CN113960405A - Parameter continuously adjustable microwave effect test system and method - Google Patents
Parameter continuously adjustable microwave effect test system and method Download PDFInfo
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Abstract
The invention provides a microwave effect test system with continuously adjustable parameters and a method thereof, belonging to the field of high-power microwave effect, the system comprises: the microwave monitoring system comprises a microwave generating module and a microwave monitoring module; the microwave generation module comprises a signal source, a solid-state power amplifier, a filter and a microwave antenna which are connected in sequence; the signal source provides a microwave signal; the solid-state power amplifier is used for carrying out power amplification on the microwave signal; the filter eliminates the bottom noise of the microwave signal; the microwave antenna transmits a microwave signal; the effector module combines the reference information and the microwave signal with the background noise eliminated through a receiving antenna to form a composite signal, and displays the communication condition through whether the reference information can be demodulated; the microwave monitoring module monitors microwave signals in the composite signals; and when the communication of the effector module is interrupted, acquiring a microwave killing threshold value according to the signal peak voltage of the microwave signal in the composite signal. The invention satisfies the effect test of various application scenes, has flexible operation and more stable and reliable test result.
Description
Technical Field
The invention belongs to the field of high-power microwave effect, and particularly relates to a parameter continuously adjustable microwave effect test system and method.
Background
High power microwaves generally refer to microwaves with power greater than 100 megawatts, and due to the high power of the microwaves, electronic equipment may be damaged to various degrees after being radiated. The damage characteristic of high-power microwave to electronic equipment makes it develop rapidly as a soft killer weapon. The high-power microwave effect test guides the development direction of the high-power microwave source by researching the killing efficiency of microwave parameters to the electronic equipment, wherein the microwave parameters comprise: frequency, power, pulse width, repetition frequency, and number of pulses.
At present, two methods are mainly used for high-power microwave effect tests, wherein the first method is to directly irradiate an effector by using a high-power microwave source and research the killing mechanism of the effector by using the microwave source, and the high-power microwave irradiation effect test is called as the high-power microwave irradiation effect test for short; the second method is to directly inject high-power signals into the inside of an effector to research the killing mechanism of the effector, which is called high-power microwave injection effect test for short. The result obtained by the first method is most visual, the killing capability of the high-power microwave source to the effector can be directly verified, but the universality of the test result is poor due to the fact that parameters such as the frequency and the pulse width of the high-power microwave source are difficult to adjust, and the test result is difficult to popularize in other types of microwave source application scenes. The second method can be used for developing high-power microwave effect tests of various targets aiming at device-level effectors, can be used for researching the killing mechanism of microwaves on electronic equipment, and has poor pertinence and non-intuitive effect phenomena. The first two test methods have certain defects, and a high-power microwave effect test system and method with strong universality and intuitive effect phenomena are designed.
There are two broad classes of effectors in widespread use today, one being system-level effectors and the other being device-level effectors. The killing threshold of the effector can be directly obtained by adopting the system-level effector, the pertinence is strong, but the universality is poor, and the effector consumption cost is high. Device-level effectors are highly universal but poorly targeted.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a microwave effect test system and method with continuously adjustable parameters, and aims to solve the problem that the universality of a microwave effect test result is poor due to the fact that the existing parameters such as the frequency and the pulse width of a high-power microwave source are difficult to adjust.
In order to achieve the above object, in one aspect, the present invention provides a parameter continuously adjustable microwave irradiation effect test system, which includes a microwave generating module and a microwave monitoring module;
the microwave generating module comprises a signal source, a solid-state power amplifier, a filter and a microwave antenna which are connected in sequence; the signal source has the function of continuously adjusting the frequency, the pulse width, the repetition frequency and the number of pulses of the output pulse signal; the solid-state power amplifier has larger bandwidth, can output signals with different frequencies, and can realize the output of high-power pulse signals with various parameters by combining a signal source; the filter is used for eliminating bottom noise of the microwave signal amplified by the power; the microwave antenna is used for transmitting the microwave signal with the background noise eliminated;
during testing, the microwave generation module performs information interaction with an effector module serving as a test object through a microwave antenna; the effector module is used for combining the reference information and the microwave signal subjected to the background noise elimination through the receiving antenna to form a composite signal, and displaying the communication condition through whether the reference information can be demodulated; the effector module is suitable for all systems with radio frequency modules, mainly comprising a communication system, a navigation system, a microwave detection system and the like.
