CN116953639B - Automatic test system and method for anti-electromagnetic interference capability of TR (transmitter-receiver) component - Google Patents

Automatic test system and method for anti-electromagnetic interference capability of TR (transmitter-receiver) component Download PDF

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Publication number
CN116953639B
CN116953639B CN202310917918.1A CN202310917918A CN116953639B CN 116953639 B CN116953639 B CN 116953639B CN 202310917918 A CN202310917918 A CN 202310917918A CN 116953639 B CN116953639 B CN 116953639B
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component
power
electromagnetic interference
over switch
channel
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CN116953639A (en
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马立云
王玉明
陈亚洲
沈衍
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Army Engineering University of PLA
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Army Engineering University of PLA
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
    • 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
    • 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
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4004—Means for monitoring or calibrating of parts of a radar system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4052—Means for monitoring or calibrating by simulation of echoes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The invention discloses an automatic test system and method for the anti-electromagnetic interference capability of a TR (transmitter/receiver) component, which relate to the technical field of electromagnetic environment effects, wherein the system comprises: the system comprises an irradiation type or injection type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module; the invention realizes the automatic test of parameters in the electromagnetic environmental effect test of the radar TR component.

Description

Automatic test system and method for anti-electromagnetic interference capability of TR (transmitter-receiver) component
Technical Field
The invention relates to the technical field of electromagnetic environment effects, in particular to an automatic test system and method for the anti-electromagnetic interference capability of a TR (transmitter-receiver) component.
Background
In modern high-tech warfare, whether information can be effectively acquired becomes a key of whether a fighter can be acquired, and radar serves as a key sensor for acquiring the warfare information, so that the radar has a self-evident effect and position. At present, radars are threatened by new concept weapons such as electromagnetic pulse weapons and the like besides low-altitude/ultra-low-altitude airplanes, cruise missiles, low-altitude clutters, electronic interference, anti-radiation weapons stealth aircrafts and the like, and are continuously deteriorated in the electromagnetic environment of a battlefield. In order for the radar to have a longer range or to be more likely to find targets, it is often required that the radar be able to handle weak signals. When the radar is interfered by magnetic pulse, electronic components such as a low-noise amplifier of a radar receiving and transmitting (Transmitter and Receiver, TR) assembly are easily damaged irreversibly. The higher the sensitivity of the radar, the farther the range, and the greater the likelihood that the radar TR assembly will be subject to electromagnetic interference.
The radar TR component is a core component of a radar transmitting terminal and a radar receiving front end, electromagnetic interference effect test research is needed for improving the electromagnetic interference resistance of the radar TR component, manual operation is completely relied on in the current electromagnetic environment effect test process, time and labor are wasted, test data recording is not complete easily, test data is asynchronous with the test environment recording, equipment misoperation leads to test errors and other conditions, the test effect can be obtained by analyzing mass data after the test is completed, time and labor are wasted, and the problem that the test phenomenon and the test condition cannot correspond to each other and cause the analysis of the interfered reason is unclear often occurs.
Disclosure of Invention
The invention aims to provide an automatic test system and method for the anti-electromagnetic interference capability of a TR (transmitter-receiver) component, which realize automatic test of parameters in an electromagnetic environment effect test of the radar TR component.
In order to achieve the above object, the present invention provides the following solutions:
an automatic test system for anti-electromagnetic interference capability of a TR assembly, comprising: the system comprises an irradiation type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module;
The irradiation type electromagnetic interference generation monitoring subsystem comprises: the first signal source, the switching switch, the second high-power switching switch and the TR component are sequentially connected;
the irradiation type electromagnetic interference generation monitoring subsystem is used for carrying out an electromagnetic interference effect test on the TR component by utilizing an interference signal sent by the first signal source;
the intensity of the interference signal sent by the first signal source is regulated through a signal intensity prediction model; the signal strength prediction model is obtained by training a short-term memory gating unit by taking the type of an interference signal at the previous moment, the frequency of the interference signal at the previous moment, the power amplification gain at the previous moment and the field intensity information set at the previous moment as inputs and the strength of the interference signal at the current moment as output;
the receive channel harmonic testing subsystem includes: the second signal source, the change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch, the fourth high-power change-over switch and the spectrum analyzer are connected in sequence; the receiving channel harmonic testing subsystem is used for testing the harmonic wave of the TR component after the electromagnetic interference effect test is carried out;
The noise figure test subsystem includes: the spectrum analyzer comprises a spectrum analyzer, a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the spectrum analyzer is connected with the second channel of the fourth high-power change-over switch, and the first channel of the spectrum analyzer is connected with the first channel of the first high-power change-over switch; the noise coefficient testing subsystem is used for testing the noise coefficient of the TR component after the electromagnetic interference effect test is carried out;
the scattering parameter and standing wave testing subsystem comprises: the vector network analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the vector network analyzer is connected with the second channel of the first high-power change-over switch, and the second channel of the vector network analyzer is connected with the first channel of the fourth high-power change-over switch; the scattering parameter and standing wave testing subsystem is used for testing the scattering parameter and standing wave of the TR component after the electromagnetic interference effect test is carried out;
The power and gain testing subsystem includes: the second signal source, the change-over switch, the third high-power change-over switch, the TR component, the second high-power change-over switch and the power meter are connected in sequence; the power and gain testing subsystem is used for testing the power and gain of the TR component after the electromagnetic interference effect test is carried out;
the wave control module is connected with the TR component and is used for controlling the state of the TR component.
Optionally, the irradiation electromagnetic interference generation monitoring subsystem further includes: a power amplifier, a transmitting antenna and a receiving antenna;
the power amplifier is respectively connected with the first signal source and the transmitting antenna, and the receiving antenna is connected with the first high-power switch;
the power amplifier is used for amplifying the intensity of the interference signal generated by the first signal source to obtain an enhanced interference signal;
the transmitting antenna is used for transmitting enhanced interference signals;
the receiving antenna is used for receiving the enhanced interference signal and sending the enhanced interference signal to the first high-power switch.
Optionally, the irradiation electromagnetic interference generation monitoring subsystem further includes: a field intensity meter;
The field intensity probe of the field intensity meter is arranged at the position of the receiving antenna and is used for monitoring the intensity of an interference signal at the position of the receiving antenna.
Optionally, the system further comprises: a high power load;
the high-power load is connected with the TR component through the third high-power change-over switch and is used for absorbing energy injected into the TR component when an electromagnetic interference effect test is conducted.
