer to detect the intermediate frequency output by the 2 ports, The method comprises the steps of connecting a counter to a detection 3 port of a main control oscillator, setting the input impedance of the counter to be 50Ω, switching on a 'total power supply' switch of a switching unit, using the counter to measure the frequency of a detection 3 port output signal, connecting a digital oscilloscope to the detection 3 port of the main control oscillator by using a coaxial cable, setting the input impedance of the digital oscilloscope to be 50Ω, using the digital oscilloscope to measure the amplitude of the detection 3 port output signal, and detecting 4 signals, namely connecting the counter to a detection 4 port of the main control oscillator, setting the input impedance of the counter to be 50Ω, switching on the 'total power supply' switch of the switching unit, and using the counter to measure the frequency of the detection 4 port output signal. The method comprises the steps of connecting a digital oscilloscope to a detection 4 port of a main control oscillator through a coaxial cable, setting the input impedance of the digital oscilloscope to be 50Ω, using the digital oscilloscope to measure the amplitude of an output signal of the detection 4 port, detecting 5 signals, namely connecting a spectrum analyzer to a detection 5 port of the main control oscillator, switching on a 'total power supply' switch of a switching unit, using a button of a frequency spectrum analyzer 'Freq Count', measuring the power and the frequency of the output signal of the detection 5 port, detecting 6 signals, namely connecting a counter to a detection 6 port of the main control oscillator, setting the input impedance of the counter to be 50Ω, switching on the 'total power supply' switch of the switching unit, and using the counter to measure the frequency of the output signal of the detection 6 port. And connecting the digital oscilloscope with a coaxial cable at a detection 6 port of the main control oscillator, setting the input impedance of the digital oscilloscope to be 50Ω, and measuring the amplitude of the output signal of the detection 6 port by using the digital oscilloscope.
The excitation unit mainly solves the problems of power supply of components, input of clock signals and the like, and mainly comprises +18V, -15V, +16V, +27V power supply and excitation signals and the like, the switching unit can achieve rapid connection and state switching of the components, the measurement unit mainly tests various composite signal indexes output by the components, the voltage and current signals are used for detecting power supply voltage and consumed current, a power supply can be connected to corresponding pins of a product at first, the state of the test platform is switched, a digital multimeter and a direct-current stabilized power supply are used for testing the voltage and the current, the self-checking signal is tested by adding the excitation signals to the product, the state of the test platform is switched, the delay time of the falling edge of the self-checking signal relative to the rising edge of the +16V power supply is tested, the clock pulse signal is tested by introducing pins to be tested into the test platform, the oscilloscope to measure the cycle and duty ratio indexes of signals of the test platform are used, the interface to be tested is tested by the test platform, the frequency, the power, the isolation and the phase noise indexes of the frequency of the signals are measured by using a spectrum analyzer of the test platform, and the interface to be tested by the test platform is tested by the test platform, and the frequency of the test platform are tested by the interface to be tested by the test platform.
The invention provides a test method for a high-frequency component composite signal, which is convenient to operate, safe and reliable, breaks through the problem of difficult test of a high-frequency component composite signal technical index, can simulate a seeker clock signal and a seeker excitation signal, realizes detection of a local oscillator signal, a self-checking signal, a detection signal and a pulse signal in a position seeker main control oscillator component, ensures positioning of fault components when the main control oscillator component detects, and ensures safety and reliability of the main control oscillator component deep repair work.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the specific details of the above embodiments, and various equivalent changes can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and these equivalent changes all fall within the scope of the present invention.
Claims (6)
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| CN202411605039.6A CN119148084B (en) | 2024-11-12 | 2024-11-12 | Detection method of radar equipment seeker main control oscillator assembly |
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| CN202411605039.6A CN119148084B (en) | 2024-11-12 | 2024-11-12 | Detection method of radar equipment seeker main control oscillator assembly |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675807A (en) * | 2013-12-12 | 2014-03-26 | 江南机电设计研究所 | Semi-active radar seeker and signal processing method thereof |
| CN103675776A (en) * | 2013-12-16 | 2014-03-26 | 中国电子科技集团公司第四十一研究所 | In-pulse frequency spectrum parameter testing device and method for emission channel of digital array module |
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| JP2006337348A (en) * | 2005-06-06 | 2006-12-14 | Toshiba Corp | Radio wave induction seeker device |
| DE102011055693A1 (en) * | 2011-11-24 | 2013-05-29 | Hella Kgaa Hueck & Co. | Radar apparatus and method for detecting a failure of a receiving channel of a radar device |
| EP3662331A4 (en) * | 2017-08-02 | 2021-04-28 | Strong Force Iot Portfolio 2016, LLC | METHODS AND SYSTEMS FOR DETECTION IN AN INDUSTRIAL INTERNET OF THINGS DATA COLLECTION ENVIRONMENT WITH LARGE AMOUNTS OF DATA |
| CN111273243B (en) * | 2020-03-20 | 2025-01-14 | 中国人民解放军海军航空大学青岛校区 | Radar integrated test platform |
| CN111562556B (en) * | 2020-07-06 | 2022-10-18 | 上海无线电设备研究所 | General radio radar and target signal simulator and use method |
| CN111812604B (en) * | 2020-07-21 | 2023-04-18 | 中国人民解放军海军航空大学 | Full-coherent millimeter wave target simulator with composite seeker |
| CN112068107B (en) * | 2020-09-09 | 2022-08-05 | 北京理工大学 | A Pulsed Optical Phased Array Lidar System Based on Heterodyne Phase Locking |
| CN113092976B (en) * | 2021-03-17 | 2024-06-25 | 浙江铖昌科技股份有限公司 | System and method for testing radio frequency microwave high-power device |
| CN116068510B (en) * | 2023-02-06 | 2024-02-02 | 广州辰创科技发展有限公司 | Product testing system for automatic assembly product of phased array radar |
| CN118465624B (en) * | 2024-07-09 | 2024-09-27 | 国营洛阳丹城无线电厂 | Detection platform and detection method of multifunctional frequency synthesizer |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675807A (en) * | 2013-12-12 | 2014-03-26 | 江南机电设计研究所 | Semi-active radar seeker and signal processing method thereof |
| CN103675776A (en) * | 2013-12-16 | 2014-03-26 | 中国电子科技集团公司第四十一研究所 | In-pulse frequency spectrum parameter testing device and method for emission channel of digital array module |
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