CN115314074B - Comprehensive test method for TR (transmitter-receiver) component performance - Google Patents
Comprehensive test method for TR (transmitter-receiver) component performance Download PDFInfo
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- 239000011159 matrix material Substances 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims description 7
- 230000010363 phase shift Effects 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 5
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- 238000011056 performance test Methods 0.000 abstract description 11
- 239000000306 component Substances 0.000 description 49
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007619 statistical method Methods 0.000 description 4
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to a test method for comprehensive test of performance of a TR (transmitter and receiver) component, which comprises the steps of testing the characteristics of a receiving channel of the TR component and testing the characteristics of a transmitting channel of the TR component, wherein a tested piece can complete automatic test of selected parameters through single connection of a test fixture. For different test states and test parameters, the TR component performance test device utilizes a configured switch box to complete connection of a tested piece and different test instruments.
Description
Technical Field
The invention belongs to the technical field of microwave radio frequency, and particularly relates to a method for testing comprehensive performance of a TR (transmitter-receiver) component.
Background
The TR module, i.e., the transmit/receive module, is a core component of phased array radar and modern communications, and is widely developed and used. The general TR component comprises a large power amplification, high gain receiving, digital phase shifting and control circuit and the like, and has great engineering practical significance for performing analog test on performance indexes.
Test systems for TR modules have been developed, but most test systems can only perform performance test for TR modules at a certain frequency, and for modules at different frequencies, different test software needs to be designed and hardware devices need to be properly modified, which is very inconvenient and high in cost.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for testing the comprehensive performance of the TR assembly, which has the characteristic of universality, can be used for testing the performance of the TR assembly with different frequencies, adopts a mode of combining hardware and software to measure and scientifically evaluate the comprehensive parameters of the TR assembly, and provides conditions for engineering design and teaching demonstration.
The invention relates to a test system for the comprehensive performance of a TR component, which comprises a test instrument, a switch matrix, a general control computer, a TR component state controller and a programmable power supply, wherein,
The master control computer is respectively connected with the test instrument, the switch matrix, the TR component state controller and the programmable power supply and is used for sending tasks such as system control instructions, data reading and analysis, test result output and the like;
The test instrument comprises a plurality of universal test instrument components;
the programmable power supply is used for carrying out power management on the whole test system and feeding back voltage and current to the general control computer in real time;
further, the switch matrix comprises 10 single pole 4 throw switches, 6 single pole double throw switches, a power amplifier, an attenuator bank, a power supply and a control module, wherein,
The method comprises the following steps that 4 contacts of a first single-pole 4-throw switch are respectively connected with a source characteristic connecting end, the source characteristic connecting end is an excitation signal generated by a signal source, a stationary end is connected to a stationary end of the first single-pole double-throw switch after passing through an attenuator, and one contact of the first single-pole double-throw switch is connected with one contact of a second single-pole double-throw switch;
The fixed end of the second single-pole double-throw switch is connected with the fixed end of the third single-pole double-throw switch, one contact of the third single-pole double-throw switch is connected with the input end of the power amplifier, and the other contact of the third single-pole double-throw switch is connected with one contact of the fourth single-pole double-throw switch;
The other contact of the fourth single-pole double-throw switch is connected with the output end of the power amplifier, the stationary end of the fourth single-pole double-throw switch is connected with the stationary end of the second single-pole 4-throw switch after passing through an attenuator, and the 4 contacts of the second single-pole 4-throw switch are connected with the EUT input end, namely the TR component;
The other contact of the first single-pole double-throw switch and the other contact of the second single-pole double-throw switch are respectively connected to one contact of a fifth single-pole double-throw switch and a sixth single-pole double-throw switch, and the other contacts of the fifth single-pole double-throw switch and the sixth single-pole double-throw switch are mutually connected;
The fixed end of the fifth single-pole double-throw switch is connected with the fixed end of the third single-pole 4-throw switch, 4 contacts of the third single-pole 4-throw switch are respectively connected to the fixed ends of the fourth to seventh single-pole 4-throw switches after passing through attenuators with the same decibels, and the contacts of the fourth to seventh single-pole 4-throw switches are respectively connected with a test instrument;
The fixed end of the sixth pole double-throw switch is connected with the fixed end of the eighth single-pole 4-throw switch, one contact of the eighth single-pole 4-throw switch is connected to one contact of the ninth single-pole 4-throw switch, the other three contacts are respectively connected to attenuators with different decibels, and the other end of each attenuator is respectively connected with the other three contacts of the ninth single-pole 4-throw switch;
the fixed end of the ninth single-pole 4-throw switch is connected with the fixed end of the tenth single-pole 4-throw switch after passing through the attenuator, the contact of the tenth single-pole 4-throw switch is connected with a receiving characteristic connecting end, and the receiving characteristic connecting end is an analog receiving test signal provided by a signal source.