Optionally, the system further comprises a program control upper computer;
the program-controlled upper computer is respectively connected with each component in the irradiation type electromagnetic interference generation monitoring subsystem, each component in the receiving channel harmonic wave testing subsystem, each component in the noise coefficient testing subsystem, each component in the scattering parameter and standing wave testing subsystem, each component in the power and gain testing subsystem and the wave control module.
An automatic test method for anti-electromagnetic interference capability of a TR (transmitter-receiver) component is realized by using the automatic test system for anti-electromagnetic interference capability of the TR component, and the method comprises the following steps:
carrying out an electromagnetic interference effect test on the TR component by utilizing an irradiation type electromagnetic interference generation monitoring subsystem;
testing the harmonic wave of the TR component subjected to the electromagnetic interference effect test by using a receiving channel harmonic wave testing subsystem;
Testing the noise coefficient of the TR component subjected to the electromagnetic interference effect test by using a noise coefficient testing subsystem;
the scattering parameters and standing waves of the TR component after the electromagnetic interference effect test are tested by using the scattering parameters and the standing wave test subsystem;
and testing the power and the gain of the TR component after the electromagnetic interference effect test by using a power and gain testing subsystem.
An automatic test system for anti-electromagnetic interference capability of a TR assembly, comprising: the system comprises an injection type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module;
the injection type electromagnetic interference generation monitoring subsystem comprises: the device comprises a first signal source, a power amplifier, a directional coupler, a first high-power change-over switch, a second high-power change-over switch and a TR component which are connected in sequence;
the injection type electromagnetic interference generation monitoring subsystem is used for carrying out an electromagnetic interference effect test on the TR component by utilizing an interference signal sent by the first signal source;
the intensity of the interference signal sent by the first signal source is regulated through a signal intensity prediction model; the signal strength prediction model is obtained by training a short-term memory gating unit by taking the type of an interference signal at the previous moment, the frequency of the interference signal at the previous moment, the power amplification gain at the previous moment and the field intensity information set at the previous moment as inputs and the strength of the interference signal at the current moment as output;
The receive channel harmonic testing subsystem includes: the second signal source, the change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch, the fourth high-power change-over switch and the spectrum analyzer are connected in sequence; the receiving channel harmonic testing subsystem is used for testing the harmonic wave of the TR component after the electromagnetic interference effect test is carried out;
the noise figure test subsystem includes: the spectrum analyzer comprises a spectrum analyzer, a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch, wherein the first high-power change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch and the fourth high-power change-over switch are sequentially connected; the first channel of the spectrum analyzer is connected with the second channel of the fourth high-power change-over switch, and the first channel of the spectrum analyzer is connected with the first channel of the first high-power change-over switch; the noise coefficient testing subsystem is used for testing the noise coefficient of the TR component after the electromagnetic interference effect test is carried out;
the scattering parameter and standing wave testing subsystem comprises: the vector network analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the vector network analyzer is connected with the second channel of the first high-power change-over switch, and the second channel of the vector network analyzer is connected with the first channel of the fourth high-power change-over switch; the scattering parameter and standing wave testing subsystem is used for testing the scattering parameter and standing wave of the TR component after the electromagnetic interference effect test is carried out;
The power and gain testing subsystem includes: the second signal source, the change-over switch, the third high-power change-over switch, the TR component, the second high-power change-over switch and the power meter are connected in sequence; the power and gain testing subsystem is used for testing the power and gain of the TR component after the electromagnetic interference effect test is carried out;
the wave control module is connected with the TR component and is used for controlling the state of the TR component.
Optionally, the system further comprises: a high power load;
the high-power load is connected with the TR component through the third high-power change-over switch and is used for absorbing energy injected into the TR component when an electromagnetic interference effect test is conducted.
Optionally, the system further comprises a program control upper computer;
the program-controlled upper computer is respectively connected with each component in the injection type electromagnetic interference generation monitoring subsystem, each component in the receiving channel harmonic wave testing subsystem, each component in the noise coefficient testing subsystem, each component in the scattering parameter and standing wave testing subsystem, each component in the power and gain testing subsystem and the wave control module.
An automatic test method for anti-electromagnetic interference capability of a TR (transmitter-receiver) component is realized by using the automatic test system for anti-electromagnetic interference capability of the TR component, and the method comprises the following steps:
performing an electromagnetic interference effect test on the TR component by using an injection type electromagnetic interference generation monitoring subsystem;
testing the harmonic wave of the TR component subjected to the electromagnetic interference effect test by using a receiving channel harmonic wave testing subsystem;
testing the noise coefficient of the TR component subjected to the electromagnetic interference effect test by using a noise coefficient testing subsystem;
the scattering parameters and standing waves of the TR component after the electromagnetic interference effect test are tested by using the scattering parameters and the standing wave test subsystem;
and testing the power and the gain of the TR component after the electromagnetic interference effect test by using a power and gain testing subsystem.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses an automatic test system and method for the anti-electromagnetic interference capability of a TR component, wherein the system comprises: the system comprises an irradiation type or injection type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module; and the subsystem is utilized to realize the test of the parameters of the corresponding TR assembly, and the automatic test of the parameters in the electromagnetic environmental effect test of the radar TR assembly is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an automatic test system for anti-electromagnetic interference capability of a TR assembly according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an automatic test system for anti-electromagnetic interference capability of TR assembly according to embodiment 3 of the present invention;
FIG. 3 is a schematic diagram of a short term memory gating cell;
FIG. 4 is a schematic diagram of a sigmoid function;
FIG. 5 is a schematic diagram of the tanh function.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but 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 be within the scope of the invention.
The invention aims to provide an automatic test system and method for the anti-electromagnetic interference capability of a TR (transmitter-receiver) component, which aim to realize automatic test of parameters in an electromagnetic environment effect test of the radar TR component.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1
Fig. 1 is a schematic structural diagram of an automatic test system for anti-electromagnetic interference capability of a TR module according to embodiment 1 of the present invention. As shown in fig. 1 (the dotted line in fig. 1 is a program-controlled line, the program-controlled line is implemented by a network cable, the solid line is a radio-frequency signal connection link, and the radio-frequency signal connection link is implemented by a high-power coaxial cable), the TR assembly electromagnetic interference resistance automatic test system in this embodiment includes: the system comprises an irradiation type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module.
The irradiation type electromagnetic interference generation monitoring subsystem comprises: the switching device comprises a first signal source, a switching switch, a second high-power switching switch and a TR component, wherein the switching switch, the second high-power switching switch and the TR component are sequentially connected.
