CN114167403A - Double-channel broadband radar target and interference simulation system - Google Patents
Double-channel broadband radar target and interference simulation system Download PDFInfo
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- CN114167403A CN114167403A CN202111483218.3A CN202111483218A CN114167403A CN 114167403 A CN114167403 A CN 114167403A CN 202111483218 A CN202111483218 A CN 202111483218A CN 114167403 A CN114167403 A CN 114167403A
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
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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
- G01S7/38—Jamming means, e.g. producing false echoes
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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
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/415—Identification of targets based on measurements of movement associated with the target
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a two-channel broadband radar target and interference simulation system in the technical field of electronic countermeasure, wherein a bearing platform is a mooring unmanned aerial vehicle device or a ground high tower; the airborne electronic load device is used for simulating and generating target echo and interference signals flying along a set air route; the mooring unmanned aerial vehicle device is used for carrying the airborne electronic load device to move along the horizontal and vertical directions, and simulating the direction and the pitching angle of the target; the ground high tower is used for installing an airborne electronic load device to simulate and generate radar echo signals of a fixed target or a moving target according to a set track, and equivalently simulating the distance information, Doppler information, azimuth angle information and target amplitude variation characteristics of the target; and the ground support device is in communication connection with the airborne electronic load device and the mooring unmanned aerial vehicle device respectively and is used for sending a control command and receiving analog data. The invention can simulate the change of the pitching angle of the radar echo signal and solve the problem of endurance of the unmanned aerial vehicle platform.
Description
Technical Field
The invention belongs to the technical field of electronic countermeasure, and particularly relates to a two-channel broadband radar target and interference simulation system.
Background
In a typical battlefield environment, the radar also faces passive interferences such as landing clutter, meteorological clutter, foil strips and the like and active interference signals emitted by an electronic warfare aircraft while monitoring and detecting an aerial target. In the prior art, ground equipment is limited by the fact that a site needs to be erected on a high tower when in use, and the change of a pitching angle cannot be simulated; the conventional unmanned aerial vehicle platform is limited by the battery capacity (usually 2 hours), and cannot work for a long time.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a two-channel broadband radar target and interference simulation system, which can be used for simulating the change of a pitching angle and solving the problem of endurance of an unmanned aerial vehicle platform.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a radar target and interference simulation system comprises an airborne electronic load device, a bearing platform and a ground support device; the bearing platform is a mooring unmanned aerial vehicle device or a ground high tower; the airborne electronic load device is used for simulating and generating a target echo and an interference signal flying along a set air route; the mooring unmanned aerial vehicle device is used for carrying the airborne electronic load device to move along the horizontal and vertical directions, and simulating the direction and the pitching angle of the target; the ground high tower is used for installing the airborne electronic load device to simulate and generate a radar echo signal of a fixed target or a moving target according to a set track, and equivalently simulating the distance information, Doppler information, azimuth angle information and target amplitude variation characteristics of the target; and the ground support device is in data communication with the airborne electronic load device and the mooring unmanned aerial vehicle device respectively.
Furthermore, the airborne electronic load device comprises an antenna unit, a power amplifier unit, a microwave unit, an intermediate frequency signal processing unit and a main control unit which are electrically connected in sequence; the microwave unit comprises a radio frequency receiving unit and two radio frequency transmitting units, the two radio frequency transmitting units are electrically connected with the antenna unit after being synthesized, and the radio frequency receiving unit is electrically connected with the antenna unit.
Further, mooring unmanned aerial vehicle device includes rotor unmanned aerial vehicle platform, mooring cable, mooring control box and ground satellite station, and rotor unmanned aerial vehicle platform is connected through mooring cable and mooring control box electricity, and mooring control box is used for providing the electric energy and transmitting ground satellite station to the control signal of rotor unmanned aerial vehicle platform and the operational data of rotor unmanned aerial vehicle platform to the rotor unmanned aerial vehicle platform.
Further, the ground support device comprises a vehicle carrier, wherein the vehicle carrier is used for carrying the operation platform, the positioning device, the data processing device, the mooring cable, the mooring control box and the ground station; the control platform is used for sending control instructions to the airborne electronic load device and the mooring unmanned aerial vehicle device and receiving operation data of the airborne electronic load device and the mooring unmanned aerial vehicle device; the positioning equipment is used for acquiring positioning information; the data processing equipment comprises a frequency spectrograph, a signal source and an oscilloscope.