The microwave monitoring module is used for monitoring the microwave signal in the composite signal by receiving the composite signal; and when the communication of the effector module is interrupted, acquiring a microwave killing threshold value according to the signal peak voltage of the microwave signal in the composite signal.
Further preferably, the signal source generates short pulse signals in the order of tens of nanoseconds; the power of the solid-state power amplifier is more than 200 watts; the power capacity of the microwave antenna reaches hundreds of watts.
Further preferably, the effector module comprises an information source, a modulator, a transmitting antenna, a receiving antenna, a low noise amplifier, a demodulator and a display terminal;
the output end of the information source is connected with the input end of the modulator; the output end of the modulator is connected with a transmitting antenna; information interaction exists between the transmitting antenna and the receiving antenna; the input end of the low-noise amplifier is connected with the microwave monitoring module, and the output end of the low-noise amplifier is connected with the input end of the demodulator; the output end of the modulator is connected with a display terminal;
the information source is used for providing reference information; the modulator is used for modulating the reference information; the receiving antenna is used for sending the modulated reference information; the receiving antenna is used for simultaneously receiving the reference information and the microwave signal after the background noise is eliminated to form a composite signal; the low noise amplifier is used for amplifying the composite signal; a demodulator for demodulating the reference information in the amplified composite signal; and the display terminal is used for displaying the demodulated reference information.
Further preferably, the microwave monitoring module comprises a coupler, a limiter, an attenuator and an oscilloscope;
the input end of the coupler is connected with the receiving antenna, the first output end of the coupler is connected with the low noise amplifier, and the second output end of the coupler is connected with the amplitude limiter; the output end of the amplitude limiter is connected with the input end of the attenuator, and the output end of the attenuator is connected with the oscilloscope;
the coupler is used for dividing the composite signal in the receiving antenna into two paths of signals, wherein one path of signal is input to the amplitude limiter, and the other path of signal is input to the low-noise amplifier; the amplitude limiter and the attenuator are used for protecting the oscilloscope; the oscilloscope is used for monitoring the microwave signal in the composite signal, and acquiring a microwave killing threshold value according to the signal peak voltage of the microwave signal in the composite signal when the communication of the effector module is interrupted.
On the other hand, the invention provides a microwave effect injection test system with continuously adjustable parameters, which comprises a microwave generating module and a microwave monitoring module;
the output end of the microwave generating module is connected with the input end of the microwave monitoring module;
the microwave generating module comprises a signal source, a solid-state power amplifier and a filter which are connected in sequence; the output end of the filter is connected with the microwave monitoring module; the signal source has the function of continuously adjusting the frequency, the pulse width, the repetition frequency and the number of pulses of the output pulse signal; the solid-state power amplifier has larger bandwidth, can output signals with different frequencies, and can realize the output of high-power pulse signals with various parameters by combining a signal source; the filter is used for eliminating bottom noise of the microwave signal amplified by the power;
during testing, an effector module as a test object is connected with a microwave monitoring module; the effector module combines the microwave signal with the background noise eliminated and the reference information to form a composite signal, and displays the communication condition by whether the reference information can be demodulated;
the microwave monitoring module is used for receiving and monitoring the microwave signal after the background noise is eliminated, and when the communication of the effector module is interrupted, the microwave monitoring module acquires a microwave killing threshold value according to the signal peak voltage of the microwave signal after the background noise is eliminated;
the effector module is used for combining the microwave signal subjected to the background noise elimination with the reference information to form a composite signal, and displaying the communication condition by judging whether the reference information can be demodulated or not; the effector module is suitable for all systems with radio frequency modules, mainly comprising a communication system, a navigation system, a microwave detection system and the like.
Further preferably, the signal source generates short pulse signals in the order of tens of nanoseconds; the power of the solid state power amplifier is greater than 100 watts.
Further preferably, the microwave monitoring module comprises a coupler, an amplitude limiter, an attenuator and an oscilloscope which are connected in sequence;
the input end of the coupler is connected with the filter and used for receiving the microwave signal after the background noise is eliminated; the amplitude limiter and the attenuator are used for protecting the oscilloscope; the oscilloscope is used for monitoring the microwave signal after the background noise elimination, and acquiring a microwave killing threshold value according to the signal peak voltage of the microwave signal after the background noise elimination when the communication of the effector module is interrupted.
