RU177137U1 - MOBILE THREE COORDINATION RADAR STATION (RLS) - Google Patents

Abstract

The utility model relates to the field of radio engineering, in particular, to radar and can be used to detect, recognize, measure coordinates, track and recognize short and medium ranges a wide class of airborne objects. The technical result of the proposed utility model is to improve the tactical and technical characteristics of a radar station (Radar), namely, improving accuracy and resolution, increasing efficiency when working on low-flying targets and expanding the limit of direct radio This is achieved due to the fact that the radar containing the rotary-bearing device (OPU), on the rotating part of which the headlight is installed, state recognition equipment ( OGP) and a processor (PR), satellite navigation equipment (ASN), an indicator (IND), operates at L-band frequencies and uses AMU, on top of which there is an OPU with a HEADLIGHT, which allows you to raise the phase center of the HEADLIGHT to a given honeycomb, with corresponding links.

Description

The proposed utility model relates to the field of radio engineering, in particular, to radar and can be used to detect, recognize, measure coordinates, track and recognize at a short and medium range (up to 80 km) a wide class of airborne objects.

Known modern mobile radar all-round visibility for the detection of short and medium range air targets with antenna mast devices (AMU), similar in purpose, such as GIRAFFE 50AT and GIRAFFE AMB (Ericsson Microwave Systems AB, Sweden) [1], TRS 2620 / 2630 Gerfaut (Thomson-CSF AIRSYS, France), AE-480 (ADARS, United Arab Emirates) [2], which allow detecting and tracking aerial objects (airplanes, helicopters, unmanned aerial vehicles, cruise missiles and others). The disadvantages of these tools are the operating frequency range in excess of 2 GHz, which reduces their efficiency under adverse weather conditions (rain, snow, fog, etc.) and leads to a decrease in the detection range due to an increase in the attenuation of radio waves in the atmosphere. In addition, to ensure comparable detection characteristics in range, these tools require greater energy consumption due to the smaller effective scattering area of targets compared to tools operating in the L-band.

Of the well-known mobile three-coordinate radars, the closest in technical essence, schematic, tactical, and operational characteristics is the radar [3], which contains a rotary support device (OPU), state identification channel equipment (OGP) installed on the rotating part of the OPU phased antenna array (PAR), containing the transceiver line of the vibrators of the location channel, the built-in antenna of the UCP channel and the block of transceiver modules (PPM), as well as the processor (PR), indicator Torr (IND), the elevation drive PAR disposed like and PR, a rotating part OPU, satellite navigation (ACh), as well as equipment power, life support, management, control, timing alignment, connection and data consumers.

The disadvantages of the prototype are the low accuracy and resolution in angular coordinates due to work in the lower frequency range, as well as large closing angles that reduce the limit of direct radio visibility.

The technical result of the proposed utility model is to improve the tactical and technical characteristics of the radar, namely, increasing accuracy and resolution, increasing efficiency when working on low-flying targets and expanding the direct radio visibility limit by placing the headlamp on an antenna mast device (AMU).

The specified technical result is achieved due to the fact that the radar containing the rotary support device (OPU), phased array antenna (PAR) installed on the rotating horizontal support platform of the OPU, state recognition equipment (UCP), satellite navigation equipment (ASN), processor (PR) and indicator (IND), as well as equipment for power supply, monitoring, control, synchronization, orientation, communication and data transmission, operates at L-band frequencies and uses an antenna mast device thy (AMU), on top of which there is an OPU with a HEADLIGHT, which allows you to raise the phase center of the HEADLIGHT to a given height.

The figure 1 presents the structural diagram of the proposed radar, where indicated:

1 - phased array antenna (PAR);

2 - slewing-rotary device (OPU);

3 - satellite navigation equipment (ASN);

4 - equipment for identification of state affiliation (UCP);

5 - processor (PR);

6-antenna mast device (AMU);

7 - indicator (IND).

In figures 2 and 3 presents views of a mobile three-coordinate radar on a caterpillar carrier, respectively, in the transport position and in the "work on the go" position. In FIG. 4 shows a radar in deployed position.

