WO2022252059A1 - 雷达截获因子的测试方法、装置、存储介质及处理器 - Google Patents

雷达截获因子的测试方法、装置、存储介质及处理器 Download PDF

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Publication number
WO2022252059A1
WO2022252059A1 PCT/CN2021/097431 CN2021097431W WO2022252059A1 WO 2022252059 A1 WO2022252059 A1 WO 2022252059A1 CN 2021097431 W CN2021097431 W CN 2021097431W WO 2022252059 A1 WO2022252059 A1 WO 2022252059A1
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Prior art keywords
radar
signal
distance
target
antenna
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PCT/CN2021/097431
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English (en)
French (fr)
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曾小东
高鹏程
芮锡
罗海明
周榜兰
王立
樊皓
陈杰
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西南电子技术研究所（中国电子科技集团公司第十研究所）
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Priority to PCT/CN2021/097431 priority Critical patent/WO2022252059A1/zh
Publication of WO2022252059A1 publication Critical patent/WO2022252059A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • 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

Definitions

  • the present application relates to the technical field of radar detection, in particular, to a method, device, storage medium and processor for testing radar interception factors.
  • LPI radar Low Probability of Intercept
  • radar has three levels of low intercept probability: the first level is "anti-intercept", radar can effectively complete its mission, and radar signals will not be intercepted by passive electronic reconnaissance equipment.
  • the definition of the intercept factor is introduced in related technologies: the intercept factor is equal to the maximum range of the radar intercepted by the non-cooperative reconnaissance receiver and the maximum range of the radar to the reconnaissance receiver ratio.
  • the maximum operating range of the non-cooperative reconnaissance receiver to find the radar is less than the maximum operating range of the radar to find the target. At this time, the radar can first detect the non-cooperative radar reconnaissance receiver, but the other party cannot perceive the radar. Existence, own side radar is in advantage. If the interception factor is greater than 1, the maximum operating distance of the non-cooperative reconnaissance receiver to detect the radar is greater than the maximum operational distance of the radar to detect the target. At this time, the radar is detected by the non-cooperative radar reconnaissance receiver before completing its mission, and the own radar is at a disadvantage.
  • the interception factor 1
  • the maximum operating distance of the non-cooperative reconnaissance receiver to find the radar is equal to the maximum operating distance of the radar to find the target, and the own radar and the non-cooperative radar reconnaissance receiver are in an equilibrium. It can be seen that the smaller the intercept factor, the greater the radar advantage and the stronger the anti-reconnaissance capability.
  • the second level of radar LPI is "anti-location and tracking". At this time, although the radar signal is intercepted, the enemy cannot effectively locate and track the radar signal.
  • the passive positioning and tracking methods include ground/sea-air and air-air passive positioning, ground/sea -Air usually adopts multi-station coordinated positioning method, and air-air can adopt stand-alone or multi-aircraft passive positioning methods, and control radar radiation signals according to the current battlefield situation, which can destroy its positioning and tracking conditions, so as to achieve anti-positioning and tracking the goal of.
  • the third level is "anti-recognition".
  • the passive detection equipment cannot identify the enemy, type, model, individual and other attribute parameters through the intercepted signal. , by changing the characteristics of the radar signal and increasing the uncertainty of the characteristics of the radar signal, it can effectively reduce the sorting and identification ability of the enemy's passive detection.
  • the main purpose of this application is to provide a radar intercept factor testing method, device, storage medium and processor to solve the problem that there is no radar intercept factor testing method in the related art.
  • a method for testing the radar interception factor is provided.
  • the radar terminal is connected to the radar display and control computer through a network cable, and the radar target simulator is connected to the radar terminal and the power divider through a radio frequency cable.