The irradiation type electromagnetic interference generation monitoring subsystem is used for conducting electromagnetic interference effect test on the TR component by utilizing interference signals sent by the first signal source.
The intensity of the interference signal sent by the first signal source is regulated through a signal intensity prediction model; the signal strength prediction model is obtained by training the short-term memory gating unit by taking the type of the interference signal at the previous moment, the frequency of the interference signal at the previous moment, the power amplification gain at the previous moment and the field intensity information set at the previous moment as inputs and the strength of the interference signal at the current moment as output.
As an alternative embodiment, the irradiance electromagnetic interference generating monitoring subsystem further comprises: a power amplifier, a transmitting antenna and a receiving antenna;
the power amplifier is connected with the first signal source and the transmitting antenna respectively, and the receiving antenna is connected with the first high-power switch.
The power amplifier is used for amplifying the intensity of the interference signal generated by the first signal source to obtain an enhanced interference signal.
The transmitting antenna is used for transmitting the enhanced interference signal.
The receiving antenna is used for receiving the enhanced interference signal and transmitting the enhanced interference signal to the first high-power switch.
As an alternative embodiment, the irradiance electromagnetic interference generating monitoring subsystem further comprises: a field intensity meter.
The field intensity probe of the field intensity meter is arranged at the position of the receiving antenna and is used for monitoring the intensity of an interference signal at the position of the receiving antenna.
Specifically, in the irradiation electromagnetic interference generation monitoring subsystem, a signal source 1 (i.e., a first signal source) is connected to a signal input port of a power amplifier, a signal output port of the power amplifier is connected to a transmitting antenna, and an interference signal generated by the signal source 1 and amplified by the power amplifier is radiated by the transmitting antenna. The field intensity probe of the field intensity meter is arranged on one side of the receiving antenna and used for monitoring the intensity of an interference signal at the receiving position of the receiving antenna, the monitored intensity of the interference signal is used for analyzing the electromagnetic environment effect of the TR assembly under different intensity interference to obtain different influences of different electromagnetic environments on the TR assembly, so that the electromagnetic effect rule and mechanism of the TR assembly are obtained, and technical support is provided for protection and reinforcement of the TR assembly. The receiving antenna is connected with a channel 3 of a high-power switch 1 (namely a first high-power switch), a channel 0 of the high-power switch 1 is connected with a channel 1 of a high-power switch 2 (namely a second high-power switch), the channel 0 of the high-power switch 2 is connected with a signal T/R port of a TR component, a public channel interface of the TR component is connected with the channel 0 of the high-power switch 3 (namely a third high-power switch), and the channel 2 of the high-power switch 3 is connected with a high-power load. In fig. 1, the black dots beside the receiving antenna are field intensity probes, which are connected with the field intensity meter by optical fibers.
The receive channel harmonic test subsystem includes: the second signal source, the change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch, the fourth high-power change-over switch and the spectrum analyzer are connected in sequence; the receiving channel harmonic testing subsystem is used for testing the harmonic wave of the TR assembly after the electromagnetic interference effect test is carried out.
Specifically, the signal output port of the signal source 2 (i.e. the second signal source) is connected with the channel 0 of the switch, the channel 1 of the switch is connected with the channel 3 of the high-power switch 2, the channel 0 of the high-power switch 2 is connected with the signal T/R port of the TR assembly, the public channel interface of the TR assembly is connected with the channel 0 of the high-power switch 3, the channel 1 of the high-power switch 3 is connected with the channel 0 of the high-power switch 4 (i.e. the fourth high-power switch), and the channel 2 of the high-power switch 4 is connected with the channel 1 of the spectrum analyzer, so that a receiving channel harmonic testing system of the TR assembly, i.e. a receiving channel harmonic testing subsystem, is formed.
The noise figure test subsystem comprises: the spectrum analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the spectrum analyzer is connected with the second channel of the fourth high-power change-over switch, and the first channel of the spectrum analyzer is connected with the first channel of the first high-power change-over switch; the noise coefficient testing subsystem is used for testing the noise coefficient of the TR component after the electromagnetic interference effect test is carried out.
Specifically, the channel 2 of the spectrum analyzer is connected with the channel 1 of the high-power switch 1, the channel 0 of the high-power switch 1 is connected with the channel 1 of the high-power switch 2, the channel 0 of the high-power switch 2 is connected with the signal T/R port of the TR component, the public channel interface of the TR component is connected with the channel 0 of the high-power switch 3, the channel 1 of the high-power switch 3 is connected with the channel 0 of the high-power switch 4, the channel 2 of the high-power switch 4 is connected with the channel 1 of the spectrum analyzer, and a noise factor test system of the TR component, namely a noise factor test subsystem, is formed.
The scattering parameter and standing wave testing subsystem comprises: the vector network analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the vector network analyzer is connected with the second channel of the first high-power change-over switch, and the second channel of the vector network analyzer is connected with the first channel of the fourth high-power change-over switch; the scattering parameter and standing wave testing subsystem is used for testing the scattering parameter and standing wave of the TR component after the electromagnetic interference effect test is carried out.
Specifically, the channel 1 of the vector network analyzer is connected with the channel 2 of the high-power switch 1, the channel 0 of the high-power switch 1 is connected with the channel 1 of the high-power switch 2, the channel 0 of the high-power switch 2 is connected with the signal T/R port of the TR component, the public channel interface of the TR component is connected with the channel 0 of the high-power switch 3, the channel 1 of the high-power switch 3 is connected with the channel 0 of the high-power switch 4, the channel 1 of the high-power switch 4 is connected with the channel 2 of the vector network analyzer, and S parameters (scattering parameters) of the TR component, a standing wave test system, namely scattering parameters and a standing wave test subsystem are formed.
The power and gain testing subsystem includes: the second signal source, the change-over switch, the third high-power change-over switch, the TR component, the second high-power change-over switch and the power meter are connected in sequence; the power and gain testing subsystem is used for testing the power and gain of the TR component after the electromagnetic interference effect test is carried out.
Specifically, the signal output port of the signal source 2 is connected with the channel 0 of the switch, the channel 2 of the switch is connected with the channel 3 of the high-power switch 3, the channel 0 of the high-power switch 3 is connected with the public channel interface of the TR component, the signal T/R port of the TR component signal is connected with the channel 0 of the high-power switch 2, the channel 2 of the high-power switch 2 is connected with the power meter, and the power and gain testing subsystem of the TR component is formed.
