Radar integrated test platform

Abstract

The present invention discloses a radar comprehensive test platform, including: a power module, a microwave switch group and a microwave input port, a microwave component, an industrial control computer, an oscilloscope, a multimeter, a signal source, and a microwave comprehensive tester; the power module is connected to the microwave switch group and the microwave input port, the industrial control computer, the oscilloscope, the multimeter, the signal source, and the microwave comprehensive tester; the microwave switch group and the microwave input port are connected to the microwave component; the industrial control computer is connected to the power module through a PPI cable; the industrial control computer is connected to the oscilloscope, the multimeter, the signal source, and the microwave comprehensive tester through an RS232 bus. The present invention realizes automatic control of radar radio frequency lines; simulates radar transmitting radio frequency signals, realizes automatic and rapid detection of radar receiver performance, helps to accurately and reliably measure radar equipment performance and quickly locate faults, thereby effectively extending the radar reliable guarantee time.

Description

Technical Field

[0001] The present invention relates to the field of radar testing technology, and in particular to a radar comprehensive testing platform. Background Art

[0002] Radar is a complex electronic system that widely uses large-scale integrated circuits, high-performance smart chips and computer bus technology. It has an internal radio frequency of up to 10GHz and an intermediate frequency circuit system of 30Hz. It is highly professional, integrated and technologically advanced. When radar support personnel perform tasks such as radar equipment performance testing, parameter adjustment, regular maintenance and fault detection, they need to consider issues such as which instrument to use, what mode or range to use, and what measurement methods or steps to take.

[0003] The existing radar testing method generally uses general test instruments, such as microwave comprehensive testers, spectrum analyzers, high-performance oscilloscopes, desktop multimeters and other instruments. These supporting radar detection instruments generally have objective problems such as many types, complex operations, and lack of necessary accessories, which makes some radar test researchers dare not use them, are not allowed to use them, and have complex instruments that are not durable. The idle rate is high, which seriously affects the detection and maintenance of radar equipment. The existing test tools cannot achieve seamless docking with radars, cannot meet the rapid detection training and maintenance guarantee of radar performance, and affect the ability of radar operators and maintenance personnel to analyze and solve problems.

[0004] Therefore, the existing technology needs to be improved. Summary of the invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a radar comprehensive test platform to solve the problems existing in the prior art.

[0006] According to one aspect of an embodiment of the present invention, a radar comprehensive test platform is disclosed, comprising:

[0007] Power module, microwave switch group and microwave input port, microwave components, industrial control computer, oscilloscope, multimeter, signal source, microwave comprehensive tester;

[0008] The power supply module is connected to the microwave switch group and the microwave input port, the industrial computer, the oscilloscope, the multimeter, the signal source, and the microwave comprehensive tester, and is used to supply power to the industrial computer, the microwave switch group and the microwave input port, the oscilloscope, the multimeter, the signal source, and the microwave comprehensive tester. The power supply module is externally connected to the mains, and after voltage conversion, the alternating current is converted into direct current of a corresponding voltage and output to the corresponding equipment;

[0009] The microwave switch group and the microwave input port are connected to the microwave component and are used to receive microwave signals from the microwave component to achieve automatic program-controlled switching of multi-channel radio frequency signals and power measurement signals;

[0010] The microwave component is connected to an external radar device to be tested, so as to complete the signal power matching between the radar transmitter and receiver and the device;

[0011] The industrial control computer is connected to the power module via a PPI cable, and is used to set the working parameters of the power module and receive power from the power module;

[0012] The industrial control computer is connected to the oscilloscope, multimeter, signal source and microwave comprehensive tester through RS232 bus to realize control of the oscilloscope, multimeter, signal source and microwave comprehensive tester and read back test data;

[0013] The oscilloscope is used to observe the waveforms and measure the parameters of the radar 30MHz intermediate frequency signal, the low-frequency video signal and the low-frequency signal;

[0014] The multimeter is used for accurate data measurement of radar parameters;

[0015] The signal source is used to simulate a radar frequency signal below 30 MHz according to test requirements, and to provide a simulated radar rectangular modulation pulse when performing an index test on a radar receiver;

[0016] The microwave comprehensive tester is used to measure the X-band radar transmission pulse power, transmission pulse operating frequency, and radio frequency signal spectrum, simulate the radio frequency pulses transmitted by the radar, and test the radar receiver sensitivity index.