  • the radar antenna is connected to the power divider through a radio frequency cable
  • the data analysis computer is connected to the radar display and control computer and the power meter through a network cable
  • the auxiliary antenna is connected to the power meter through a radio frequency cable, including: in the microwave anechoic chamber, the radar excitation signal sent by the radar terminal is sent to to the target device, wherein the target device includes at least a radar target simulator and a radar antenna; the radar target simulator receives the radar excitation signal and returns the radar echo signal to the radar terminal, and the radar terminal obtains the The detection distance value; the radar antenna receives the radar excitation signal and radiates it through space, and the power meter is used to measure the equivalent radiation power value of the radar signal through the auxiliary antenna; the radar interception factor is calculated according to the detection distance value and the equivalent radiation power value of the radar signal.
  • the method further includes: constructing a test environment of the radar terminal to obtain a constructed test environment, wherein the test environment includes at least the radar terminal , radar display and control computer, radar target simulator, power meter, radar antenna and auxiliary antenna; based on the radar display and control computer, set the working mode and working parameters of the radar end machine, wherein the working parameters include at least the center frequency of the radar signal and the radar Signal bandwidth; Target parameters are set for the radar target simulator, wherein the target parameters include at least the distance of the radar target, the speed of the radar target and the radar cross-sectional area of the radar target, wherein the distance of the radar target includes at least the first preset distance, The second preset distance and the third preset distance; setting power measurement parameters for the power meter, wherein the power measurement parameters include at least a frequency band for measuring power and a mode for measuring power.
  • test environment of the radar terminal is constructed, and the constructed test environment includes: adjusting the position of the radar antenna and the auxiliary antenna; powering on the radar terminal, the radar target simulator, the radar antenna and the power meter Preheating; based on the radar display and control computer, set the state of the radar antenna to the transmitting state, and set the beam of the radar emission wave to point to the normal direction of the radar antenna front.
  • sending the radar excitation signal sent by the radar end machine to the target device includes: distributing the radar excitation signal sent by the radar end machine at least including the radar excitation signal of the first path and the second path based on the power splitter; The radar excitation signal assigned by the first path is sent to the radar target simulator; the radar excitation signal assigned by the second path is sent to the radar antenna.
  • obtaining the detection range value of the radar terminal machine according to the radar echo signal includes: determining the distance of the radar target according to the radar echo signal; the radar terminal machine determines the radar power control strategy according to the distance of the radar target; adjusts the radar power control strategy according to the radar power.
  • the radar terminal The measured value of the distance is used as the detection distance value of the radar end machine under the performance requirements of the current mission.
  • a standard antenna connected to the signal source with a radio frequency cable is placed at the same position of the radar antenna on the turntable, and before the radar intercept factor is calculated according to the detection distance value and the equivalent radiation power value of the radar signal, the method also includes: using power The meter measures the received radar antenna signal power value through the auxiliary antenna, and uses the power meter to measure the signal power value of the received signal source connected to the standard antenna through the auxiliary antenna; the radar antenna signal power value, the signal source connected to the standard antenna signal power value, The port power of the standard antenna and the gain of the standard antenna at the center frequency of the radar signal are calculated to obtain the equivalent radiation power value of the radar signal.
  • calculating the radar interception factor according to the detection distance value and the equivalent radiation power value of the radar signal includes: combining the equivalent radiation power value of the radar signal with the center frequency of the radar signal, the bandwidth of the radar signal, the sensitivity of the intercepting receiver, and the detection bandwidth of the intercepting receiver Calculate the radar interception distance value; calculate the radar interception factor under the current task performance requirements according to the detection distance value and the radar interception distance value.
  • the method further includes: if the distance of the radar target is The first preset distance, calculating the ratio of the detection distance value to the intercepted distance value of the radar, if the ratio is less than the preset threshold, the radar meets the low intercept probability requirement of the radar when the distance of the radar target is the first preset distance; if the radar target The distance is the second preset distance, and the ratio of the detected distance value to the intercepted distance value of the radar is calculated.