The wave control module is connected with the TR component and is used for controlling the state of the TR component.
Specifically, the wave control module is connected with the TR assembly through a bus to control the state (transmitting state and receiving state) of the TR assembly.
As an alternative embodiment, the system further comprises: high power loads.
The high-power load is connected with the TR component through the third high-power change-over switch and is used for absorbing energy injected into the TR component when an electromagnetic interference effect test is conducted.
As an alternative embodiment, the system further comprises a programmed host computer.
The program-controlled upper computer is respectively connected with each component in the irradiation type electromagnetic interference generation monitoring subsystem, each component in the receiving channel harmonic wave testing subsystem, each component in the noise coefficient testing subsystem, each component in the scattering parameter and standing wave testing subsystem, each component in the power and gain testing subsystem and the wave control module.
Example 2
The automatic test method for the anti-electromagnetic interference capability of the TR component in the embodiment is realized by using the automatic test system for the anti-electromagnetic interference capability of the TR component in the embodiment 1, and the method comprises the following steps:
and carrying out an electromagnetic interference effect test on the TR component by using the irradiation type electromagnetic interference generation monitoring subsystem.
And testing the harmonic wave of the TR assembly subjected to the electromagnetic interference effect test by using a receiving channel harmonic wave testing subsystem.
And testing the noise coefficient of the TR component subjected to the electromagnetic interference effect test by using a noise coefficient testing subsystem.
And testing the scattering parameters and the standing waves of the TR component after the electromagnetic interference effect test by using the scattering parameters and the standing wave testing subsystem.
And testing the power and the gain of the TR component after the electromagnetic interference effect test by using a power and gain testing subsystem.
Specifically, the specific process of implementing the automatic test method for the anti-electromagnetic interference capability of the TR assembly by using the automatic test system for the anti-electromagnetic interference capability of the TR assembly in embodiment 1 includes:
first step (electromagnetic interference effect test): the method comprises the steps of applying an interference signal, controlling the state of a TR assembly by using a program-controlled upper computer program (the TR assembly is in a transmitting state, namely, the interference test of a transmitting channel is carried out, and the interference test of a receiving channel is carried out in a receiving state), controlling a signal source 1 to generate the interference signal, amplifying the interference signal through a power amplifier, radiating the interference signal through a transmitting antenna, receiving the interference signal by the receiving antenna, and finally injecting interference into a signal T/R port of the TR assembly through a high-power change-over switch 1 and a high-power change-over switch 2, so as to complete the electromagnetic interference effect test. And the electromagnetic interference intensity (size) is monitored by using a field intensity probe and a field intensity meter in the electromagnetic interference effect experimental process.
And a second step of: the signal source 1 is controlled by the program control upper computer program to close the interference signal.
And a third step of: TR assembly harmonic testing: the state of the TR component is not changed (namely, the state of the TR component is the same as the state of the TR component in the electromagnetic interference effect experiment) when the parameter is tested, the signal source 2 is opened, the signal source 2 is set to be a certain signal according to the characteristics of the TR component, the set signal sequentially passes through the channel 0 and the channel 1 of the change-over switch, the channel 3 and the channel 0 of the high-power change-over switch 2 and enter the signal T/R port of the TR component, and after the signal is processed by the receiving channel of the TR component, the signal sequentially passes through the public channel interface of the TR component, the channel 0 and the channel 1 of the high-power change-over switch 3 and the channel 0 and the channel 2 of the high-power change-over switch 4 to reach the channel 1 of the spectrum analyzer, and the harmonic wave of the TR component is tested by utilizing the spectrum test function of the spectrum analyzer.
Fourth step: and (3) testing the noise coefficient of the TR component: the state of the TR component is not changed, the spectrum analyzer is switched to a noise coefficient test mode, a channel 2 of the spectrum analyzer is provided with a noise source to automatically generate signals, the signals sequentially pass through a channel 1 and a channel 0 of a high-power switch 1, a channel 1 and a channel 0 of the high-power switch 2 to enter a signal T/R port of the TR component, the signals pass through a receiving channel of the TR component to be processed, and then sequentially pass through a public channel interface of the TR component, a channel 0 and a channel 1 of a high-power switch 3 and a channel 0 and a channel 2 of a high-power switch 4 to reach the channel 1 of the spectrum analyzer, and the noise coefficient of the TR component is tested by utilizing the noise coefficient test function of the spectrum analyzer.
Fifth step: and (3) testing S parameters and standing waves of the TR component: the state of the TR component is not changed, the channel 1 of the vector network analyzer generates signals, the signals sequentially pass through the channel 2 and the channel 0 of the high-power switch 1, the channel 1 and the channel 0 of the high-power switch 2 and enter the signal T/R port of the TR component, after the signals are processed by the receiving channel of the TR component, the signals sequentially pass through the public channel interface of the TR component, the channel 0 and the channel 1 of the high-power switch 3 and the channel 0 and the channel 1 of the high-power switch 4 to reach the channel 2 of the vector network analyzer, and S parameters and standing waves of the TR component are tested by utilizing the S parameters and the standing wave test function of the vector network analyzer.
Sixth step: TR module power, gain test: the method comprises the steps of opening a signal source 2 without changing the state of a TR (transmitter and receiver) component, setting the signal source 2 to be a certain signal according to the characteristics of the TR component, outputting the set signal, enabling the signal to sequentially enter a public channel interface of the TR component through a channel 0 and a channel 2 of a switch and a channel 3 and a channel 0 of a high-power switch 3, enabling the signal to sequentially pass through a signal T/R port of the TR component, a channel 0 and a channel 2 of the high-power switch 2 after being processed by a transmitting channel of the TR component to reach a power meter, testing the power of the amplified signal, and obtaining the gain by calculating the difference between the power of the signal generated by the signal source 2 and the power of the signal measured by the power meter.
Furthermore, the program control upper computer can be used for carrying out data synchronization processing on the applied interference signals and the tested TR component parameters, comparing the parameters with the parameters when the electromagnetic interference effect experiment is not carried out, and analyzing the effect result.
Example 3
Fig. 2 is a schematic structural diagram of an automatic test system for anti-electromagnetic interference capability of TR assembly according to embodiment 3 of the present invention. As shown in fig. 2 (the dotted line in fig. 2 is a program-controlled line, the program-controlled line is implemented by a network cable, the solid line is a radio-frequency signal connection link, and the radio-frequency signal connection link is implemented by a high-power coaxial cable), the TR assembly electromagnetic interference resistance automatic test system in this embodiment includes: the system comprises an injection type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module.