Further, when the bearing platform is a mooring unmanned aerial vehicle device, the airborne electronic load device works in an airborne flying mode, and the distance and the speed of the target arrival are simulated by adopting digital signal processing technology to delay modulation, amplitude modulation and Doppler modulation of the intermediate frequency signals; the interference modulation of the intermediate frequency signal simulates electronic interference signals of various types and is used for radar equipment training, testing, function inspection and performance evaluation tasks.
Furthermore, when the airborne electronic loading device works in the airborne flying mode, the electronic countermeasure simulation test is only carried out on a single tested radar by adopting a receiving and transmitting time-sharing working sequence.
Furthermore, when the bearing platform is a ground high tower, the airborne electronic load device works in a ground fixed mode, the antenna unit comprises a transmitting antenna and a receiving antenna, and two paths of radio frequency transmitting units in the microwave unit are synthesized and then electrically connected with the transmitting antenna; the receiving antenna is electrically connected with a radio frequency receiving unit in the microwave unit.
Further, when the airborne electronic load device works in a ground fixed mode, a work time sequence of simultaneous receiving and sending is adopted, and the airborne electronic load device receives the transmitting signal and simultaneously transmits a simulated target signal or an interference signal.
Compared with the prior art, the invention has the following beneficial effects: the invention sets the bearing platform as a mooring unmanned aerial vehicle device or a ground high tower, the airborne electronic load device independently generates a target and an interference signal for simulating and generating a target echo and an interference signal flying along a set air route, the mooring unmanned aerial vehicle device is used for carrying the airborne electronic load device to move along the horizontal direction and the vertical direction to simulate the direction and the pitching angle of the target, the ground high tower is used for installing the airborne electronic load device to simulate and generate a radar echo signal of a fixed target or a target moving according to a set flight path, and the distance information, the Doppler information, the direction angle information and the target amplitude change characteristic of the equivalent simulation target can solve the simulation of the pitching angle change and simultaneously solve the problem of the endurance of the unmanned aerial vehicle platform.
Drawings
FIG. 1 is a schematic diagram of the operation principle of the airborne mode in an embodiment of the present invention;
FIG. 2 is a schematic diagram of the ground stationary mode operation of an embodiment of the present invention;
FIG. 3 is a first geometric relation of routes of an airborne electronic load device of the unmanned aerial vehicle in the embodiment of the invention;
FIG. 4 is a second geometric relation of routes of the airborne electronic load device of the unmanned aerial vehicle in the embodiment of the invention;
FIG. 5 is a timing diagram illustrating time-sharing operation of the transceiver according to an embodiment of the present invention;
fig. 6 is a timing diagram of simultaneous operation of transmitting and receiving in the embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A dual-channel broadband radar target and interference simulation system comprises an airborne electronic load device, a bearing platform and a ground support device; the bearing platform is a mooring unmanned aerial vehicle device or a ground high tower; the airborne electronic load device is used for simulating and generating a target echo and an interference signal flying along a set air route; the mooring unmanned aerial vehicle device is used for carrying the airborne electronic load device to move along the horizontal and vertical directions, and simulating the direction and the pitching angle of the target; the ground high tower is used for installing the airborne electronic load device to simulate and generate a radar echo signal of a fixed target or a moving target according to a set track, and equivalently simulating the distance information, Doppler information, azimuth angle information and target amplitude variation characteristics of the target; the ground support device is in data communication with the airborne electronic load device and the mooring unmanned aerial vehicle device respectively, and transportation is provided.
The embodiment has the advantages that under the outfield radar position environment, targets and interference echo signals under typical operation conditions are built by adopting a mode of mooring an unmanned aerial vehicle mounting platform or ground (high tower) erection and the like, controllable test situation construction capacity is provided, and various radar target echo signals, active interference signals and the like are provided for performance index testing and evaluation of a tested radar system.