  • the radar meets the low intercept probability requirement of the radar when the distance of the radar target is the second preset distance; If the distance of the radar target is the third preset distance, calculate the ratio of the detection distance value to the intercepted distance value of the radar, if the ratio is less than the preset threshold, the radar meets the low interception of the radar when the distance of the radar target is the third preset distance.
  • the probability requirement wherein, the first preset distance is greater than the second preset distance, the first preset distance is greater than the third preset distance, and the second preset distance is greater than the third preset distance.
  • a radar interception factor testing device is provided, the radar terminal is connected to the radar display and control computer through a network cable, and the radar target simulator is connected to the radar terminal and the power splitter through a radio frequency cable , the radar antenna is connected to the power divider through a radio frequency cable, the data analysis computer is connected to the radar display and control computer and the power meter through a network cable, and the auxiliary antenna is connected to the power meter through a radio frequency cable, including: the first sending unit, used to transmit the radar in the microwave anechoic chamber The radar excitation signal sent by the terminal machine is sent to the target device, wherein the target device includes at least a radar target simulator and a radar antenna; a first receiving unit is used for the radar target simulator to receive the radar excitation signal and return the radar echo The signal is sent to the radar terminal, and the radar terminal obtains the detection distance value of the radar terminal according to the radar echo signal; the second receiving unit is used for the radar antenna to receive the radar ex
  • the device further includes: a first construction unit, configured to construct the test environment of the radar terminal before sending the radar excitation signal sent by the radar terminal to the target device, to obtain the constructed test environment, wherein,
  • the test environment includes at least a radar terminal, a radar display and control computer, a radar target simulator, a power meter, a radar antenna, and an auxiliary antenna; the first setting unit is used to set the working mode and working parameters of the radar terminal based on the radar display and control computer.
  • the working parameters include at least the center frequency of the radar signal and the bandwidth of the radar signal
  • the second setting unit is used to set the target parameters for the radar target simulator, wherein the target parameters include at least the distance of the radar target, the speed of the radar target and the radar target The radar cross-sectional area of the target, wherein the distance of the radar target includes at least a first preset distance, a second preset distance, and a third preset distance
  • a third setting unit is used to set power measurement parameters for the power meter, wherein, The power measurement parameters include at least a frequency band for measuring power and a mode for measuring power.
  • the first construction unit includes: a first adjustment module, used to adjust the positions of the radar antenna and the auxiliary antenna; Power-on and preheating; the first setting module is used to set the state of the radar antenna to the transmitting state based on the radar display and control computer, and set the beam of the radar transmitting wave to point to the normal direction of the radar antenna front.
  • the first sending unit includes: a first distribution module, which is used to distribute the radar excitation signal sent by the radar end machine based on the power divider at least including the first and second paths of the radar excitation signal; The module is used to send the radar excitation signal assigned by the first path to the radar target simulator; the second sending module is used to send the radar excitation signal assigned by the second path to the radar antenna.
  • a first distribution module which is used to distribute the radar excitation signal sent by the radar end machine based on the power divider at least including the first and second paths of the radar excitation signal
  • the module is used to send the radar excitation signal assigned by the first path to the radar target simulator
  • the second sending module is used to send the radar excitation signal assigned by the second path to the radar antenna.
  • the first receiving unit includes: a first determination module, used to determine the distance of the radar target according to the radar echo signal; the radar terminal machine determines the radar power control strategy according to the distance of the radar target; a first adjustment module, used to determine the radar power control strategy according to the radar echo signal
  • the power control strategy adjusts the transmission power of the radar terminal, and completes the measurement of the radar target distance and radar target speed through the radar terminal.
  • the radar terminal The measured value of the distance between the aircraft and the radar target is used as the detection distance value of the radar end machine under the performance requirements of the current mission.