Further preferably, the effector module comprises an information source, a modulator, a low noise amplifier, a demodulator and a display terminal which are connected in sequence;
the input end of the low-noise amplifier is connected with the coupler;
the information source is used for providing reference information; the modulator is used for modulating the reference information; the low-noise amplifier is used for simultaneously receiving the reference information and the microwave signal after the background noise is eliminated to form a composite signal and amplify the composite signal; a demodulator for demodulating the reference information in the amplified composite signal; and the display terminal is used for displaying the demodulated reference information.
Based on the two microwave effect test systems with continuously adjustable parameters, the invention provides a microwave effect test method with continuously adjustable parameters, which comprises the following steps:
(1) changing one parameter of the parameters of the microwave signals by adopting a control variable method and fixing other parameters for setting;
(2) setting the transmitting power of the solid-state power amplifier;
(3) starting a solid-state power amplifier to trigger a signal source to transmit a microwave signal;
(4) combining the microwave signal and the reference information into a composite signal;
(5) observing the phenomenon of an effector module by demodulating the composite signal, judging that the communication of the effector module is interrupted if a reference signal is not demodulated from the composite signal, calculating a microwave killing threshold value through the peak voltage of the microwave signal, and turning to the step (1) until all microwave parameters are set; otherwise, judging that the effector module is in normal communication, increasing the transmitting power of the solid-state power amplifier according to a preset step length, and turning to the step (3).
Further preferably, the parameters of the microwave signal include microwave frequency, pulse width, repetition frequency and number of pulses.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
the microwave generating module provided by the invention comprises a signal source, a solid-state power amplifier and a filter which are connected in sequence; the solid-state power amplifier can be compatible with microwave signals with various parameters, so that the solid-state power amplifier can realize large-range continuous adjustment of microwave parameters such as frequency, power, pulse width, repetition frequency, pulse number and the like by combining a signal source. The high-power microwave effect system based on the solid-state power amplifier can meet the effect tests of various application scenes, is flexible to operate, and has more stable and reliable test results.
The solid-state power amplifier is developed more mature in the field of communication, and has the advantages of low price, stable performance and the like when being used as a goods shelf product, so that the solid-state power amplifier is low in cost when being used for a microwave effect test.
Compared with a system-level effector and a device-level effector, the effector module provided by the invention can make a compromise between universality and pertinence, and is easier to discover a damage mechanism compared with the system-level effector.
Drawings
FIG. 1 is a diagram of a high power microwave irradiation effect testing system with continuously adjustable parameters according to an embodiment of the present invention;
FIG. 2 is a diagram of a high power microwave injection effect testing system with continuously adjustable parameters according to an embodiment of the present invention;
fig. 3 is a flow chart of a method provided by an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
High-power microwave irradiation effect test system and method
As shown in fig. 1, the present invention provides a high power microwave irradiation effect test system with continuously adjustable parameters, which comprises a microwave generating module and a microwave monitoring module; a microwave generation module based on a solid-state power amplifier and a modularized effector module are adopted for large-range continuous adjustment of microwave parameters; the real-time microwave monitoring module can be used for accurately obtaining the power of the front end of the effector to obtain an accurate killing threshold value; the high-power microwave irradiation effect test method is realized by the following steps:
firstly, building a microwave generating module;
as shown in fig. 1, the microwave generating module includes a signal source, a solid-state power amplifier, a filter and an antenna connected in sequence;
the signal source needs to have the capability of generating short pulses of tens of nanoseconds; the solid-state power amplifier needs to be more than 200 watts; the power capacity of the antenna needs to reach hundreds of watts;
in order to prevent the signal source from being damaged by the reflected power of the solid-state power amplifier, a circulator is required to be connected between the signal source and the power amplifier;
secondly, building an effector module;
as shown in fig. 1, the effector module includes an information source, a modulator, a transmitting antenna, a receiving antenna, a low noise amplifier, a demodulator, and a display terminal; the effector module is a communication system, and can also be other types of effector modules;
in the effector module, information sent by an information source is radiated out through a sending antenna after passing through a modulator, a receiving antenna receives a signal, the signal is amplified through a low-noise amplifier and demodulated through a demodulator, and finally the signal is displayed by a display terminal; in order to prevent high power microwave signals from coupling from the transmit antenna into the effector module, a limiter and an attenuator may be connected between the modulator and the transmit antenna;
thirdly, building a microwave monitoring module;
as shown in fig. 1, the microwave monitoring module includes a coupler, a limiter, an attenuator and an oscilloscope; the coupler divides a small signal path to an oscilloscope for monitoring a high-power microwave signal in real time, and in order to protect the oscilloscope, an amplitude limiter and an attenuator are required to be arranged between the coupler and the oscilloscope;
fourthly, organizing and testing;
the test is carried out in a microwave darkroom or a test room with microwave protection;
the testing steps are shown in fig. 3, and specifically include the following steps:
step 1: setting microwave parameters;