The injection type electromagnetic interference generation monitoring subsystem comprises: the device comprises a first signal source, a power amplifier, a directional coupler, a first high-power change-over switch, a second high-power change-over switch and a TR component which are sequentially connected.
The injection type electromagnetic interference generation monitoring subsystem is used for conducting electromagnetic interference effect test on the TR component by utilizing interference signals sent by the first signal source.
The intensity of the interference signal sent by the first signal source is regulated through a signal intensity prediction model; the signal strength prediction model is obtained by training the short-term memory gating unit by taking the type of the interference signal at the previous moment, the frequency of the interference signal at the previous moment, the power amplification gain at the previous moment and the field intensity information set at the previous moment as inputs and the strength of the interference signal at the current moment as output.
Specifically, the injection type electromagnetic interference generation monitoring subsystem further comprises: a power meter.
In the injection type electromagnetic interference generation monitoring subsystem, a signal source 1 (namely a first signal source) is connected with a signal input port of a power amplifier, a signal output port of the power amplifier is connected with an input end of a directional coupler, an output end of the directional coupler is connected with a channel 3 of a high-power switch 1 (namely a first high-power switch), a channel 0 of the high-power switch 1 is connected with a channel 1 of a high-power switch 2, a channel 0 of the high-power switch 2 (namely a second high-power switch) is connected with a signal T/R port of a TR component, a public channel interface of the TR component is connected with a channel 0 of the high-power switch 3 (namely a second high-power switch), a channel 2 of the high-power switch 3 is connected with a high-power load, a channel 1 of a power meter is connected with a forward power monitoring port of the directional coupler, and the intensity of an interference signal injected into the TR component is monitored.
The receive channel harmonic test subsystem includes: the second signal source, the change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch, the fourth high-power change-over switch and the spectrum analyzer are connected in sequence; the receiving channel harmonic testing subsystem is used for testing the harmonic wave of the TR assembly after the electromagnetic interference effect test is carried out.
Specifically, the signal output port of the signal source 2 (i.e. the second signal source) is connected with the channel 0 of the switch, the channel 1 of the switch is connected with the channel 3 of the high-power switch 2, the channel 0 of the high-power switch 2 is connected with the signal T/R port of the TR assembly, the public channel interface of the TR assembly is connected with the channel 0 of the high-power switch 3, the channel 1 of the high-power switch 3 is connected with the channel 0 of the high-power switch 4 (i.e. the fourth high-power switch), and the channel 2 of the high-power switch 4 is connected with the channel 1 of the spectrum analyzer, so that a harmonic testing system of the TR assembly, i.e. a receiving channel harmonic testing subsystem, is formed.
The noise figure test subsystem comprises: the spectrum analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the spectrum analyzer is connected with the second channel of the fourth high-power change-over switch, and the first channel of the spectrum analyzer is connected with the first channel of the first high-power change-over switch; the noise coefficient testing subsystem is used for testing the noise coefficient of the TR component after the electromagnetic interference effect test is carried out.
Specifically, the channel 2 of the spectrum analyzer is connected with the channel 1 of the high-power switch 1, the channel 0 of the high-power switch 1 is connected with the channel 1 of the high-power switch 2, the channel 0 of the high-power switch 2 is connected with the signal T/R port of the TR component, the public channel interface of the TR component is connected with the channel 0 of the high-power switch 3, the channel 1 of the high-power switch 3 is connected with the channel 0 of the high-power switch 4, the channel 2 of the high-power switch 4 is connected with the channel 1 of the spectrum analyzer, and a noise factor test system of the TR component, namely a noise factor test subsystem, is formed.
The scattering parameter and standing wave testing subsystem comprises: the vector network analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the vector network analyzer is connected with the second channel of the first high-power change-over switch, and the second channel of the vector network analyzer is connected with the first channel of the fourth high-power change-over switch; the scattering parameter and standing wave testing subsystem is used for testing the scattering parameter and standing wave of the TR component after the electromagnetic interference effect test is carried out.
Specifically, the channel 1 of the vector network analyzer is connected with the channel 2 of the high-power switch 1, the channel 0 of the high-power switch 1 is connected with the channel 1 of the high-power switch 2, the channel 0 of the high-power switch 2 is connected with the signal T/R port of the TR component, the public channel interface of the TR component is connected with the channel 0 of the high-power switch 3, the channel 1 of the high-power switch 3 is connected with the channel 0 of the high-power switch 4, the channel 1 of the high-power switch 4 is connected with the channel 2 of the vector network analyzer, and S parameters (scattering parameters) of the TR component, a standing wave test system, namely scattering parameters and a standing wave test subsystem are formed.
The power and gain testing subsystem includes: the second signal source, the change-over switch, the third high-power change-over switch, the TR component, the second high-power change-over switch and the power meter are connected in sequence; the power and gain testing subsystem is used for testing the power and gain of the TR component after the electromagnetic interference effect test is carried out.
Specifically, the signal output port of the signal source 2 is connected with the channel 0 of the switch, the channel 2 of the switch is connected with the channel 3 of the high-power switch 3, the channel 0 of the high-power switch 3 is connected with the public channel interface of the TR component, the signal T/R port of the TR component is connected with the channel 0 of the high-power switch 2, the channel 2 of the high-power switch 2 is connected with the channel 2 of the power meter, and a power gain test system, namely a power and gain test subsystem, of the TR component is formed.
The wave control module is connected with the TR component and is used for controlling the state of the TR component.
Specifically, the wave control module is connected with the TR assembly through a bus to control the state (transmitting state and receiving state) of the TR assembly.
As an alternative embodiment, the system further comprises: high power loads.
The high-power load is connected with the TR component through the third high-power change-over switch and is used for absorbing energy injected into the TR component when an electromagnetic interference effect test is conducted.
As an alternative embodiment, the system further comprises a programmed host computer.
The program-controlled upper computer is respectively connected with each component in the injection type electromagnetic interference generation monitoring subsystem, each component in the receiving channel harmonic wave testing subsystem, each component in the noise coefficient testing subsystem, each component in the scattering parameter and standing wave testing subsystem, each component in the power and gain testing subsystem and the wave control module.
Example 4
The automatic test method for the anti-electromagnetic interference capability of the TR component in the embodiment is realized by using the automatic test system for the anti-electromagnetic interference capability of the TR component in the embodiment 3, and the method comprises the following steps:
and carrying out an electromagnetic interference effect test on the TR component by using the injection type electromagnetic interference generation monitoring subsystem.