During the external field test, the airborne electronic load device is set at a preset position, and the distance between the airborne electronic load device and the radar antenna is generally 500-2000 m, so that the requirements of far field conditions are met. And (3) simulating the track changes of the target and the jammer at the remote position at the near position point of the trained equipment in an equal ratio mode, wherein the track changes comprise azimuth, pitch, distance, speed, beam incidence angle and the like. And (3) simulating signal characteristics such as the arrival distance, Doppler and amplitude of target echo and interference signals according to an geometric relation between a real track and a simulated track by adopting a digital radio frequency storage technology.
The embodiment specifically includes the following functions:
(1) radar target echo signal simulation function: simulating to generate a radar echo signal of a fixed target or a moving target according to a set track, equivalently simulating the distance information, Doppler information, azimuth angle information, pitching angle information and target amplitude variation characteristics of the target in a certain range, and detecting and evaluating system performance indexes such as radar detection power, detection precision and resolution;
(2) interference signal simulation function: the simulation generates suppression interference (narrow-band aiming frequency interference, wide-band blocking interference, frequency sweep interference, comb spectrum interference and the like) and deception interference (multi-false-target interference, speed towing interference, distance + speed towing interference, smart noise, slicing interference and the like); the interference parameters can be manually set; the method has interference pattern combination, interference strategy programming and setting, and is used for detecting and evaluating radar anti-interference performance indexes;
(3) task planning and track control functions: editing and setting tasks through system main control software, equivalently simulating real tracks by setting the motion tracks of the unmanned aerial vehicle platform in a certain range, and transmitting the motion tracks to the unmanned aerial vehicle platform and the airborne electronic load device in a war file downloading mode before testing;
(4) flexible control functions: for airborne electronic load devices of different frequency bands, software is designed in a unified manner; the control of a single set of equipment can be realized, and a plurality of sets of networked equipment can be independently controlled at the same time;
(5) the system BITE function is provided, and the fault is positioned to the replaceable functional unit;
(6) the test data management system has a time system function and supports the functions of recording, storing and reporting test data and parameters.
The system index of the embodiment includes: (1) frequency range: 2 GHz-18 GHz; (2) adaptation to radar signal form: conventional pulse, chirp, continuous wave, etc.; (3) instantaneous operating bandwidth: 2 GHz; (4) receiver sensitivity: -50 dBm; (5) equivalent radiation power: 20 dBW; (6) simulating a target distance: 1 km-1000 km; (7) simulating a target speed: the range is as follows: 0 to +/-7000 m/s (0 to 20 Ma), and setting; precision: is better than 1 m/s; doppler shift accuracy: less than or equal to 1 Hz; (8 interference patterns: squashed interference, spoofed interference, and combined interference patterns.
The system of the embodiment comprises the following components: the system comprises an airborne electronic load device, a mooring unmanned aerial vehicle device or a ground high tower, ground security equipment and the like.
The airborne electronic load device comprises an antenna unit, a power amplifier unit, a microwave unit (two-way radio frequency transmitting unit), an intermediate frequency signal processing unit, a main control unit, a power supply unit and the like.
The mooring unmanned aerial vehicle system comprises a rotor unmanned aerial vehicle platform, a mooring cable, a mooring control box, a ground station (reinforced portable computer) and the like.
The ground support equipment comprises a vehicle, an operation platform (portable computer), an oil engine, corollary equipment (time management equipment, positioning/north-determining equipment, an optical transmitter and receiver, a frequency spectrograph, a signal source, an oscilloscope and the like) and the like.
The working modes of the embodiment are divided into an air hanging mode and a ground fixed mode. In the two working modes, the receiving and transmitting modes, the equipment framework and the function realization of the system are different.
1) Aerial flying mode
In the air hanging mode, a target echo and an interference signal flying along a set air route in a long distance are generated by utilizing an onboard electronic load device below a mooring unmanned aerial vehicle platform in an equal ratio simulation mode in a short distance, and the direction and the pitching angle of a target are simulated through the horizontal and vertical movements of the mooring unmanned aerial vehicle platform; adopting digital signal processing technology to simulate the distance and speed of the target arrival by delay modulation, amplitude modulation and Doppler modulation of the intermediate frequency signal; the interference modulation of the intermediate frequency signal simulates electronic interference signals of various types, and is used for tasks such as radar equipment training, testing, function inspection, performance evaluation and the like. And in the air hanging and flying working mode, a receiving and transmitting time-sharing working time sequence is adopted, and an electronic countermeasure simulation test is only carried out on a single tested radar. Considering that the mounting condition of the antenna on the unmanned aerial vehicle platform is limited, the receiving antenna and the transmitting antenna are additionally arranged at the same time; the receiving and transmitting isolation degree of the system design is difficult to control, the transmitting signal can seriously influence the receiving signal, the self excitation of the receiving and transmitting is caused, the interference is invalid, and the working principle of the air hanging flying mode is shown in figure 1.