  • the device also includes: a third receiving unit, which is used to place a standard antenna connected to the signal source with a radio frequency cable at the same position as the radar antenna on the turntable, and calculate according to the detection distance value and the equivalent radiation power value of the radar signal
  • the power meter is used to measure the received radar antenna signal power value through the auxiliary antenna, and the power meter is used to measure the signal power value of the received signal source connected to the standard antenna through the auxiliary antenna
  • the second calculation unit is used to measure The radar antenna signal power value, the signal power value of the measured signal source connected to the standard antenna, the port power of the standard antenna, and the gain of the standard antenna at the center frequency of the radar signal are calculated to obtain the equivalent radiation power value of the radar signal.
  • the first calculation unit includes: a first calculation module, which is used to combine the radar signal equivalent radiation power value with the radar signal center frequency, radar signal bandwidth, intercept receiver sensitivity, and intercept receiver detection bandwidth to calculate the radar intercepted distance value ;
  • the second calculation module is used to calculate the radar interception factor under the performance requirements of the current mission according to the detection distance value and the radar interception distance value.
  • the device also includes: a third calculation unit, which is used to calculate the intercepted distance of the radar by combining the radar signal equivalent radiation power value with the radar signal center frequency, the radar signal bandwidth, the sensitivity of the intercepting receiver, and the detection bandwidth of the intercepting receiver , if the distance of the radar target is the first preset distance, calculate the ratio of the detection distance value to the intercepted distance value of the radar, if the ratio is less than the preset threshold, then the radar meets the requirement that the radar target distance is the first preset distance.
  • a third calculation unit which is used to calculate the intercepted distance of the radar by combining the radar signal equivalent radiation power value with the radar signal center frequency, the radar signal bandwidth, the sensitivity of the intercepting receiver, and the detection bandwidth of the intercepting receiver , if the distance of the radar target is the first preset distance, calculate the ratio of the detection distance value to the intercepted distance value of the radar, if the ratio is less than the preset threshold, then the radar meets the requirement that the radar target distance is the first preset
  • the fourth calculation unit is used to calculate the ratio of the detection distance value to the intercepted distance value of the radar if the distance of the radar target is the second preset distance, and if the ratio is less than the preset threshold value, the radar meets the distance of the radar target The low intercept probability requirement of the radar when the second preset distance;
  • the fifth calculation unit if the distance of the radar target is the third preset distance, calculate the ratio of the detection distance value to the radar intercepted distance value, if the ratio is less than the preset If the threshold is set, the radar meets the low intercept probability requirement of the radar when the distance of the radar target is the third preset distance, wherein the first preset distance is greater than the second preset distance, the first preset distance is greater than the third preset distance, The second preset distance is greater than the third preset distance.
  • the radar terminal is connected to the radar display and control computer through a network cable
  • the radar target simulator is connected to the radar terminal and the power divider through a radio frequency cable
  • the radar antenna is connected to the power divider through a radio frequency cable
  • the data analysis computer is connected to the power divider through a network cable
  • the auxiliary antenna is connected to the power meter through the radio frequency cable
  • the radar excitation signal sent by the radar end machine is sent to the target device in the microwave anechoic chamber, wherein the target device includes at least a radar target simulator and a radar Antenna
  • the radar target simulator receives the radar excitation signal and returns the radar echo signal to the radar end machine, and the radar end machine obtains the detection distance value of the radar end machine according to the radar echo signal
  • the radar antenna receives the radar excitation signal and radiates it out through space
  • the power meter is used to measure the equivalent radiation power value of the radar signal through the auxiliary antenna
  • the radar interception is used to measure the equivalent radiation power value of the radar signal through
  • the detection distance value of the radar end machine is obtained, and the radar interception factor is obtained by combining the equivalent radiation power value of the radar signal measured by the power meter, and then realized Through the test of radar intercept factor, the effect of radar intercept factor can be obtained accurately.
  • Fig. 1 is the flow chart of the testing method of the radar intercept factor provided according to the embodiment of the present application
  • Fig. 2 is the test principle block diagram of the test method system of the radar interception factor provided according to the embodiment of the present application;
  • Fig. 3 is a flow chart of measuring the equivalent radiated power of the radar under task performance by using the comparison method according to an embodiment of the present application;
  • Fig. 4 is a schematic diagram of a radar intercept factor testing device provided according to an embodiment of the present application.