[0017] In another embodiment of the radar comprehensive test platform according to the present invention, the power supply module includes:

[0018] Mains interface, relay switch group, PLC unit, switching power supply;

[0019] The mains power interface is used to connect the mains power and output the mains power to the relay switch group, the PLC unit, and the switching power supply;

[0020] The relay switch group is connected to the PLC unit and the industrial control computer, and under the control of the PLC unit, performs multi-channel power supply and supplies power to the industrial control computer;

[0021] The PLC unit controls the multi-channel power supply of the relay switch group, and controls the relay switch group to supply power and cut off power to the microwave comprehensive tester, oscilloscope, multimeter, and signal source through a programmable control method;

[0022] The switching power supply is connected to the PLC unit, the microwave switch group and the microwave input port, and is used to convert the mains power into direct current and supply power to the PLC unit, the microwave switch group and the microwave input port.

[0023] In another embodiment of the radar integrated test platform according to the present invention, the power module includes: an instrument working indicator light, a test platform working indicator light, an instrument working control button, a measuring button, a working timing display screen and a main power switch;

[0024] The instrument operation control button is used to manually control the power supply and power off of the microwave comprehensive tester, oscilloscope, multimeter, and signal source during debugging;

[0025] The test platform working indicator light is used to indicate the working status of the test platform;

[0026] The instrument operation control button is used to manually control the operation of the microwave comprehensive tester, oscilloscope, multimeter, and signal source.

[0027] The measuring button is used to manually control the operation of the microwave switch group and the microwave input port during debugging, and complete the manual switching operation of the microwave switch group and the microwave input port;

[0028] The working time display screen is used to time the working time of the test platform;

[0029] The main power switch is used to control the supply and disconnection of the mains power.

[0030] In another embodiment of the radar comprehensive test platform according to the present invention, the microwave component comprises:

[0031] Directional couplers, coaxial attenuators, coaxial isolators, and RF cables;

[0032] The directional coupler cooperates with the coaxial attenuator to achieve signal power matching between the radar transmitter and receiver and the device;

[0033] The coaxial isolator is connected to the coaxial attenuator;

[0034] The radio frequency cable is connected to the radar signal, the microwave switch group and the microwave input port respectively, and is used to output the radar signal to the microwave switch group and the microwave input port after power matching.

[0035] In another embodiment of the radar integrated test platform according to the present invention, the switching power supply outputs a DC power supply including: 5V 2A DC, 24V 1A DC, and 24V 2A DC;

[0036] The 5V 2A DC and 24V 1A DC are output to the microwave switch group and the microwave input port;

[0037] The 24V 2A DC power is output to the PLC unit.

[0038] In another embodiment of the radar comprehensive test platform based on the present invention, the relay switch group includes: four Omron +24V relays, which respectively output four power supply signals to power the microwave comprehensive tester, oscilloscope, multimeter, and signal source.

[0039] In another embodiment of the radar comprehensive test platform according to the present invention, the microwave switch group and the microwave input port include:

[0040] A detector diode power sensor, one end of which is connected to a microwave comprehensive tester, and the other end of which is connected to a power module;

[0041] The detector diode power probe has a detector circuit therein for outputting the envelope of a radio frequency signal to be measured.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] The radar comprehensive test platform of the present invention is connected to the radar waveguide through a microwave component, realizes automatic program-controlled switching of multi-channel radio frequency signals and power measurement signals through a microwave switch group and a microwave input port, supplies power to various devices in the platform through a power module, and controls the operation of various devices through an industrial control computer, thereby realizing automatic control of radar radio frequency lines; simulating the radio frequency signal transmitted by the radar, realizing automatic and rapid detection of the performance of the radar receiver, facilitating accurate and reliable measurement of the performance of the radar equipment and rapid fault location, thereby effectively extending the reliable guarantee time of the radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings used in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a structural schematic diagram of an embodiment of the radar comprehensive test platform of the present invention.

[0046] Figure 2 It is a working principle diagram of another embodiment of the radar comprehensive test platform of the present invention.

[0047] In the figure: 1 power module, 2 microwave switch group and microwave input port, 3 microwave component, 4 industrial control computer, 5 oscilloscope, 6 multimeter, 7 signal source, 8 microwave comprehensive tester. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0049] A radar comprehensive test platform provided by the present invention is described in more detail below in conjunction with the accompanying drawings and embodiments.