setting parameters of the microwave signal on a signal source, wherein the parameters comprise microwave frequency, pulse width, repetition frequency and pulse number; the parameter setting method comprises the following steps: fixing a plurality of parameter values by adopting a control variable method, changing one parameter, and obtaining a test rule under the parameter;
step 2: adjusting the transmitting power of the microwave generating module;
the power setting is small at the initial stage of the test, so that the threshold of an effector is prevented from being directly exceeded; if an accurate test result needs to be obtained, the power can be adjusted by adopting smaller steps; the above operations are also performed on the signal source;
and step 3: sending microwave pulses, after setting microwave parameters, opening a switch of a solid-state power amplifier, and then triggering a signal source to emit microwaves;
and 4, step 4: observing the phenomenon of an effector module, firstly adjusting the transmitting power of the effector, and gradually increasing the power of a modulator to enable the effector module to just work in a normal communication state;
if the effect module has no obvious phenomenon after the step 3, returning to the step 2 to increase the transmitting power of the microwave generating module; if the communication of the effect object module is interrupted after the step 3, recording the reading of the signal peak voltage on the oscilloscope at the moment; at least 6 times of tests are carried out under the same parameters;
step five: calculating a microwave killing threshold value;
deriving and recording the front-end power of the effector through signal peak voltage m (V), coupler coupling degree C (dB), attenuator attenuation value A (dB), line loss L (dB) and limiter insertion loss T (dB) displayed by an oscilloscope, and calculating the microwave killing threshold Th (dBW) of the effector by using the following formula;
Th=10×lg(m2/100)+C+A+L+T
table 1 shows an example of a method for calculating a microwave killing threshold;
TABLE 1
Table 1 records the results of 8 tests, and based on the killing threshold results obtained in Table 1, one maximum and one minimum are removed, and the other values are averaged to obtain an average killing threshold ThA(ii) a As shown in Table 1, Th was removed4And Th5And averaging other values, wherein the calculation method comprises the following steps:
ThA=10×log{[10^(Th1/10)+10^(Th2/10)+10^(Th3/10)+10^(Th6/10)+10^(Th7/10)+10^(Th8/10)]/6}
the result is calculated according to the formula: thA=4.18dBW。
High-power microwave injection effect test system and method
As shown in fig. 2. The invention provides a high-power microwave injection effect test system with continuously adjustable parameters, which comprises a microwave generation module and a microwave detection system; the microwave generation module based on the solid-state power amplifier and the modularized effector module are adopted, so that the large-range continuous adjustment of microwave parameters is realized, and an intuitive effect phenomenon can be obtained; the real-time microwave monitoring module can be used for accurately obtaining the power of the front end of the effector to obtain an accurate killing threshold value;
the process of the high-power microwave injection effect test method is as follows:
firstly, building a microwave generating module;
as shown in fig. 2, the microwave generation module includes a signal source, a solid-state power amplifier, and a filter;
the signal source needs to have the capability of generating short pulses of tens of nanoseconds; the solid-state power amplifier needs to be more than 200 watts; in order to prevent the signal source from being damaged by the reflected power of the solid-state power amplifier, a circulator is required to be connected between the signal source and the power amplifier;
secondly, building an effector module;
as shown in fig. 2, the effector module includes an information source, a modulator, a low noise amplifier, a demodulator, and a display terminal; the effector module is a communication system, and can also be other types of effector modules;
in the effector module, an information source sends information to be modulated and then is transmitted to a low-noise amplifier through a cable, and the signal is amplified and then is demodulated through a demodulator and finally displayed by a display terminal; in order to prevent the demodulator from being damaged by the high-power microwave signals, a limiter and an attenuator can be connected in front of the demodulator;
thirdly, building a microwave monitoring module;
as shown in fig. 2, the microwave monitoring module includes a coupler, a limiter, an attenuator and an oscilloscope; the coupler divides a small signal to an oscilloscope for monitoring a high-power microwave signal in real time; in order to protect the oscilloscope, an amplitude limiter and an attenuator are required to be added between the coupler and the oscilloscope;
fourthly, organizing and testing;
the testing steps are shown in fig. 3, and specifically include the following steps:
step 1: setting microwave parameters;
setting parameters of the microwave signal on a signal source; the parameters include: microwave frequency, pulse width, repetition frequency and number of pulses; the parameter setting method comprises the following steps: fixing a plurality of parameter values by adopting a control variable method, changing one parameter, and obtaining a test rule under the parameter;
step 2: adjusting the transmitting power of the microwave generating module;
the power setting is small at the initial stage of the test, so that the threshold of an effector is prevented from being directly exceeded; if an accurate test result needs to be obtained, the power can be adjusted by adopting smaller steps; the above operations are also performed on the signal source;
and step 3: sending microwave pulses, after setting microwave parameters, opening a switch of a solid-state power amplifier, and then triggering a signal source to emit microwaves;
and 4, step 4: observing the phenomenon of an effector module, adjusting the emitting power of the effector in advance, and gradually increasing the power of a modulator to enable the effector module to work in a normal communication state;
if the effect module has no obvious phenomenon after the step 3, returning to the step 2 to increase the transmitting power of the microwave generating module; if the communication of the effect object module is interrupted after the step 3, recording the reading of the signal peak voltage on the oscilloscope at the moment; at least 6 times of tests are carried out under the same parameters; according to the fifth step in the high-power microwave irradiation effect test, the killing threshold of the effector in the high-power microwave injection test can be obtained similarly.