  • a method for testing a radar intercept factor is provided.
  • FIG. 1 is a flowchart of a method for testing radar intercept factors according to an embodiment of the present application. As shown in Figure 1, the method includes the following steps:
  • Step S101 in the microwave anechoic chamber, send the radar excitation signal sent by the radar terminal to the target device, wherein the target device includes at least a radar target simulator and a radar antenna.
  • the radar end machine sends the radar excitation signal to the target device. It needs to assign the path of the excitation signal first, and then send the distributed radar excitation signal to the target device.
  • sending the radar excitation signal sent by the radar end machine to the target device includes: at least including the radar excitation signal sent by the radar end machine based on the power divider The distribution of the radar excitation signal of the first and the second path; send the radar excitation signal assigned by the first path to the radar target simulator; send the radar excitation signal assigned by the second path to the radar antenna .
  • the radar excitation signal is divided into at least two paths, and the radar end machine sends the radar excitation signal distributed by the first path to the radar target simulator, and the radar end machine distributes it through the second path.
  • the final radar excitation signal is sent to the radar antenna, and the corresponding radar signal gain is generated to facilitate the measurement and calculation of the subsequent radar signal power.
  • the radar end machine Before the radar end machine sends the radar excitation signal to the target device, it is necessary to build a radar test signal environment for the radar end machine device to meet the test conditions of the radar interception factor of this application.
  • the method before sending the radar excitation signal sent by the radar terminal to the target device, the method further includes: constructing the test environment of the radar terminal, and obtaining The test environment after construction, wherein the test environment includes at least the radar terminal, radar display and control computer, radar target simulator, power meter, radar antenna and auxiliary antenna; The setting of, wherein, working parameter comprises radar signal center frequency and radar signal bandwidth at least; Target parameter is set to radar target simulator, wherein, target parameter comprises the distance of radar target at least, the speed of radar target and the radar reflection cross-sectional area of radar target , wherein the distance of the radar target includes at least the first preset distance, the second preset distance and the third preset distance; the power measurement parameters are set for the power meter, wherein the power measurement parameters include at least the frequency band of the measurement power, the frequency band of the measurement power model.
  • the construction of the test environment for the radar terminal is one of the important links in the radar interception factor test of this application.
  • the test environment for the radar terminal After construction includes: adjusting the position of the radar antenna and auxiliary antenna; powering on and preheating the radar terminal, radar target simulator, radar antenna and power meter; The state of the antenna is set to the transmitting state, and the beam of the radar transmitting wave is set to the normal direction of the radar antenna front.
  • the radar terminal of the radar display and control computer is connected through a network cable
  • the radar terminal and the radar target simulator of the power splitter are connected through a radio frequency cable
  • the power splitter is connected through a radio frequency cable
  • the radar antenna is connected to the radar display and control computer and the data analysis computer of the power meter through the network cable
  • the auxiliary antenna of the power meter is connected to the power meter through the radio frequency cable.
  • the test environment of the terminal machine is at least composed of radar terminal machine, radar display and control computer, radar target simulator, power meter, radar antenna and auxiliary antenna.
  • the radar display and control computer sets the working mode and working parameters of the radar terminal machine, and the radar The target simulator sets the target parameters, and the power meter sets the power measurement parameters.
  • the test conditions of the radar interception factor of the application are met.
  • the above-mentioned microwave anechoic chamber The construction of the test environment and the parameter configuration of the radar terminal, the radar target simulator and the power meter enable the test signal to traverse different operating modes and parameters of the radar, and obtain comprehensive test data of the radar system. Therefore, the test method of this application The operation is more convenient and the implementability is stronger.
  • Step S102 the radar target simulator receives the radar excitation signal and returns the radar echo signal to the radar terminal, and the radar terminal obtains the detection distance value of the radar terminal according to the radar echo signal.