And testing the harmonic wave of the TR assembly subjected to the electromagnetic interference effect test by using a receiving channel harmonic wave testing subsystem.
And testing the noise coefficient of the TR component subjected to the electromagnetic interference effect test by using a noise coefficient testing subsystem.
And testing the scattering parameters and the standing waves of the TR component after the electromagnetic interference effect test by using the scattering parameters and the standing wave testing subsystem.
And testing the power and the gain of the TR component after the electromagnetic interference effect test by using a power and gain testing subsystem.
Specifically, the specific process of implementing the automatic test method for the anti-electromagnetic interference capability of the TR assembly by using the automatic test system for the anti-electromagnetic interference capability of the TR assembly in embodiment 3 includes:
first step (electromagnetic interference effect test): the method comprises the steps of applying an interference signal, controlling the state of a TR assembly (the TR assembly is in a transmitting state, namely, the interference test of a transmitting channel is carried out, and the interference test of a receiving channel is carried out in a receiving state) by utilizing a program control upper computer program, controlling a signal source 1 to generate the interference signal, amplifying the interference signal through a power amplifier, sequentially passing through a directional coupler, a high-power switch 1 and a high-power switch 2, and finally injecting the interference signal into a signal T/R port of the TR assembly to complete an electromagnetic interference effect test. And the monitoring of the electromagnetic interference intensity (magnitude) is completed by using a power meter in the electromagnetic interference effect experimental process.
And a second step of: the signal source 1 is controlled by the program control upper computer program to close the interference signal.
And a third step of: TR assembly harmonic testing: the state of the TR component is not changed (namely, the state of the TR component is the same as the state of the TR component in the electromagnetic interference effect experiment) when the parameter is tested, the signal source 2 is opened, the signal source 2 is set to be a certain signal according to the characteristics of the TR component, the set signal sequentially passes through the channel 0 and the channel 1 of the change-over switch, the channel 3 and the channel 0 of the high-power change-over switch 2 and enter the signal T/R port of the TR component, and after the signal is processed by the receiving channel of the TR component, the signal sequentially passes through the public channel interface of the TR component, the channel 0 and the channel 1 of the high-power change-over switch 3 and the channel 0 and the channel 2 of the high-power change-over switch 4 to reach the channel 1 of the spectrum analyzer, and the harmonic wave of the TR component is tested by utilizing the spectrum test function of the spectrum analyzer.
Fourth step: and (3) testing the noise coefficient of the TR component: the state of the TR component is not changed, the spectrum analyzer is switched to a noise coefficient test mode, a channel 2 of the spectrum analyzer is provided with a noise source to automatically generate signals, the signals sequentially pass through a channel 1 and a channel 0 of a high-power switch 1, a channel 1 and a channel 0 of the high-power switch 2 to enter a signal T/R port of the TR component, the signals pass through a receiving channel of the TR component to be processed, and then sequentially pass through a public channel interface of the TR component, a channel 0 and a channel 1 of a high-power switch 3 and a channel 0 and a channel 2 of a high-power switch 4 to reach the channel 1 of the spectrum analyzer, and the noise coefficient of the TR component is tested by utilizing the noise coefficient test function of the spectrum analyzer.
Fifth step: and (3) testing S parameters and standing waves of the TR component: the state of the TR component is not changed, the channel 1 of the vector network analyzer generates signals, the signals sequentially pass through the channel 2 and the channel 0 of the high-power switch 1, the channel 1 and the channel 0 of the high-power switch 2 and enter the signal T/R port of the TR component, after the signals are processed by the receiving channel of the TR component, the signals sequentially pass through the public channel interface of the TR component, the channel 0 and the channel 1 of the high-power switch 3 and the channel 0 and the channel 1 of the high-power switch 4 to reach the channel 2 of the vector network analyzer, and the S parameter and the standing wave of the TR component are tested by utilizing the S parameter and the standing wave test function of the vector network analyzer.
Sixth step: TR module power, gain test: the method comprises the steps of opening a signal source 2 without changing the state of a TR (transmitter and receiver) component, setting the signal source 2 to be a certain signal according to the characteristics of the TR component, outputting the set signal, enabling the signal to sequentially enter a public channel interface of the TR component through a channel 0 and a channel 2 of a switch and a channel 3 and a channel 0 of a high-power switch 3, enabling the signal to sequentially pass through a signal T/R port of the TR component, a channel 0 and a channel 2 of the high-power switch 2 after being processed by a transmitting channel of the TR component to reach a power meter, testing the power of the amplified signal, and obtaining the gain by calculating the difference between the power of the signal generated by the signal source 2 and the power of the signal measured by the power meter.
And further, the program control upper computer is used for carrying out data synchronization processing on the applied interference signal and the tested TR component parameter, comparing the data with the parameter when the interference test is not carried out, and analyzing the effect result.
According to the embodiments 1-4, there are two schemes for automatically testing the anti-electromagnetic interference capability of the TR assembly according to the present invention, namely, an irradiation method and an injection method. The irradiation method is adopted for testing, the electromagnetic wave has loss in the air transmission, and when the electromagnetic wave propagates for the same distance, the higher the frequency of the electromagnetic wave is, the larger the loss is, so that a power amplifier with larger power is required to obtain interference signals with the same intensity generated by the injection method. However, the electromagnetic waves received and emitted by the TR component in the working process are received by the antenna, so that the experimental process of the irradiation method is closer to the actual interfered state of the TR component. The injection method directly injects the interference signal into the test system through the high-frequency high-power coaxial cable, the interference to the TR component can be realized by using the power amplifier with smaller power, the requirement on the power amplifier is reduced, but the test process is more ideal, the situation that the interference is received in the normal working process of the TR component cannot be directly reflected, and therefore, after the experiment is finished, the interference intensity required by the TR component when the interference is received in the antenna adding state is obtained by adding the antenna coefficient and the like to the interference signal to be reversely calculated and pushed.
Wherein, the control of the intensity (magnitude) of the interference signal in the irradiation method and the injection method realizes automatic adjustment by using a signal intensity prediction model obtained by a Short Memory Gating Unit (SMGU). The internal structure of which is shown in figure 3. Wherein X is t Inputting information for the current moment, including electromagnetic interference signal type, interference signal frequency, power amplifier gain and field intensity information (intensity of interference signals); h is a t-1 Is the hidden state of the previous moment; r is (r) t Is a reset gate; z t To update the door;candidate hidden states are the current moment; h is a t The hidden state at the current time is also the output at the current time, i.e., the signal strength value (the signal strength output by the signal source).