2) Ground fixed mode
When the ground is in a fixed mode, the airborne electronic load device can be fixedly arranged on a high tower or the ground for use; the simulation generates radar echo signals of fixed targets or targets moving according to set tracks, and distance information, Doppler information, azimuth angle information and target amplitude change characteristics of the targets are equivalently simulated, so that the simulation system is used for tasks such as radar equipment training, testing, function inspection, performance evaluation and the like. And when the ground is in a fixed working mode, a working time sequence for receiving and transmitting simultaneously is adopted, and electronic countermeasure simulation tests can be performed on the two tested radars. When the antenna is installed on the ground, the receiving and transmitting antenna can be separately erected without limitation, the receiving channel is connected with the airborne antenna, and the two paths of radio frequency transmitting units are synthesized and then connected with the ground power amplifier to be transmitted to the ground antenna. The system can work in a receiving and transmitting simultaneous mode, the airborne electronic load device can transmit simulated target signals or interference signals while receiving the transmitted signals, and the ground fixed mode working principle is shown in figure 2.
The working principle of the embodiment comprises the following steps:
1) static simulation
An unmanned aerial vehicle mounting platform is adopted, and the target and the track change of an interference machine at a long-distance position are simulated at a short-distance position point of the trained equipment in an equal ratio mode. When the tethered unmanned aerial vehicle is in a hovering state after being lifted off, the change of the target pitch angle is not simulated; simulations of target distance, velocity, etc. may be achieved as shown in fig. 3.
2) Dynamic simulation
An unmanned aerial vehicle mounting platform is adopted, and the target and the track change of an interference machine at a long-distance position are simulated at a short-distance position point of the trained equipment in an equal ratio mode. Because the flight safety of the unmanned aerial vehicle is considered, the tethered unmanned aerial vehicle only makes lifting changes in height; and (3) combining the unmanned aerial vehicle height and the target distance change to realize the track simulation of the target from far to near or from near to far, as shown in fig. 4.
3) Transmit-receive time-sharing working sequence
In the airborne operating mode, the device operating system performs electronic countermeasure only for a single radar when transmitting and receiving, as shown in fig. 5.
4) Transmit-receive simultaneous operation timing
When the ground is in a fixed working mode, the receiving and transmitting antennas can be erected at separate positions, so that the receiving and transmitting isolation of the system is increased; the electronic countermeasure simulation test can be performed on two tested radars by adopting the working sequence of simultaneous transmission and reception, as shown in fig. 6.
The workflow of this embodiment includes:
1) preparation for installation
Before the test, a radar test position needs to be checked, factors such as far-field distance requirements, visibility requirements, target and interference azimuth angle interval requirements, airspace safety requirements and the like are comprehensively considered according to task requirements, and a flight airspace of the unmanned airborne target airborne electronic load device is selected.
The ground test vehicle runs to an outfield test site, the oil engine, the unmanned aerial vehicle and the airborne electronic load device are transported to a selected test area in sequence, and the auxiliary support plate at the rear part of the test vehicle slides out by means of the roller at the bottom of the oil engine and pushes the auxiliary support plate to a corresponding position in consideration of the heavy weight of the oil engine. After the system reaches the takeoff point position, the airborne electronic load device is installed on the unmanned aerial vehicle platform, the airborne electronic load device is started for self-checking, and subsequent test work can be carried out after the system runs normally.
2) Preparation of first joint debugging
After the airborne electronic load device reaches the flight point position for the first time, joint debugging work before a test needs to be carried out.
The onboard electronic load equipment is normally electrified and self-checked without calibration; can meet the daily training task of the field.