  • obtaining the detection distance value of the radar end machine according to the radar echo signal includes: determining the distance of the radar target according to the radar echo signal; The distance of the target determines the radar power control strategy; adjust the transmit power of the radar end machine according to the radar power control strategy, and complete the measurement of the radar target distance and radar target speed through the radar end machine.
  • the measured value of the distance between the radar end machine and the radar target is taken as the detection distance value of the radar end machine under the performance requirements of the current task.
  • the specific steps of the radar power control strategy are as follows: First, according to the distance of the radar target set in the above steps, the radar reflection cross-sectional area of the radar target, and the center frequency of the radar signal, calculate the radar emission required by the radar under the performance requirements of the current detection task Equivalent radiated power, the equation for calculating the equivalent radiated power of radar emission is:
  • R D is the distance value of the radar target
  • ERP is the equivalent radiation power of the radar
  • f is the center frequency of the radar signal
  • ⁇ is the radar reflection cross-sectional area of the radar target
  • P r is the radar receiving power.
  • the minimum equivalent radiated power ERP min required for radar detection is:
  • ERP min S RD +40 ⁇ lg R D +20 ⁇ lg f+103.43-10 ⁇ lg ⁇
  • S RD is the radar receiver sensitivity
  • ERP max is the maximum equivalent radiated power of the radar, Indicates the lower integer, ⁇ P is the power control step.
  • the radar end machine sends the radar excitation signal assigned by the first path to the radar target simulator, and the radar target simulator responds to generate a radar echo signal, and the radar echo signal is input to the radar end machine through a radio frequency cable , the radar end machine calculates the distance and speed of the radar target according to the received radar echo signal.
  • the radar target distance and target speed calculated by the radar adjusts in real time according to the distance of the radar target and based on the radar power control strategy
  • the radiation power of the radar end machine, the distance of the radar target calculated by the radar at this time is the detection distance under the current mission performance of the radar; when the radar target distance and target speed calculated by the radar do not meet the accuracy requirements, the radar end machine uses the maximum power radiation.
  • Step S103 the radar antenna receives the radar excitation signal, radiates it out through space, and uses a power meter to measure the equivalent radiated power value of the radar signal through the auxiliary antenna.
  • the radar end machine sends the radar excitation signal assigned by the second path to the radar antenna, and radiates it out through space.
  • the power meter is used to measure the power value of the radar antenna signal through the auxiliary antenna.
  • a standard antenna connected to the signal source with a radio frequency cable is placed at the same position of the radar antenna on the turntable.
  • the method also includes: using a power meter to measure the power value of the received radar antenna signal through the auxiliary antenna, and using the power meter to measure the signal power value of the received signal source connected to the standard antenna through the auxiliary antenna; Calculate the measured radar antenna signal power value, the measured signal power value of the signal source connected to the standard antenna, the port power of the standard antenna, and the gain of the standard antenna at the center frequency of the radar signal to obtain the equivalent radiation power value of the radar signal.
  • the radar antenna adopts circular polarization
  • the standard antenna adopts linear polarization
  • the auxiliary antenna and radar antenna adopt the same-rotation circular polarization
  • the standard antenna is set on the turntable in the way of vertical polarization and horizontal polarization respectively, and the azimuth and elevation angle of the turntable are fine-tuned by the turntable controller, so that the transmitting beam of the standard antenna is aligned at the same position as the beam of the auxiliary antenna
  • the signal The source radiates signals according to the set parameters, set the type of signal emitted by the signal source to be consistent with the radar signal, use a power meter to measure the power value of the signal source signal radiated by the signal source connected to the standard antenna through the auxiliary antenna, and obtain the received signal source connected to the standard antenna Then calculate the measured signal power value of the radar antenna, the signal power value of the measured signal source connected to the standard antenna, the port power of the standard
  • Fig. 3 is a flow chart of measuring the equivalent radiated power of the radar under task performance by using the comparison method according to the embodiment of the present application.