As a preferred embodiment of the present application, the test meter comprises a signal analyzer, a vector network analyzer (including a signal source), a spectrometer, a current probe device, an oscilloscope, and a power meter.
Furthermore, the general control computer is also used for managing the database of the whole test system and completing the operations of data query playback, statistical analysis, data export and report generation.
Based on the test system, the application also provides a test method for the performance of the TR component, which comprises the steps of testing the characteristics of a receiving channel of the TR component and testing the characteristics of a transmitting channel of the TR component,
For the characteristic test of the receiving channel of the TR assembly, firstly, a time sequence signal and a control signal used in the actual work of the TR assembly are generated through a beam control module, and the time sequence signal and the control signal are sent into the TR assembly and are controlled to work in a receiving mode;
Then testing working parameters of the TR assembly in different attenuation and phase shift states by using a test instrument, obtaining receiving indexes of the TR assembly by a calculation module, and finally collecting and recording data by an acquisition module;
for the characteristic test of the transmission channel of the TR assembly, firstly, a time sequence signal and a control signal used in the actual work of the TR assembly are generated through a beam control module, and the time sequence signal and the control signal are sent into the TR assembly and are controlled to work in a receiving mode;
and then testing the TR component output index by using a test instrument, calculating the consistency of the transmission power and the total efficiency of the component according to the acquired output index data, and finally acquiring and recording the data by using an acquisition module.
As a preferred embodiment of the present application, the test meter comprises one or a combination of more of a vector network analyzer, a power meter, a spectrometer, a current probe device, an oscilloscope.
In a preferred embodiment of the present application, in the test of the characteristics of the receiving channel, the operation index of the TR module includes a receiving gain, a receiving phase, an input/output port standing wave, a receiving input compression point, and a load state receiving isolation value.
In a preferred embodiment of the present application, in the test of the characteristics of the receiving channel, the receiving index of the TR module includes in-band flatness of receiving gain, receiving gain consistency, receiving phase consistency, attenuation precision, attenuation spurious phase modulation, nonlinear phase error of the receiving channel, maximum phase shift error, and spurious amplitude modulation index of the phase shifter.
As a preferred embodiment of the present application, in the transmission channel characteristic test, the output index includes an output peak power, a transmission power in-band fluctuation, a transmission signal harmonic suppression, a transmission power envelope peak drop, and a transmit-receive conversion time index.
As a preferred embodiment of the application, the test method further comprises offline analysis and statistics of the test data.
The beneficial effects are that:
by adopting the test system and the test method provided by the application, the performance of the TR component can be effectively tested;
The switch matrix module has the characteristics of reasonable structure, stable and reliable operation, simple and convenient operation and the like, and the switch matrix technology is applied to ensure the reliability, safety and stability of the system; the principle of ergonomics is fully considered, and the reliability, maintainability and usability are fully considered in the design process.
Under the framework structure of the whole TR component performance testing device, the hardware platform provides a standard infrastructure for each component, and ensures interconnection, intercommunication and interoperation among systems. On the premise of ensuring that the system index is met, the system structure and the interface have good openness, compatibility and expandability.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a TR component performance test apparatus;
FIG. 2 is a diagram of a system architecture of a TR assembly performance test device;
fig. 3 is a schematic diagram of a switch matrix.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1:
the invention relates to a TR component performance test system, which comprises the following components and working principles:
The TR component performance testing device consists of testing software, a testing instrument, a switch box, a TR component state controller and the like. The device completes the automatic test of the full parameters of the TR component under the control of system software. The tested piece can complete the automatic test of the selected parameters by single connection through the test connecting cable. For different test states and test parameters, the TR component performance test device completes connection of the tested TR component and different test instruments by using a configured switch matrix under the control of general control computer software.