[0050] Figure 1 FIG. 1 is a schematic diagram of a structure of an embodiment of a radar integrated test platform of the present invention. Figure 1 As shown, the radar comprehensive test platform of this embodiment includes:

[0051] Power module 1, microwave switch group and microwave input port 2, microwave component 3, industrial control computer 4, oscilloscope 5, multimeter 6, signal source 7, microwave comprehensive tester 8;

[0052] The power module 1 is connected to the microwave switch group and the microwave input port 2, the industrial control computer 4, the oscilloscope 5, the multimeter 6, the signal source 7, and the microwave comprehensive tester 8, and is used to supply power to the industrial control computer 4, the microwave switch group and the microwave input port 2 and the oscilloscope 5, the multimeter 6, the signal source 7, and the microwave comprehensive tester 8. The power module 1 is externally connected to the mains, and after voltage conversion, the alternating current is converted into direct current of a corresponding voltage and output to the corresponding equipment;

[0053] The microwave switch group and the microwave input port 2 are connected to the microwave component 3 to receive microwave signals from the microwave component 3 and realize automatic program-controlled switching of multi-channel radio frequency signals and power measurement signals;

[0054] The microwave component 3 is connected to the external radar device to be tested, so as to complete the signal power matching between the radar transmitter and receiver and the device;

[0055] The industrial control computer 4 is connected to the power module 1 via a PPI cable, and is used to set the working parameters of the power module 1 and receive power from the power module 1;

[0056] The industrial control computer 4 is connected to the oscilloscope 5, the multimeter 6, the signal source 7 and the microwave comprehensive tester 8 via the RS232 bus to control the oscilloscope 5, the multimeter 6, the signal source 7 and the microwave comprehensive tester 8 and read back the test data;

[0057] The oscilloscope 5 is used for waveform observation and parameter measurement of the radar 30MHz intermediate frequency signal and the low-frequency video signal and low-frequency signal;

[0058] The multimeter 6 is used for accurate data measurement of radar parameters;

[0059] The signal source 7 is used to simulate a frequency signal of a radar frequency below 30 MHz according to the test requirements, and to provide a simulated radar rectangular modulation pulse when performing an index test on the radar receiver;

[0060] The microwave comprehensive tester 8 is used to measure the X-band radar transmission pulse power, transmission pulse operating frequency, and radio frequency signal spectrum, simulate the radio frequency pulse transmitted by the radar, and test the radar receiver sensitivity index.

[0061] The power module 1 comprises:

[0062] Mains interface, relay switch group, PLC unit, switching power supply;

[0063] The mains power interface is used to connect the mains power and output the mains power to the relay switch group, the PLC unit, and the switching power supply;

[0064] The relay switch group is connected to the PLC unit and the industrial control computer 4, and under the control of the PLC unit, performs multi-channel power supply and supplies power to the industrial control computer 4;

[0065] The PLC unit controls the multi-channel power supply of the relay switch group, and controls the relay switch group to supply and cut off the power to the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 through a programmable control method;

[0066] The switching power supply is connected to the PLC unit, the microwave switch group and the microwave input port 2 , and is used to convert the mains power into direct current and supply power to the PLC unit, the microwave switch group and the microwave input port 2 .

[0067] The power module 1 includes: an instrument working indicator light, a test platform working indicator light, an instrument working control button, a measuring button, a working timing display screen and a main power switch;

[0068] The instrument operation control button is used to manually control the power supply and power off of the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 during debugging;

[0069] The test platform working indicator light is used to indicate the working status of the test platform;

[0070] The instrument operation control button is used to manually control the operation of the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7.

[0071] The measuring button is used to manually control the operation of the microwave switch group and the microwave input port 2 during debugging, and complete the manual switching operation of the microwave switch group and the microwave input port 2;

[0072] The working time display screen is used to time the working time of the test platform;

[0073] The main power switch is used to control the supply and disconnection of the mains power.

[0074] In a specific embodiment, there are four instrument working indicator lights, one test platform working indicator light, four instrument working control buttons, four measuring buttons, one working timing display screen, and one main power switch. The four instrument working control buttons are used to manually control the power supply of the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 during debugging; the four measuring buttons are used to manually control the operation of the microwave switch group and the microwave input port 2 during debugging, and complete the manual switching operation of a specific microwave switch group and the microwave input port 2; a main power switch is used to control the AC power supply of the PLC unit and the switching power supply to realize the power supply control of the small switch power; the working timing is a digital timer of 220V AC, which is linked with the main power switch to realize the irreversible working timing of the system; in order to reduce the insertion loss and standing wave ratio caused by the transmission of the radio frequency signal in the radio frequency cable, customized semi-rigid radio frequency cables are used between the microwave switches and between the microwave switch and the radio frequency socket.