  • the radar tracks the target device stably, measure the received radar signal power value P 0 with the power meter, calibrate the standard antenna port power P 1 with the power meter, turn on the signal source to radiate, and measure the received signal power value on the power meter.
  • the port power of the standard antenna is P 1
  • the received signal power of the power meter through the auxiliary antenna is P 2V
  • the received signal power of the power meter through the auxiliary antenna is P 2H
  • the calculation method of the signal source signal power value P 2 in the case where the standard antenna is equivalent to circular polarization is:
  • the units of P 2 , P 2V , and P 2H are dBm.
  • Step S104 calculating the radar interception factor according to the detection distance value and the equivalent radiation power value of the radar signal.
  • the radar signal equivalent radiation power value is calculated based on the radar signal power value combined with the signal source connection standard antenna signal power value.
  • the radar signal equivalent radiation power value is combined with the radar signal center frequency, radar signal bandwidth, intercept receiver sensitivity, intercept receiver
  • the radar intercepted distance value is calculated according to the radar detection bandwidth, and the radar interception factor is calculated according to the ratio of the radar intercepted distance value to the radar detection distance value.
  • calculating the radar interception factor according to the detection distance value and the radar signal equivalent radiation power value includes: combining the radar signal equivalent radiation power value with the radar signal center Frequency, radar signal bandwidth, intercept receiver sensitivity, and intercept receiver detection bandwidth calculate the radar intercepted distance value; calculate the radar intercept factor under the current mission performance requirements based on the detection distance value and the radar intercepted distance value.
  • the radar intercepted distance value is calculated according to the radar signal equivalent radiation power calculated in the above step S103 in combination with the radar signal center frequency, radar signal bandwidth, intercept receiver sensitivity, and intercept receiver detection bandwidth, wherein the radar signal equivalent radiation
  • the power value varies according to the distance of the radar target, and the calculated radar intercepted distance value will also be different accordingly, reflecting the comprehensiveness of the radar interception factor test system of the technical solution of the embodiment of the present application.
  • the radar signal equivalent radiation power value is combined with the radar signal center frequency, the radar signal bandwidth, the sensitivity of the intercepting receiver, and the detection bandwidth of the intercepting receiver to calculate the radar
  • the method also includes: if the distance of the radar target is the first preset distance, calculating the ratio of the detection distance value to the radar intercepted distance value, if the ratio is less than the preset threshold, the radar meets the radar target distance of The low intercept probability requirement of the radar at the first preset distance; if the distance of the radar target is the second preset distance, calculate the ratio of the detection distance value to the intercepted distance value of the radar, if the ratio is less than the preset threshold, the radar meets the radar target The low intercept probability requirement of the radar when the distance is the second preset distance; if the distance of the radar target is the third preset distance, calculate the ratio of the detection distance value to the radar intercepted distance value, if the ratio is less than the
  • the first preset distance is 80km
  • the second preset distance is 40km
  • the third preset distance is 10km.
  • the radar detection distance R D1 and the radar signal equivalent radiation power value ERP 1 are at this time;
  • the radar detection distance R D2 and the radar signal equivalent Radiation power value ERP 2 when the first preset distance is 80km, radar detection distance R D3 , radar signal equivalent radiation power value ERP 3 , radar signal equivalent radiation power value ERP 1 , radar signal equivalent radiation power value ERP 3 obtained according to the above calculation respectively ERP 2 and ERP 3 combine radar signal center frequency f, radar signal bandwidth B s , intercept receiver sensitivity S I , intercept receiver detection bandwidth B I to calculate radar intercepted distance values R I1 , R I2 , and R I3 , where R The calculation formula of Ii is:
  • the radar has low interception under the performance requirements of the detection task whose distance to the radar target is the first preset distance, the second preset distance and the third preset distance probability performance
  • the preset threshold value of the radar intercept factor obtained according to the ratio of the detection distance value to the radar intercepted distance value is generally the number 1.