The type of the interference signal, the frequency of the interference signal, the gain of the power amplifier and the field intensity information (the intensity of the interference signal) are taken as input data of the SMGU, and the signal intensity (the signal intensity output by a signal source) is taken as output data of the SMGU. The data of different input data items have different value ranges, so that the value difference is larger. If not processed to participate directly in model training, larger data values may impair the role of smaller data values in the model, resulting in smaller data values having poor performance in the model. Therefore, the data of different input data items are required to be normalized, so that all the input data are ensured to be equally treated by the prediction model, and the model convergence speed is ensured to be higher. Parameters of the deep learning model include hyper-parameters and model parameters. The hyper-parameter values are determined prior to model training. The model parameter value is an optimal parameter value obtained automatically through model learning in the model training process. Firstly, carrying out normalization processing on input data and output data; then, determining the optimal super-parameter value of the model by a grid search method; the SMGU then model-trains a number of normalized input and output data. In the model training process, the model automatically adjusts model parameter values according to model loss function values, so that optimal model parameter values are automatically learned and obtained, and a trained prediction model, namely a signal strength prediction model, is obtained; finally, when the type of the interference signal, the frequency of the interference signal, the gain of the power amplifier and the field intensity information after normalization processing are input into a signal intensity prediction model, the model can predict a corresponding normalized signal intensity value, and the corresponding signal intensity value is finally obtained through inverse normalization processing.
Wherein, the operation inside the SMGU is as follows:
1) Calculating reset gate r t . First the hidden state h transferred from the previous moment t-1 And input x at the current time t And performing linear transformation and then performing calculation through a sigmoid activation function. Due to the nature of the sigmoid activation function, as shown in fig. 4, when the inputs reach a certain interval ((- ≡5) and (5, ++) the function value does not change significantly, i.e., the derivative of the function value is close to 0, which will result inModel learning "gradient vanishes" thereby reducing model learning ability. Therefore, it is proposed that the sigmoid activation function output value ((0, 1) interval) is calculated by the tanh activation function, and the derivative of the function value of the tanh activation function is obviously not 0 (as shown in fig. 5), which can effectively alleviate the problem of "gradient disappearance" of the model in the training process, thereby improving the model gradient learning capability. The reset gate calculation is as shown in equation (1):
r t ＝tanh(σ(W r [h t-1 ,x t ]+b r )) (1)。
wherein sigma () is a sigmoid activation function, W r And b r The weight matrix and bias values of the reset gates, respectively.
2) Computing an update door z t . Its calculation process and principle and reset gate r t Similarly, as shown in formula (2):
z t ＝tanh(σ(W z [h t-1 ,x t ]+b z )) (2)。
wherein W is z And b z The weight matrix and the bias value of the update gate, respectively.
3) Computing candidate hidden statesHiding the state h at the previous moment according to the calculation result of the reset gate t-1 Optionally forgetting, and adding the result to x t A linear transformation and transformation of the tanh activation function as input>Values as shown in formula (3):
wherein W is h Weight matrix for candidate hidden states, b h Is the bias value of the candidate hidden state. Here, theCan be regarded as the combination of the input information at the current moment and the hidden state retention information at the previous moment, and is used for calculating the hidden state h at the current moment t Laying a foundation.
4) Calculating the hidden state h at the current moment t . This value is also the output of the current time, and its calculation process is shown in formula (4):
model characteristics:
1) Since the model is at r t The tanh function is introduced, and the influence of the hidden state at the previous moment on the current moment output is reduced due to the characteristics of the tanh function, so that only short-term information has influence on the current moment information output.
2) Improve h t The calculation process increases the hidden state at the current momentAnd the current time information output is influenced.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the above examples being provided only to assist in understanding the system, method, and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (10)

1. An automatic test system for anti-electromagnetic interference capability of a TR assembly, the system comprising: the system comprises an irradiation type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module;
the irradiation type electromagnetic interference generation monitoring subsystem comprises: the first signal source, the switching switch, the second high-power switching switch and the TR component are sequentially connected;
the irradiation type electromagnetic interference generation monitoring subsystem is used for carrying out an electromagnetic interference effect test on the TR component by utilizing an interference signal sent by the first signal source;
the intensity of the interference signal sent by the first signal source is regulated through a signal intensity prediction model; the signal strength prediction model is obtained by training a short-term memory gating unit by taking the type of an interference signal at the previous moment, the frequency of the interference signal at the previous moment, the power amplification gain at the previous moment and the field intensity information set at the previous moment as inputs and the strength of the interference signal at the current moment as output;
The receive channel harmonic testing subsystem includes: the second signal source, the change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch, the fourth high-power change-over switch and the spectrum analyzer are connected in sequence; the receiving channel harmonic testing subsystem is used for testing the harmonic wave of the TR component after the electromagnetic interference effect test is carried out;
the noise figure test subsystem includes: the spectrum analyzer comprises a spectrum analyzer, a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the spectrum analyzer is connected with the second channel of the fourth high-power change-over switch, and the first channel of the spectrum analyzer is connected with the first channel of the first high-power change-over switch; the noise coefficient testing subsystem is used for testing the noise coefficient of the TR component after the electromagnetic interference effect test is carried out;
the scattering parameter and standing wave testing subsystem comprises: the vector network analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the vector network analyzer is connected with the second channel of the first high-power change-over switch, and the second channel of the vector network analyzer is connected with the first channel of the fourth high-power change-over switch; the scattering parameter and standing wave testing subsystem is used for testing the scattering parameter and standing wave of the TR component after the electromagnetic interference effect test is carried out;
The power and gain testing subsystem includes: the second signal source, the change-over switch, the third high-power change-over switch, the TR component, the second high-power change-over switch and the power meter are connected in sequence; the power and gain testing subsystem is used for testing the power and gain of the TR component after the electromagnetic interference effect test is carried out;
the wave control module is connected with the TR component and is used for controlling the state of the TR component.
2. The TR assembly electromagnetic interference immunity automatic test system of claim 1, wherein said irradiation electromagnetic interference generation monitoring subsystem further comprises: a power amplifier, a transmitting antenna and a receiving antenna;
the power amplifier is respectively connected with the first signal source and the transmitting antenna, and the receiving antenna is connected with the first high-power switch;
the power amplifier is used for amplifying the intensity of the interference signal generated by the first signal source to obtain an enhanced interference signal;
the transmitting antenna is used for transmitting enhanced interference signals;
the receiving antenna is used for receiving the enhanced interference signal and sending the enhanced interference signal to the first high-power switch.