As shown in fig. 2, which is a block diagram of a test system architecture, the invention is a TR module comprehensive performance test system, the test system comprises a test instrument, a switch matrix, a general control computer, a TR module state controller and a programmable power supply, wherein,
The master control computer is respectively connected with the test instrument, the switch matrix, the TR component state controller and the programmable power supply and is used for sending tasks such as system control instructions, data reading and analysis, test result output and the like;
The test instrument comprises a plurality of universal test instrument components;
the programmable power supply is used for carrying out power management on the whole test system and feeding back voltage and current to the general control computer in real time;
The switch matrix is an important component for connecting the tested TR assembly with the performance index related test instrument. When the indexes such as waveform, frequency, output power, standing wave and receiving sensitivity are required to be detected, the switch matrix can be automatically connected with corresponding instruments and meters according to the instruction issued by the main control receiver, and detection data are automatically recorded and reported to the main control computer.
The total control computer is used as a central center of the whole TR component performance testing device, and is communicated with a testing instrument, a switch matrix, a component controller, a programmable power supply and the like to finish tasks such as system control instruction issuing, data reading and analysis, test result output and the like. And meanwhile, the database of the whole test system is managed, and operations such as data query playback, statistical analysis, data export, report generation and the like can be completed.
The test instrument consists of a plurality of universal test instruments, and the corresponding test requirements are completed through a standard instrument interface and test results are generated. The test instrument involved is: a code scanning gun, a signal source, a signal analyzer, a vector network analyzer, an oscilloscope, a power meter and the like.
The TR component performance test device test instrument comprises: spectrum analyzer, oscilloscope, signal source, vector network analyzer, power meter, etc., specific model is shown in table 1 of the system section.
TABLE 1 TR component Performance test apparatus and Meter
The program-controlled power supply module is responsible for the power supply management of the whole test system, provides the power supply required by the assembly, and can display the voltage and the current in real time and feed back to the general control computer and the attached digital multimeter to display the power supply parameters.
As shown in fig. 3, the switch matrix comprises 10 single pole, 4 throw switches, 6 single pole, double throw switches, a power amplifier, an attenuator bank, a power supply and control module, wherein,
The 4 contacts of the first single pole 4 throw switch are respectively connected with a source characteristic connecting end, the source characteristic connecting end is an excitation signal generated by a signal source, and signal state software of the simulation test TR assembly generates excitation signals in various forms, such as waveform characteristics, scanning modes, repetition frequency and the like.
The fixed end is connected to the fixed end of the first single-pole double-throw switch after passing through an attenuator, the attenuator is 2dB, and one contact of the first single-pole double-throw switch is connected with one contact of the second single-pole double-throw switch;
The fixed end of the second single-pole double-throw switch is connected with the fixed end of the third single-pole double-throw switch, one contact of the third single-pole double-throw switch is connected with the input end of the power amplifier, and the other contact of the third single-pole double-throw switch is connected with one contact of the fourth single-pole double-throw switch;
The other contact of the fourth single-pole double-throw switch is connected with the output end of the power amplifier, the stationary end of the fourth single-pole double-throw switch is connected with the stationary end of the second single-pole 4-throw switch after passing through an attenuator, the attenuator is 1dB, and the 4 contacts of the second single-pole 4-throw switch are connected with the EUT input end, namely the TR component;
The other contact of the first single-pole double-throw switch and the other contact of the second single-pole double-throw switch are respectively connected to one contact of a fifth single-pole double-throw switch and a sixth single-pole double-throw switch, and the other contacts of the fifth single-pole double-throw switch and the sixth single-pole double-throw switch are mutually connected;
The fixed end of the fifth single-pole double-throw switch is connected with the fixed end of the third single-pole 4-throw switch, 4 contacts of the third single-pole 4-throw switch are respectively connected to the fixed ends of the fourth to seventh single-pole 4-throw switches after passing through attenuators with the same decibel, the 4 attenuators are all 2dB, and the contacts of the fourth to seventh single-pole 4-throw switches are respectively connected with a test instrument, namely a tested TR assembly test signal gating output end;
the fixed end of the sixth pole double-throw switch is connected with the fixed end of the eighth single-pole 4-throw switch, one contact of the eighth single-pole 4-throw switch is connected to one contact of the ninth single-pole 4-throw switch, the other three contacts are respectively connected to attenuators with different decibels, the other end of each attenuator is respectively connected with the other three contacts of the ninth single-pole 4-throw switch, wherein the first attenuator is 10dB, the second attenuator is 20dB, and the third attenuator is 30dB;
The fixed end of the ninth single-pole 4-throw switch is connected with the fixed end of the tenth single-pole 4-throw switch after passing through an attenuator, the attenuator is 2dB, the contact of the tenth single-pole 4-throw switch is connected with a receiving characteristic connecting end, and the receiving characteristic connecting end is an analog receiving test signal provided by a signal source.