The working frequency range of the tested device is known before the test, and the local oscillator is directly controlled to the corresponding frequency by setting the test frequency through the main control software.
a) And (4) hovering the unmanned aerial vehicle after the unmanned aerial vehicle rises to a set height, normally starting the tested radar, and radiating signals to the air. The airborne electronic load device receives the radar signal and observes the signal receiving condition of the airborne electronic load device in the radar working period;
b) controlling a target airborne electronic load device to generate a target signal at a certain specific distance, observing the simulated target signal at a radar terminal, and adjusting the output power of the airborne electronic load device to enable the amplitude of the simulated target to be equivalent to the echo of a real target;
c) and controlling the interference airborne electronic load device to generate noise suppression interference, and shutting down the tested radar. Measuring interference power at the center of a radar antenna array surface;
d) and adjusting the output power of the electronic load carrying device according to the test result, so that the interference power received by the radar end meets the test requirement and is equivalent to the interference power spectral density released by the simulation object under the test environment.
3) Procedure of the test
After the airborne electronic load device is firstly jointly adjusted (only once joint adjustment is needed for one radar location), the formal test can be entered:
a) before taking off, planning an unmanned aerial simulation route according to the route equal proportion;
b) the airborne electronic load device loads tested radar parameters, simulation targets or interference type parameters and carries out system initialization;
c) the unmanned aerial vehicle takes off and reaches a preset track point, and an analog signal output signal is opened to continuously simulate;
d) in the flight process of the unmanned aerial vehicle, the actual air route position of the unmanned aerial vehicle and the current simulation state of the airborne electronic load device are returned to a ground display and control terminal for observation in real time through a mooring cable (network signal);
e) in the flight process of the unmanned aerial vehicle, the ground control terminal can intervene in the output power of the airborne electronic load device through a mooring cable (network signal) instruction;
f) in the flight process of the unmanned aerial vehicle, the airborne electronic load device records parameters such as a flight path position, a signal pattern and signal power of a current analog signal in real time at synchronous time;
g) before the unmanned aerial vehicle returns, the output signal of the airborne electronic load device is turned off;
h) and the unmanned aerial vehicle navigates back to the ground, and the radar detection result is compared, analyzed and processed through the test record data.
4) Withdrawing process
The main steps of system withdrawal are as follows:
a) sequentially clicking a test ending button and an exit button on a control terminal interface, and stopping the radiation of the signal by the control system;
b) the tethered unmanned aerial vehicle is recovered by one key, the power supply of the equipment is turned off, and the onboard electronic load device and the antenna are disassembled and assembled back to the packaging box;
c) and the oil engine, the unmanned aerial vehicle and the airborne electronic load device are withdrawn in sequence and mounted on a ground test vehicle.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A radar target and interference simulation system is characterized by comprising an airborne electronic load device, a bearing platform and a ground guarantee device; the bearing platform is a mooring unmanned aerial vehicle device or a ground high tower;
the airborne electronic load device is used for simulating and generating a target echo and an interference signal flying along a set air route;
the mooring unmanned aerial vehicle device is used for carrying the airborne electronic load device to move along the horizontal and vertical directions, and simulating the direction and the pitching angle of the target;
the ground high tower is used for installing the airborne electronic load device to simulate and generate a radar echo signal of a fixed target or a moving target according to a set track, and equivalently simulating the distance information, Doppler information, azimuth angle information and target amplitude variation characteristics of the target;
and the ground support device is in data communication with the airborne electronic load device and the mooring unmanned aerial vehicle device respectively.
2. The radar target and interference simulation system of claim 1, wherein the airborne electronic load device comprises an antenna unit, a power amplifier unit, a microwave unit, an intermediate frequency signal processing unit and a main control unit which are electrically connected in sequence; the microwave unit comprises a radio frequency receiving unit and two radio frequency transmitting units, the two radio frequency transmitting units are electrically connected with the antenna unit after being synthesized, and the radio frequency receiving unit is electrically connected with the antenna unit.
3. The radar target and interference simulation system of claim 2, wherein the tethered drone device includes a rotorcraft platform, a tether cable, a tether control box, and a ground station, the rotorcraft platform being electrically connected to the tether control box via the tether cable, the tether control box being configured to provide electrical power to the rotorcraft platform and to relay control signals from the ground station to the rotorcraft platform and operational data of the rotorcraft platform.