The high-power microwave irradiation effect test method with continuously adjustable parameters, disclosed by the invention, adopts the microwave generation module based on the solid-state power amplifier and the modularized effector module, realizes the large-range continuous adjustment of the microwave parameters, can monitor microwave signals in real time, has intuitive effect phenomenon, simple operation method, high test efficiency and accurate test result, and can simulate various microwave sources to carry out tests on various target effectors.
Compared with the prior art, the invention has the following advantages:
the microwave generating module provided by the invention comprises a signal source, a solid-state power amplifier and a filter which are connected in sequence; the solid-state power amplifier can be compatible with microwave signals with various parameters, so that the solid-state power amplifier can realize large-range continuous adjustment of microwave parameters such as frequency, power, pulse width, repetition frequency, pulse number and the like by combining a signal source. The high-power microwave effect system based on the solid-state power amplifier can meet the effect tests of various application scenes, is flexible to operate, and has more stable and reliable test results.
The solid-state power amplifier is developed more mature in the field of communication, and has the advantages of low price, stable performance and the like when being used as a goods shelf product, so that the solid-state power amplifier is low in cost when being used for a microwave effect test.
Compared with a system-level effector and a device-level effector, the effector module provided by the invention can make a compromise between universality and pertinence, and is easier to discover a damage mechanism compared with the system-level effector.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A microwave effect test system with continuously adjustable parameters is characterized by being a microwave irradiation effect test system and comprising a microwave generation module and a microwave monitoring module;
the microwave generating module comprises a signal source, a solid-state power amplifier, a filter and a microwave antenna which are connected in sequence; the signal source is used for providing microwave signals with different parameters which can be continuously adjusted; the solid-state power amplifier is used for performing power amplification on the microwave signal; the filter is used for eliminating bottom noise of the microwave signal amplified by power; the microwave antenna is used for sending the microwave signal with the background noise eliminated;
during testing, the microwave generation module performs information interaction with an effector module serving as a test object through a microwave antenna; the effector module combines the reference information and the microwave signal with the background noise eliminated through a receiving antenna to form a composite signal, and displays the communication condition through whether the reference information can be demodulated;
the microwave monitoring module is used for monitoring the microwave signal in the composite signal by receiving the composite signal; and when the communication of the effector module is interrupted, acquiring a microwave killing threshold value according to the signal peak voltage of the microwave signal in the composite signal.
2. A microwave effect testing system according to claim 1, wherein the signal source generates a short pulse signal in the order of tens of nanoseconds; the power of the solid-state power amplifier is more than 200 watts; the power capacity of the microwave antenna reaches hundreds of watts.
3. A microwave effect testing system according to claim 1 or 2, wherein the effector module comprises an information source, a modulator, a transmitting antenna, a receiving antenna, a low noise amplifier, a demodulator and a display terminal;
the output end of the information source is connected with the input end of the modulator; the output end of the modulator is connected with the transmitting antenna; information interaction exists between the sending antenna and the receiving antenna; the input end of the low noise amplifier is connected with the microwave monitoring module, and the output end of the low noise amplifier is connected with the input end of the demodulator; the output end of the modulator is connected with the display terminal;
the information source is used for providing reference information; the modulator is used for modulating the reference information; the receiving antenna is used for sending the modulated reference information; the receiving antenna is used for simultaneously receiving the reference information and the microwave signal with the background noise eliminated to form a composite signal; the low noise amplifier is used for amplifying the composite signal; the demodulator is used for demodulating reference information in the amplified composite signal; and the display terminal is used for displaying the demodulated reference information.