[0075] When the main power switch of the power module 1 is turned on, 220V / 50Hz AC power is added to the relay switch group, the PLC unit and the switch power supply. At this time, the instrument working indicator light is on. In another embodiment of the above-mentioned radar comprehensive test platform of the present invention, the DC power output by the switch power supply includes: 5V 2A DC, 24V 1A DC, 24V 2A DC; the 5V 2A DC and 24V 1A DC are output to the microwave switch group and the microwave input port 2; the 24V 2A DC is output to the PLC unit. The PLC unit and the switch power supply are working, and the relay switch group, the microwave switch group and the microwave input port 2 are in standby state.

[0076] In order to complete the automatic power-on management of test instrument resources and realize the automatic docking of test instrument resources, especially the microwave comprehensive tester 8 with various signal cables, RF attenuators, microwave switch groups and microwave input ports 2, a combined control mode of a PLC unit and an industrial control computer 4 is adopted to realize the intelligent and automated testing of the radar test platform.

[0077] The industrial control computer 4 is programmed with LabWindows / CVI software to realize the control of the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 resources and the test data reading back. The communication interfaces between the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 and the industrial control computer 4 are all RS232 ports. The software programming realizes the control of the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 resources by the industrial control computer 4 and the test data reading back using the serial communication mode. The microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 resources are each allocated a serial port, realizing one-to-many communication between the computer and the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 resources.

[0078] The PLC unit adopts Siemens PLC control module CPU226. The PLC unit controls the relay switch group to provide 4 programmable power supply modes, realizing intelligent control of power supply and power failure of microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7. In order to prevent the wear of the RF cable head caused by human factors, or the damage of the test instrument and radar components caused by connection errors, the PLC unit is used to complete the program-controlled transfer of the microwave switch group and the microwave input port 2. The PLC unit adopts two seamless conversion modes: manual control and program control. The manual control is mainly realized by the buttons on the front panel of the test platform to realize combined control, which is mainly used for debugging the test platform or individual manual control of instrument resources. The program control communicates with the industrial control computer 4 through the PPI cable, and realizes the computer configuration control of the PLC unit through computer programming of King View software.

[0079] The microwave switch group and microwave input port 2 include a microwave switch group and a microwave input port;

[0080] The microwave switch group includes a series of microwave switches, microwave attenuators, and radio frequency cables that meet the requirements of X-band signal transmission;

[0081] The microwave switch group and the microwave input port 2 include:

[0082] A detector diode power sensor, one end of which is connected to a microwave comprehensive tester 8, and the other end is connected to a power module 1;

[0083] The detector diode power probe has a detector circuit therein for outputting the envelope of a radio frequency signal to be measured.

[0084] The microwave switch group mainly realizes the automatic program-controlled switching of three RF signals and one power measurement signal; since the transmission signal frequency of the radar is very high, the RF cable adopts semi-rigid customized RF cable. These cables not only consider meeting the performance requirements, but also consider the matching problem of the RF cable head. The RF cable is respectively connected in sections on the front panel of the microwave comprehensive tester 8, inside and outside the power module 1. When the microwave switch controlled by the industrial control computer 4 is in different positions, the microwave device and the RF line are automatically switched according to the specific test tasks and steps, which prevents the wear and damage of the microwave device and the RF cable head caused by human factors and improves the reliability of the system.

[0085] The cable of the detector diode power probe is a special cable, one end of which is connected to the front panel of the microwave comprehensive tester 8, and the other end is connected to the rear panel of the power module 1, and is connected to the detector diode power probe through a conversion socket. The detector diode power probe has a detection circuit inside, which outputs the envelope of the RF signal under test, and is connected to the RF envelope BNC output end of the rear panel of the power module 1 through a RF cable; the RF port of the detector diode power probe is connected to the COM end of the second microwave switch through a 30dB attenuator; before measuring the pulse power, the instrument needs to be calibrated first. After the industrial control computer 4 controls the COM end of the second microwave switch to connect with the two ends, the calibration command is issued according to the industrial control computer 4 to realize the power calibration of the instrument and the detector diode power probe in the frequency band of the measured signal.

[0086] The detector diode power sensor can effectively suppress common mode noise interference. The sensor has built-in E2PROM and thermistor. Together with the 50MHz calibration source, it has the function of digital detection curve calibration and correction. When performing frequency measurement, there is no need to use the detector diode power sensor. It can be directly added to the channel and control unit through the RF port after appropriate RF attenuation.