The proposed mobile three-coordinate radar includes a rotary support device (OPU) 2, on the rotating part of which a phased antenna array (PAR) 1, state recognition equipment (OGP) 4 and processor (PR) 5, satellite navigation equipment (ASN) 3, indicator (IND) 7, as well as an antenna mast device (AMU) 6, on top of which there is an OPU 2, while the first input-output of the UCP 4 is connected to the HEADLIGHT 1, the input and n + m of outputs of which are connected, respectively, with the output and n + m inputs PR 5, and the first and second inputs-in moves PR 5 are connected, respectively, with the second input-output of the OGP 4 and the first input-output of the OPU 2, the second, third and fourth inputs and outputs of which are connected, respectively, with the first input-output of AMU 6, the first input-output of IND 7 the input-output of the ASN 3, while the second input-output of the IND 7 is connected to the second input-output of the AMU 6, and the output of the IND 7 is the output of the radar.

The radar also contains equipment for power supply, monitoring, control, synchronization and data transmission to consumers, which are not shown in the figure to simplify understanding of the radar operation.

HEADLIGHT 1 is a flat antenna array, including n identical horizontal transceiver lines of the vibrators of the location channel and n BAT, m identical receive lines of the vibrators of the compensation channel and m receivers of the compensation channel, and also contains an antenna of the OGP 4 equipment recognition channel and a signal generation and reception unit. Each PPM contains a power amplifier, an antenna switch, and a low-noise amplifier and is connected to one of the transceiver lines of the location channel vibrators. The signal generation and reception unit consists of an exciter, a preliminary broadband power amplifier, a power divider into n, n analog phase shifters and attenuators, n + m analog-to-digital converters (ADCs). All FAR 1 equipment on the front side is covered with a radiotransparent shelter.

OPU 2 is intended for power fastening and rotation of the HEADLIGHT 1, OGP 4 and PR 5 in the required modes and includes (see Fig. 4):

- electric tilt 8;

- tilt sensor 9;

- electric rotation drive combined with an azimuth sensor (inside the control system 2);

- low-frequency current collector (inside the OPU 2).

AMU 6 frame type mounted on the supporting frame 10 of the side of the carrier, consists of three mast legs 11, a lifting cylinder 12, hydraulic equipment 13 and a lifting sensor 14. On top of the AMU 6 mounted OPU 2. Deployment of the AMU 6 to a height with a stationary carrier is provided by one hydraulic cylinder pivotally mounted on the base and one of the three legs of the mast 11 (Fig. 4).

A rotating transformer can be used as an azimuth sensor, and an accelerometer can be used as tilt and lift sensors.

Owing to the simple and reliable design of AMU 6, the time for coagulation / deployment of the station in the parking lot with the AMU 6 raised is no more than 5 minutes.

The OGP 4 equipment is a transceiver unit of a standard ground-based radio interrogator, the antenna of which is integrated into the headlight 1.

PR 5 implements digital processing of radar information, as well as digital formation of a radiation pattern on reception.

ASN 3 consists of an antenna and a computer for orienting and topographic positioning of the radar during its operation both in a stationary position and on a march, and is located directly on the carrier.

IND 7 is the operator’s workplace, including an information display device, a real-time operating system and a radar operation control panel. From the output of IND 7, which is the output of the entire radar, there is a transmission of information about airspace to secondary users (consumers).

The proposed mobile radar is placed on a mobile ground carrier, provides parking at a raised and lowered AMU 6, as well as work on the march with a lowered AMU 6.

The radar operates as follows.

An overview of the space in azimuth is carried out by circular rotation of the base of the OPU 2 with the HEADLIGHT 1 according to the command received from the first input-output of the IND 7.

In the transmission mode, probe pulses with the required characteristics are formed in PAR 1 upon command from the output of PR 5: formed by the driver and amplified by the power of the broadband amplifier of the signal generation and reception unit, using the power divider n, analog attenuators and phase shifters are distributed in magnitude and phase between inputs n MRP. Each BAT amplifies the input pulses in power and, through the antenna switches, feeds them to “their” identical horizontal transceiver line of the location channel vibrators. As a result, a radiation pattern for transmitting a cosecant view is formed in space.