The contacts of the switch are the contacts of the moving end in the switch.
Based on the switch matrix, different test instruments are connected in the system by software, and corresponding switches are gated according to test requirements, so that the detection function of the specific index of the TR component is realized.
The signal source provided in this embodiment is provided by a vector network analyzer or by other signal generating devices.
The switch matrix unit consists of Lei Diai high-performance switches and high-performance semisteel cables. Lei Diai series switches are optimized to maintain high-performance operation in a longer service life, and have the advantages of good switch standing wave performance, small loss and high repeatability. The outstanding radio frequency performance can still maintain the repeatability of the insertion loss of 0.03 dB after 1000 thousands of repeated switching; the maximum time of switch switching is 10Ms.
The switch matrix module has the characteristics of reasonable structure, stable and reliable work, simple and convenient operation and the like, and the design scheme follows the principle of 'advanced, practical, reliable and economical'. The structural design furthest references the related mature technical achievements, and an advanced software technology is applied to ensure the reliability, safety and stability of the system; fully considers the principle of man-machine engineering, is carefully designed and strictly controls the quality; reliability, maintainability and usability are fully considered in the design process.
As a preferred embodiment of the present application, the test meter comprises a signal analyzer, a vector network analyzer (including a signal source), a spectrometer, a current probe device, an oscilloscope, and a power meter.
Furthermore, the general control computer is also used for managing the database of the whole test system and completing the operations of data query playback, statistical analysis, data export and report generation.
Under the framework structure of the whole TR component performance testing device, the hardware platform provides a standard infrastructure for each component, and ensures interconnection, intercommunication and interoperation among systems. On the premise of ensuring that the system index is met, the system structure and the interface have good openness, compatibility and expandability. The TR assembly performance test apparatus composition is shown in fig. 1.
The invention uses the mode of combining hardware and software to measure and scientifically evaluate the comprehensive parameters of the TR assembly, and provides conditions for engineering design and teaching demonstration.
Example 2
Based on the test system, the application also provides a test method for the performance of the TR component, which comprises the steps of testing the characteristics of a receiving channel of the TR component and testing the characteristics of a transmitting channel of the TR component,
For the characteristic test of the receiving channel of the TR assembly, firstly, a time sequence signal and a control signal used in the actual work of the TR assembly are generated through a beam control module, and the time sequence signal and the control signal are sent into the TR assembly and are controlled to work in a receiving mode;
Then testing working parameters of the TR assembly in different attenuation and phase shift states by using a test instrument, obtaining receiving indexes of the TR assembly by a calculation module, and finally collecting and recording data by an acquisition module;
for the characteristic test of the transmission channel of the TR assembly, firstly, a time sequence signal and a control signal used in the actual work of the TR assembly are generated through a beam control module, and the time sequence signal and the control signal are sent into the TR assembly and are controlled to work in a receiving mode;
and then testing the TR component output index by using a test instrument, calculating the consistency of the transmission power and the total efficiency of the component according to the acquired output index data, and finally acquiring and recording the data by using an acquisition module.
As a preferred embodiment of the present application, the test meter comprises one or a combination of more of a vector network analyzer, a power meter, a spectrometer, a current probe device, an oscilloscope.
In a preferred embodiment of the present application, in the test of the characteristics of the receiving channel, the operation index of the TR module includes a receiving gain, a receiving phase, an input/output port standing wave, a receiving input compression point, and a load state receiving isolation value.