4. A microwave effect testing system according to claim 3, wherein the microwave monitoring module comprises a coupler, a limiter, an attenuator and an oscilloscope;
the input end of the coupler is connected with the receiving antenna, the first output end of the coupler is connected with the low noise amplifier, and the second output end of the coupler is connected with the amplitude limiter; the output end of the amplitude limiter is connected with the input end of the attenuator, and the output end of the attenuator is connected with the oscilloscope;
the coupler is used for dividing the composite signal in the receiving antenna into two paths of signals, wherein one path of signal is input to the amplitude limiter, and the other path of signal is input to the low noise amplifier; the amplitude limiter and the attenuator are used for protecting the oscilloscope; the oscilloscope is used for monitoring the microwave signal in the composite signal, and acquiring a microwave killing threshold value according to the signal peak voltage of the microwave signal in the composite signal when the communication of the effector module is interrupted.
5. A microwave effect test system with continuously adjustable parameters is characterized by being a microwave injection effect test system and comprising a microwave generation module and a microwave monitoring module;
the output end of the microwave generating module is connected with the input end of the microwave monitoring module;
the microwave generating module comprises a signal source, a solid-state power amplifier and a filter which are connected in sequence; the output end of the filter is connected with the microwave monitoring module; the signal source is used for providing microwave signals with different continuous parameters; the solid-state power amplifier is used for performing power amplification on the microwave signal; the filter is used for eliminating bottom noise of the microwave signal amplified by power;
during testing, an effector module as a test object is connected with the microwave monitoring module; the effector module combines the microwave signal with the background noise eliminated and the reference information to form a composite signal, and displays the communication condition by whether the reference information can be demodulated;
the microwave monitoring module is used for receiving and monitoring the microwave signals after the background noises are eliminated, and when the communication of the effector module is interrupted, the microwave killing threshold value is obtained according to the signal peak voltage of the microwave signals after the background noises are eliminated.
6. A microwave effect testing system according to claim 5, wherein the signal source generates short pulse signals in the order of tens of nanoseconds; the power of the solid-state power amplifier is more than 100 watts.
7. The microwave effect test system according to claim 5 or 6, wherein the microwave monitoring module comprises a coupler, a limiter, an attenuator and an oscilloscope which are connected in sequence;
the input end of the coupler is connected with the filter and is used for receiving the microwave signal after the background noise is eliminated; the amplitude limiter and the attenuator are used for protecting the oscilloscope; the oscilloscope is used for monitoring the microwave signal after the background noise elimination, and acquiring a microwave killing threshold value according to the signal peak voltage of the microwave signal after the background noise elimination when the communication of the effector module is interrupted.
8. The microwave effect testing system of claim 7, wherein the effector module comprises an information source, a modulator, a low noise amplifier, a demodulator, and a display terminal connected in sequence;
the input end of the low noise amplifier is connected with the coupler;
the information source is used for providing reference information; the modulator is used for modulating the reference information; the low-noise amplifier is used for simultaneously receiving the reference information and the microwave signal after the background noise is eliminated to form a composite signal and amplify the composite signal; the demodulator is used for demodulating reference information in the amplified composite signal; and the display terminal is used for displaying the demodulated reference information.
9. A microwave effect testing method based on the microwave effect testing system of claim 1 or 5, characterized by comprising the following steps:
(1) changing one parameter of the parameters of the microwave signals by adopting a control variable method and fixing other parameters for setting;
(2) setting the transmitting power of the solid-state power amplifier;
(3) starting a solid-state power amplifier to trigger a signal source to transmit a microwave signal;
(4) combining the microwave signal and the reference information into a composite signal;
(5) observing the phenomenon of an effector module by demodulating the composite signal, judging that the communication of the effector module is interrupted if a reference signal is not demodulated from the composite signal, calculating a microwave killing threshold value through the peak voltage of the microwave signal, and turning to the step (1) until all microwave parameters are set; otherwise, judging that the effector module is in normal communication, increasing the transmitting power of the solid-state power amplifier according to a preset step length, and turning to the step (3).
10. A microwave effect test method according to claim 9 wherein the parameters of the microwave signal include microwave frequency, pulse width, repetition frequency and number of pulses.
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