[0087] The microwave assembly 3 comprises:

[0088] Directional couplers, coaxial attenuators, coaxial isolators, and RF cables;

[0089] The directional coupler cooperates with the coaxial attenuator to achieve signal power matching between the radar transmitter and receiver and the device;

[0090] The coaxial isolator is connected to the coaxial attenuator;

[0091] The radio frequency cable is connected to the radar signal, the microwave switch group and the microwave input port 2 respectively, and is used to output the radar signal to the microwave switch group and the microwave input port 2 after power matching.

[0092] like Figure 2As shown, the working principle of the microwave component 3 is as follows: the radar radio frequency electromagnetic wave is converted and attenuated into a radio frequency pulse through the radar waveguide and the microwave component 3, and enters the test platform through the RFIN end as a sample signal of the radar transmitting radio frequency pulse. The sample signal may exceed the measurement range of the microwave comprehensive tester 8, causing damage to the microwave comprehensive tester 8. Therefore, a 20dB coaxial attenuator is added between the two microwave switches. In order to detect the sensitivity of the radar receiver, the microwave comprehensive tester 8 simulates the output of the X-band radar pulse signal under the control of the signal source output modulated pulse and enters the radar waveguide system through the RFOUT end of the rear panel of the power module 1 and the microwave component.

[0093] The microwave component 3 is connected to the radar waveguide system as a hard-connected component and is integrated with the radar, but it does not affect the normal operation of the radar; two X-band RF cables are led out from the microwave component 3 as test points for the performance indicators of the radar transceiver and are connected to the corresponding RF ports of the radar test platform; in the microwave component 3, the directional coupler is a RF attenuation device for directional transmission of electromagnetic waves, and cooperates with the coaxial attenuator to ensure signal power matching between the radar transceiver and the microwave comprehensive tester 8 during performance testing.

[0094] The relay switch group includes: four Omron +24V relays, which respectively output four power supply signals to supply power to the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7.

[0095] In the specific implementation process, according to the test task requirements, the function of the current automatic test is selected. For the automatic test function of the microwave comprehensive tester 8, parameters such as power calibration and power measurement, frequency measurement, microwave signal source setting and output can be selected. For the automatic test function of the oscilloscope 5, the peak-to-peak value, frequency value, positive half-cycle time, one-cycle time and other parameters of the CH1 and CH2 channels can be selected to read automatically. The CH3 and CH4 channels of the oscilloscope itself do not have the program-controlled automatic measurement function, and can be manually debugged when necessary; the multimeter 6 automatic test has three optional parameters such as AC voltage, DC voltage, and resistance. Before measuring, the gear position of this measurement should be selected first, and the correct test line connection should be established. The measurement button and reading window of the selected parameter can realize this automatic measurement, and the measurement button and reading window of the unselected parameter are gray, and do not have the operation function. After the test parameters of the microwave comprehensive tester 8, oscilloscope 5, and multimeter 6 are selected, under the premise of normal line connection, the measurement and readback operation of the test data can be performed, and the current measurement value will be displayed in the corresponding test window.

[0096] In the specific implementation process, the microwave comprehensive tester 8, oscilloscope 5, multimeter 6, and signal source 7 are respectively AV4942 microwave comprehensive tester, Tektronix TPS2024 oscilloscope, FLUKE8845A desktop multimeter, and two-channel arbitrary wave generator; the microwave component 3 includes a directional coupler, a coaxial attenuator, an accessory cable, a probe, etc.

[0097] In a specific embodiment, the technical indicators of the radar comprehensive test platform are:

[0098] The peak power range of the input RF signal is -20dBm to +20dBm, and the transmit power measurement error is less than 2.2dBm; the RF frequency range is 8.0GHz to 18GHz, and the frequency measurement error is less than 1×10-1;

[0099] Output RF signal peak power -20dBm ~ +0dBm, RF frequency is 9.37GHz, pulse width is 2μs;

[0100] The signal waveform measurement is four-channel, bandwidth is 200MHz, sampling rate is 2GS / s, and the automatic measurement is two-channel;

[0101] It has three automatic measurement functions: AC voltage, DC voltage and resistance, with a measurement accuracy of six and a half digits.