In a preferred embodiment of the present application, in the test of the characteristics of the receiving channel, the receiving index of the TR module includes in-band flatness of receiving gain, receiving gain consistency, receiving phase consistency, attenuation precision, attenuation spurious phase modulation, nonlinear phase error of the receiving channel, maximum phase shift error, and spurious amplitude modulation index of the phase shifter.
As a preferred embodiment of the present application, in the transmission channel characteristic test, the output index includes an output peak power, a transmission power in-band fluctuation, a transmission signal harmonic suppression, a transmission power envelope peak drop, and a transmit-receive conversion time index.
As a preferred embodiment of the application, the test method further comprises offline analysis and statistics of the test data.
3. TR component performance test device workflow
1) On the basis of system calibration, the general control computer sets the measurement parameters and state selection of each test instrument through LAN, and controls the radio frequency signal generator to generate microwave excitation signals such as microwave signal frequency, repetition period, pulse width, input power and the like;
2) The general control computer controls the on-off state of the microwave switch matrix through RS485/RS232, establishes a test channel from signal excitation to a test instrument, and realizes automatic switching of the test channel;
3) The general control computer controls the direct current power supply through the GPIB/serial port to generate various power supplies required by the tested component, and the tested component is powered on according to a specified time sequence;
4) The device communicates with a TR component controller through LAN/RS485, and issues test commands, including attenuation setting, phase shift setting, power supply control of a receiving and transmitting branch of the component and receiving and transmitting control of the component, so as to realize component wave control;
5) After the working environment of the tested piece is set, an excitation signal is connected to the input end of the component through the microwave switch matrix, and an output signal of the tested piece is connected to a corresponding testing instrument for one-time measurement. The general control computer acquires the tested data from the testing instrument through the LAN, carries out error correction, and stores the processed data into the database;
6) The test software of the general control computer processes the collected test data and component numbers (query playback, statistical analysis and the like) to give out required index information, and can derive the test data and generate a test report if necessary.
The invention uses the mode of combining hardware and software to measure and scientifically evaluate the comprehensive parameters of the TR assembly, and provides conditions for engineering design and teaching demonstration.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is inherent to. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. In addition, the parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of the corresponding technical solutions in the prior art, are not described in detail, so that redundant descriptions are avoided.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The comprehensive test method for the performance of the TR component is characterized by being realized based on the following test system:
The test system comprises a test instrument, a switch matrix, a general control computer, a TR component state controller and a programmable power supply, wherein,
The master control computer is respectively connected with the test instrument, the switch matrix, the TR component state controller and the programmable power supply, and sends system control instructions, data reading and analysis and output tasks of test results;
The test instrument comprises a plurality of universal test instrument components;
the programmable power supply is used for carrying out power management on the whole test system and feeding back voltage and current to the general control computer in real time;
The switch matrix connects the TR component with the corresponding test instrument according to the instruction issued by the master control computer, records the detection data and sends the detection data to the master control computer;
The switch matrix comprises 10 single pole 4 throw switches, 6 single pole double throw switches, a power amplifier, an attenuator group, a power supply and a control module, wherein,
The method comprises the steps that 4 contacts of a first single-pole 4-throw switch are respectively connected with an active characteristic connecting end, the active characteristic connecting end is an excitation signal generated by a signal source, an immobile end is connected to an immobile end of the first single-pole double-throw switch after passing through an attenuator, and one contact of the first single-pole double-throw switch is connected with one contact of a second single-pole double-throw switch;
The fixed end of the second single-pole double-throw switch is connected with the fixed end of the third single-pole double-throw switch, one contact of the third single-pole double-throw switch is connected with the input end of the power amplifier, and the other contact of the third single-pole double-throw switch is connected with one contact of the fourth single-pole double-throw switch;