3. The TR assembly electromagnetic interference immunity automatic test system according to claim 2, wherein said irradiation electromagnetic interference generation monitoring subsystem further comprises: a field intensity meter;
the field intensity probe of the field intensity meter is arranged at the position of the receiving antenna and is used for monitoring the intensity of an interference signal at the position of the receiving antenna.
4. The TR assembly electromagnetic interference immunity automatic test system of claim 1, wherein said system further comprises: a high power load;
the high-power load is connected with the TR component through the third high-power change-over switch and is used for absorbing energy injected into the TR component when an electromagnetic interference effect test is conducted.
5. The TR assembly electromagnetic interference resistance automatic test system according to claim 1, wherein said system further comprises a programmed upper computer;
the program-controlled upper computer is respectively connected with each component in the irradiation type electromagnetic interference generation monitoring subsystem, each component in the receiving channel harmonic wave testing subsystem, each component in the noise coefficient testing subsystem, each component in the scattering parameter and standing wave testing subsystem, each component in the power and gain testing subsystem and the wave control module.
6. An automatic test method for anti-electromagnetic interference capability of a TR assembly, which is implemented by using the automatic test system for anti-electromagnetic interference capability of a TR assembly according to any one of claims 1 to 5, wherein the method comprises the following steps:
carrying out an electromagnetic interference effect test on the TR component by utilizing an irradiation type electromagnetic interference generation monitoring subsystem;
testing the harmonic wave of the TR component subjected to the electromagnetic interference effect test by using a receiving channel harmonic wave testing subsystem;
testing the noise coefficient of the TR component subjected to the electromagnetic interference effect test by using a noise coefficient testing subsystem;
the scattering parameters and standing waves of the TR component after the electromagnetic interference effect test are tested by using the scattering parameters and the standing wave test subsystem;
and testing the power and the gain of the TR component after the electromagnetic interference effect test by using a power and gain testing subsystem.
7. An automatic test system for anti-electromagnetic interference capability of a TR assembly, the system comprising: the system comprises an injection type electromagnetic interference generation monitoring subsystem, a receiving channel harmonic wave testing subsystem, a noise coefficient testing subsystem, a scattering parameter and standing wave testing subsystem, a power and gain testing subsystem and a wave control module;
the injection type electromagnetic interference generation monitoring subsystem comprises: the device comprises a first signal source, a power amplifier, a directional coupler, a first high-power change-over switch, a second high-power change-over switch and a TR component which are connected in sequence;
The injection type electromagnetic interference generation monitoring subsystem is used for carrying out an electromagnetic interference effect test on the TR component by utilizing an interference signal sent by the first signal source;
the intensity of the interference signal sent by the first signal source is regulated through a signal intensity prediction model; the signal strength prediction model is obtained by training a short-term memory gating unit by taking the type of an interference signal at the previous moment, the frequency of the interference signal at the previous moment, the power amplification gain at the previous moment and the field intensity information set at the previous moment as inputs and the strength of the interference signal at the current moment as output;
the receive channel harmonic testing subsystem includes: the second signal source, the change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch, the fourth high-power change-over switch and the spectrum analyzer are connected in sequence; the receiving channel harmonic testing subsystem is used for testing the harmonic wave of the TR component after the electromagnetic interference effect test is carried out;
the noise figure test subsystem includes: the spectrum analyzer comprises a spectrum analyzer, a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch, wherein the first high-power change-over switch, the second high-power change-over switch, the TR component, the third high-power change-over switch and the fourth high-power change-over switch are sequentially connected; the first channel of the spectrum analyzer is connected with the second channel of the fourth high-power change-over switch, and the first channel of the spectrum analyzer is connected with the first channel of the first high-power change-over switch; the noise coefficient testing subsystem is used for testing the noise coefficient of the TR component after the electromagnetic interference effect test is carried out;
The scattering parameter and standing wave testing subsystem comprises: the vector network analyzer comprises a first high-power change-over switch, a second high-power change-over switch, a TR component, a third high-power change-over switch and a fourth high-power change-over switch which are sequentially connected; the first channel of the vector network analyzer is connected with the second channel of the first high-power change-over switch, and the second channel of the vector network analyzer is connected with the first channel of the fourth high-power change-over switch; the scattering parameter and standing wave testing subsystem is used for testing the scattering parameter and standing wave of the TR component after the electromagnetic interference effect test is carried out;
the power and gain testing subsystem includes: the second signal source, the change-over switch, the third high-power change-over switch, the TR component, the second high-power change-over switch and the power meter are connected in sequence; the power and gain testing subsystem is used for testing the power and gain of the TR component after the electromagnetic interference effect test is carried out;
the wave control module is connected with the TR component and is used for controlling the state of the TR component.
8. The TR assembly electromagnetic interference immunity automatic test system of claim 7, wherein said system further comprises: a high power load;
The high-power load is connected with the TR component through the third high-power change-over switch and is used for absorbing energy injected into the TR component when an electromagnetic interference effect test is conducted.
9. The TR assembly electromagnetic interference resistance automatic test system according to claim 7, wherein said system further comprises a programmed upper computer;
the program-controlled upper computer is respectively connected with each component in the injection type electromagnetic interference generation monitoring subsystem, each component in the receiving channel harmonic wave testing subsystem, each component in the noise coefficient testing subsystem, each component in the scattering parameter and standing wave testing subsystem, each component in the power and gain testing subsystem and the wave control module.
10. An automatic test method for anti-electromagnetic interference capability of a TR assembly, which is implemented by using the automatic test system for anti-electromagnetic interference capability of a TR assembly according to any one of claims 7 to 9, wherein the method comprises the following steps:
performing an electromagnetic interference effect test on the TR component by using an injection type electromagnetic interference generation monitoring subsystem;
testing the harmonic wave of the TR component subjected to the electromagnetic interference effect test by using a receiving channel harmonic wave testing subsystem;
Testing the noise coefficient of the TR component subjected to the electromagnetic interference effect test by using a noise coefficient testing subsystem;
the scattering parameters and standing waves of the TR component after the electromagnetic interference effect test are tested by using the scattering parameters and the standing wave test subsystem;
and testing the power and the gain of the TR component after the electromagnetic interference effect test by using a power and gain testing subsystem.
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