[0102] The above is a detailed introduction to a radar integrated test platform provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

[0103] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A radar comprehensive test platform, characterized in that: include: Power module, microwave switch group and microwave input port, microwave components, industrial control computer, oscilloscope, multimeter, signal source, microwave comprehensive tester; The power supply module is connected to the microwave switch group and the microwave input port, the industrial computer, the oscilloscope, the multimeter, the signal source, and the microwave comprehensive tester, and is used to supply power to the industrial computer, the microwave switch group and the microwave input port, the oscilloscope, the multimeter, the signal source, and the microwave comprehensive tester. The power supply module is externally connected to the mains, and after voltage conversion, the alternating current is converted into direct current of a corresponding voltage and output to the corresponding equipment; The microwave switch group and the microwave input port are connected to the microwave component and are used to receive microwave signals from the microwave component to achieve automatic program-controlled switching of multi-channel radio frequency signals and power measurement signals; The microwave component is connected to an external radar device to be tested, so as to complete the signal power matching between the radar transmitter and receiver and the device; The industrial control computer is connected to the power module via a PPI cable, and is used to set the working parameters of the power module and receive power from the power module; The industrial control computer is connected to the oscilloscope, multimeter, signal source and microwave comprehensive tester through RS232 bus to realize control of the oscilloscope, multimeter, signal source and microwave comprehensive tester and read back test data; The oscilloscope is used to observe the waveforms and measure the parameters of the radar 30MHz intermediate frequency signal, the low-frequency video signal and the low-frequency signal; The multimeter is used for accurate data measurement of radar parameters; The signal source is used to simulate a radar frequency signal below 30 MHz according to test requirements, and to provide a simulated radar rectangular modulation pulse when performing an index test on a radar receiver; The microwave comprehensive tester is used to measure the X-band radar transmission pulse power, transmission pulse operating frequency, and radio frequency signal spectrum, simulate the radio frequency pulse transmitted by the radar, and test the radar receiver sensitivity index; The power module comprises: Mains interface, relay switch group, PLC unit, switching power supply; The mains power interface is used to connect the mains power and output the mains power to the relay switch group, the PLC unit, and the switching power supply; The relay switch group is connected to the PLC unit and the industrial control computer, and under the control of the PLC unit, performs multi-channel power supply and supplies power to the industrial control computer; The PLC unit controls the multi-channel power supply of the relay switch group, and controls the relay switch group to supply power and cut off power to the microwave comprehensive tester, oscilloscope, multimeter, and signal source through a programmable control method; The switching power supply is connected to the PLC unit, the microwave switch group and the microwave input port, and the switching power supply is used to convert the mains power into direct current and supply power to the PLC unit, the microwave switch group and the microwave input port; The power module includes: an instrument working indicator light, a test platform working indicator light, an instrument working control button, a measuring button, a working timing display screen and a main power switch; The instrument operation control button is used to manually control the power supply and power off of the microwave comprehensive tester, oscilloscope, multimeter, and signal source during debugging; The test platform working indicator light is used to indicate the working status of the test platform; The instrument operation control button is used to manually control the operation of the microwave comprehensive tester, oscilloscope, multimeter, and signal source. The measuring button is used to manually control the operation of the microwave switch group and the microwave input port during debugging, and complete the manual switching operation of the microwave switch group and the microwave input port; The working time display screen is used to time the working time of the test platform; The main power switch is used to control the power supply and power cut of the mains; The microwave switch group and the microwave input port include: A detector diode power sensor, one end of which is connected to a microwave comprehensive tester, and the other end of which is connected to a power module; The detector diode power probe has a detector circuit therein for outputting the envelope of a radio frequency signal to be measured.

2. The radar comprehensive test platform according to claim 1, characterized in that: The microwave assembly comprises: Directional couplers, coaxial attenuators, coaxial isolators, and RF cables; The directional coupler cooperates with the coaxial attenuator to achieve signal power matching between the radar transmitter and receiver and the device; The coaxial isolator is connected to the coaxial attenuator; The radio frequency cable is connected to the radar signal, the microwave switch group and the microwave input port respectively, and is used to output the radar signal to the microwave switch group and the microwave input port after power matching.

3. The radar comprehensive test platform according to claim 1, characterized in that: The switching power supply output DC power supply includes: 5V 2A DC, 24V 1A DC, 24V 2A DC; The 5V 2A DC and 24V 1A DC are output to the microwave switch group and the microwave input port; The 24V 2A DC power is output to the PLC unit.

4. The radar comprehensive test platform according to claim 1, characterized in that: The relay switch group includes: four Omron +24V relays, which respectively output four power supply signals to supply power to the microwave comprehensive tester, oscilloscope, multimeter and signal source.

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