The other contact of the fourth single-pole double-throw switch is connected with the output end of the power amplifier, the stationary end of the fourth single-pole double-throw switch is connected with the stationary end of the second single-pole 4-throw switch after passing through an attenuator, and the 4 contacts of the second single-pole 4-throw switch are connected with the EUT input end, namely the TR component;
The other contact of the first single-pole double-throw switch and the other contact of the second single-pole double-throw switch are respectively connected to one contact of a fifth single-pole double-throw switch and a sixth single-pole double-throw switch, and the other contacts of the fifth single-pole double-throw switch and the sixth single-pole double-throw switch are mutually connected;
The fixed end of the fifth single-pole double-throw switch is connected with the fixed end of the third single-pole 4-throw switch, 4 contacts of the third single-pole 4-throw switch are respectively connected to the fixed ends of the fourth to seventh single-pole 4-throw switches after passing through attenuators with the same decibels, and the contacts of the fourth to seventh single-pole 4-throw switches are respectively connected with a test instrument;
The fixed end of the sixth single-pole double-throw switch is connected with the fixed end of the eighth single-pole 4-throw switch, one contact of the eighth single-pole 4-throw switch is connected to one contact of the ninth single-pole 4-throw switch, the other three contacts are respectively connected to attenuators with different decibels, and the other end of each attenuator is respectively connected with the other three contacts of the ninth single-pole 4-throw switch;
The fixed end of the ninth single-pole 4-throw switch is connected with the fixed end of the tenth single-pole 4-throw switch after passing through the attenuator, the contact of the tenth single-pole 4-throw switch is connected with a receiving characteristic connecting end, and the receiving characteristic connecting end is an analog receiving test signal provided by a signal source;
The test method comprises the steps of testing the characteristics of a receiving channel of the TR component and testing the characteristics of a transmitting channel of the TR component, wherein,
For the characteristic test of the receiving channel of the TR assembly, firstly, a time sequence signal and a control signal used in the actual work of the TR assembly are generated through a beam control module, and the time sequence signal and the control signal are sent into the TR assembly and are controlled to work in a receiving mode;
Then testing working parameters of the TR assembly in different attenuation and phase shift states by using a test instrument, obtaining receiving indexes of the TR assembly by a calculation module, and finally collecting and recording data by an acquisition module;
for the characteristic test of the transmission channel of the TR assembly, firstly, a time sequence signal and a control signal used in the actual work of the TR assembly are generated through a beam control module, and the time sequence signal and the control signal are sent into the TR assembly and are controlled to work in a receiving mode;
and then testing the TR component output index by using a test instrument, calculating the consistency of the transmission power and the total efficiency of the component according to the acquired output index data, and finally acquiring and recording the data by using an acquisition module.
2. The method for comprehensively testing the performance of the TR assembly according to claim 1, wherein the test instrument comprises one or more of a vector network analyzer, a power meter, a frequency spectrometer, a current probe device and an oscilloscope.
3. The method of claim 1, wherein in the test of the characteristics of the receiving channel, the working index of the TR module includes a receiving gain, a receiving phase, a standing wave of the input/output port, a receiving input compression point, and a load state receiving isolation value.
4. The method for testing the performance of a TR module according to claim 1, wherein in the test of the characteristics of the receiving channel, the receiving index of the TR module includes in-band flatness of receiving gain, receiving gain consistency, receiving phase consistency, attenuation accuracy, attenuation spurious phase modulation, nonlinear phase error of the receiving channel, maximum phase shift error, and spurious amplitude modulation index of the phase shifter.
5. The method of claim 1, wherein in the test of the characteristics of the transmission channel, the output index includes an output peak power, a transmission power in-band fluctuation, a transmission signal harmonic suppression, a transmission power envelope peak drop, and a transmit-receive conversion time index.
6. The method of claim 1, further comprising performing offline analysis and statistics on the test data.
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| CN114244451B (en) * | 2021-12-16 | 2024-05-10 | 深圳市广和通无线股份有限公司 | Radio frequency access test circuit, method, device and medium |
| CN114401026B (en) * | 2021-12-22 | 2023-12-01 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Radio frequency comprehensive TR assembly device |
| CN115061411A (en) * | 2022-07-06 | 2022-09-16 | 成都中创锐科信息技术有限公司 | Control device and control method for flexibly adapting TR (transmitter-receiver) component |
| 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 |
| CN116953639B (en) * | 2023-07-25 | 2024-03-19 | 中国人民解放军陆军工程大学 | Automatic test system and method for anti-electromagnetic interference capability of TR (transmitter-receiver) component |
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