Echo signals are received by n rulers of the location channel vibrators and m lines of vibrators of the compensation channel and are fed respectively to the inputs of n MRP of the location channel and m receivers of compensation channels, where the received signals are filtered, amplified, and then transferred to the intermediate frequency by a mixer and transferred to the intermediate frequency to the unit for generating and receiving signals. In the block of formation and reception of signals, the received signals are digitized and from n + m outputs of the HEADLIGHT 2 digital signals are fed to the n + m inputs of PR 5. In the reception mode of PR 5 it performs digital chart formation with the simultaneous formation of a set of separate (partial) rays by elevation, thereby, electronic scanning of the elevation occurs.

Upon request, from the first input-output of PR5 by the OGP 4 equipment and the antenna of the OGP 4 included in the HEADLIGHT 1, information on the state of affiliation of air objects is generated through the second input-output of the OGP 4, which goes back to PR 5. Upon request from the second entrance, the output of PR 5 through the OPU 2 from the input-output of the ASN 3 through the OPU 2 to the PR 5 receives information about the heading, roll and differential of the carrier, and also from the first input-output of the OPU 2 to the second input-output of the PR 5 receives information about the azimuthal and elevation the position of the HEADLIGHT 1 from the azimuth and tilt sensors 9 included in O At 2.

From the first input-output of the AMU 6 through the low-frequency current collector of the OPU 2, the second input-output of PR 5 receives information about the height of the phase center of the HEADLIGHT 1 from the lift sensor 14.

Based on the received data, PR 5 performs spatio-temporal processing of reflected signals (primary processing), protecting the radar from passive and active interference, detecting, and measuring the coordinates of airborne objects. Then the information in the form of codograms from the second input-output of PR 5 through the low-frequency current collector of the OPU 2 is supplied to the first input-output of IND 7.

IND 7 performs secondary processing of information (tracking the trajectories of air objects and recognition of types of air targets), automatic control of radar operation, display of information on a liquid crystal display under the control of a real-time operating system, and control of radar operation by an operator through a current collector located in the control room 2 using PR 5. According to the commands received from IND 7 to the second input-output of AMU 6, the lift height of the AMU 6 is controlled using the equipment of the hydraulic system 13 and the hydraulic ram and 12 and the tilt control of the HEADLIGHT 1 using an electric tilt drive 8.

The use of AMU 6 allowed to increase the effectiveness of the radar when working on low-flying targets and to expand the limit of direct radio visibility, providing work in difficult weather conditions.

The use of the L-band made it possible to increase accuracy and resolution.

An additional technical result is an increase in the likelihood of missed anti-radar missiles depending on the selective ability of the homing missile due to the formation of a mirror (imaginary) phase center of the antenna due to the influence of the earth’s surface [4, p. 160], increased survivability of the station’s calculation when an anti-radar missile hits the phase center of the antenna array, as well as the ability to work from under cover due to the use of AMU 6.

Radar test results confirmed the effectiveness of lifting the antenna phase center when detecting low-flying targets, especially at positions with large closing angles.

Thus, the use of AMU 6 and the use of the L-frequency range made it possible to improve the tactical and technical characteristics of the radar, namely, to increase the accuracy and resolution, increase efficiency when working on low-flying targets and expand the direct radio visibility limit.

Information sources:

1. www.saabgroup.com;

2. www.adars.ae;

3. Patent for utility model No. 96664, published on 08/10/2010 - prototype;

4. Radio-electronic systems: Fundamentals of construction and theory. Directory. Ed. 2nd, rev. and add. / ed. POISON. Shirman. - M.: Radio Engineering, 2007 .-- 512 p.

Claims (1)

A mobile three-coordinate radar station (RLS), including a rotary support device (OPU), on the rotating part of which a phased array antenna (PAR), state recognition equipment (UCP) and a processor (PR), satellite navigation equipment (ASN) and an indicator are installed (IND), while the first input-output of the UCP is connected to the PAR, the input and n + m outputs of which are connected, respectively, with the output and n + m inputs of the PR, and the first and second inputs and outputs of the PR are connected, respectively, with the second input UCP and first entry house-output of the control panel, the third and fourth input-outputs of which are connected, respectively, with the first input-output of the IND and input-output of the ASN, characterized in that the radar operates at L-band frequencies and an antenna mast device (AMU) is additionally introduced into it ), on top of which there is an OPU, the second input-output of which is connected to the first input-output of the AMU, the second input-output of which is connected to the second input-output of the IND, the output of which is the output of the radar.

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