4. The radar target and interference simulation system of claim 3, wherein the ground support means comprises a vehicle for carrying the steering platform, the positioning device, the data processing device, the mooring cable, the mooring control box and the ground station; the control platform is used for sending control instructions to the airborne electronic load device and the mooring unmanned aerial vehicle device and receiving operation data of the airborne electronic load device and the mooring unmanned aerial vehicle device; the positioning equipment is used for acquiring positioning information; the data processing equipment comprises a frequency spectrograph, a signal source and an oscilloscope.
5. The radar target and interference simulation system of claim 2, wherein when the load-bearing platform is a tethered drone device, the airborne electronic load device operates in an airborne mode, and the distance and speed of arrival of the target is simulated by delay modulation, amplitude modulation, doppler modulation of the intermediate frequency signal using digital signal processing techniques; the interference modulation of the intermediate frequency signal simulates electronic interference signals of various types and is used for radar equipment training, testing, function inspection and performance evaluation tasks.
6. The radar target and interference modeling system of claim 5, wherein the electronic countermeasure simulation test is performed for only a single radar under test using a transmit/receive time-division operation sequence when the airborne electronic loading unit is operating in an airborne mode.
7. The radar target and interference simulation system of claim 2, wherein when the load-bearing platform is a ground tower, the airborne electronic load device operates in a ground fixed mode, the antenna unit comprises a transmitting antenna and a receiving antenna, and two paths of radio frequency transmitting units in the microwave unit are synthesized and then electrically connected with the transmitting antenna; the receiving antenna is electrically connected with a radio frequency receiving unit in the microwave unit.
8. The radar target and interference modeling system of claim 7, wherein the onboard electronic load device transmits the modeled target signal or the interference signal while receiving the transmitted signal using a transmit-receive-while-receive timing sequence when the onboard electronic load device operates in a ground-based stationary mode.
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| CN202111483218.3A CN114167403A (en) | 2021-12-07 | 2021-12-07 | Double-channel broadband radar target and interference simulation system |
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| CN202111483218.3A CN114167403A (en) | 2021-12-07 | 2021-12-07 | Double-channel broadband radar target and interference simulation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219999A (en) * | 2022-06-29 | 2022-10-21 | 扬州宇安电子科技有限公司 | Broadband low-stray cannonball simulation system |
| CN115453474A (en) * | 2022-09-21 | 2022-12-09 | 南京新频点电子科技有限公司 | Subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device |
| CN115542252A (en) * | 2022-09-21 | 2022-12-30 | 扬州宇安电子科技有限公司 | Device for realizing radar main lobe target simulation and interference based on ground-air union |
| CN116430330A (en) * | 2023-06-08 | 2023-07-14 | 航宇伟创科技(北京)有限公司 | Unmanned aerial vehicle-based radar radiation signal simulation system |
| CN117014078A (en) * | 2023-10-07 | 2023-11-07 | 武汉能钠智能装备技术股份有限公司 | Unmanned aerial vehicle signal detection method and detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219999A (en) * | 2022-06-29 | 2022-10-21 | 扬州宇安电子科技有限公司 | Broadband low-stray cannonball simulation system |
| CN115453474A (en) * | 2022-09-21 | 2022-12-09 | 南京新频点电子科技有限公司 | Subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device |
| CN115542252A (en) * | 2022-09-21 | 2022-12-30 | 扬州宇安电子科技有限公司 | Device for realizing radar main lobe target simulation and interference based on ground-air union |
| CN115453474B (en) * | 2022-09-21 | 2023-11-28 | 南京新频点电子科技有限公司 | Subsonic fixed wing unmanned aerial vehicle platform radar comprehensive simulation device |
| CN116430330A (en) * | 2023-06-08 | 2023-07-14 | 航宇伟创科技(北京)有限公司 | Unmanned aerial vehicle-based radar radiation signal simulation system |
| CN116430330B (en) * | 2023-06-08 | 2023-09-05 | 航宇伟创科技(北京)有限公司 | Unmanned aerial vehicle-based radar radiation signal simulation system |
| CN117014078A (en) * | 2023-10-07 | 2023-11-07 | 武汉能钠智能装备技术股份有限公司 | Unmanned aerial vehicle signal detection method and detection system |
| CN117014078B (en) * | 2023-10-07 | 2023-12-26 | 武汉能钠智能装备技术股份有限公司 | Unmanned aerial vehicle signal detection method and detection system |
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