  • the embodiment of the present application provides a method for testing the radar interception factor.
  • the radar terminal is connected to the radar display and control computer through a network cable
  • the radar target simulator is connected to the radar terminal and the power divider through a radio frequency cable
  • the radar antenna is connected to the radar terminal through a radio frequency cable.
  • the target equipment includes at least a radar target simulator and a radar antenna; the radar target simulator receives the radar excitation signal and returns the radar echo signal to the radar terminal, and the radar terminal obtains the detection distance value of the radar terminal according to the radar echo signal; the radar antenna The radar excitation signal is radiated through space, and the power meter is used to measure the equivalent radiation power value of the radar signal through the auxiliary antenna; the radar interception factor is calculated according to the detection distance value and the equivalent radiation power value of the radar signal, which solves the problem that there is no radar in the related technology Problems with the interception factor test method.
  • the detection distance value of the radar end machine is obtained, and the radar interception factor is obtained by combining the equivalent radiation power value of the radar signal measured by the power meter, and then realized Through the test of radar intercept factor, the effect of radar intercept factor can be obtained accurately.
  • the embodiment of the present application also provides a test device for the radar intercept factor.
  • the test device for the radar intercept factor in the embodiment of the present application can be used to perform the test for the radar intercept factor provided in the embodiment of the present application method.
  • the following is an introduction to the radar intercept factor testing device provided in the embodiment of the present application.
  • Fig. 4 is a schematic diagram of a radar intercept factor testing device according to an embodiment of the present application.
  • a test device for radar interception factor provided by the embodiment of the present application, the radar end machine is connected to the radar display and control computer through a network cable, the radar target simulator is connected to the radar end machine and the power splitter through a radio frequency cable, and the radar antenna
  • the power splitter is connected through a radio frequency cable
  • the data analysis computer is connected to the radar display and control computer and the power meter through a network cable
  • the auxiliary antenna is connected to the power meter through a radio frequency cable, including: a first sending unit 401, a first receiving unit 402, and a second receiving unit 403 , the first calculation unit 404 .
  • the first sending unit 401 is used to send the radar excitation signal sent by the radar end machine to the target device in the microwave anechoic chamber, wherein the target device includes at least a radar target simulator and a radar antenna;
  • the first receiving unit 402 is used for the radar target simulator to receive the radar excitation signal and return the radar echo signal to the radar terminal, and the radar terminal obtains the detection distance value of the radar terminal according to the radar echo signal;
  • the second receiving unit 403 is used for the radar antenna to receive the radar excitation signal, radiate it out through space, and use a power meter to measure the equivalent radiation power value of the radar signal through the auxiliary antenna;
  • the first calculation unit 404 is configured to calculate the radar interception factor according to the detection distance value and the equivalent radiation power value of the radar signal.
  • the embodiment of the present application provides a test device for radar interception factor.
  • the radar terminal is connected to the radar display and control computer through a network cable
  • the radar target simulator is connected to the radar terminal and the power divider through a radio frequency cable
  • the radar antenna is connected to the radar terminal through a radio frequency cable.
  • the power divider, the data analysis computer is connected to the radar display and control computer and the power meter through the network cable, the auxiliary antenna is connected to the power meter through the radio frequency cable, and the radar excitation signal sent by the radar terminal is sent to the target through the first sending unit 401 in the microwave anechoic chamber equipment, wherein the target equipment includes at least a radar target simulator and a radar antenna; the first receiving unit 402 radar target simulator receives the radar excitation signal and returns the radar echo signal to the radar end machine, and the radar end machine obtains the radar signal according to the radar echo signal.
  • the radar interception factor is obtained by calculating the equivalent radiation power value of the signal, which solves the problem that there is no testing method for the radar interception factor in the related art.
  • the detection distance value of the radar end machine is obtained, and the radar interception factor is obtained by combining the equivalent radiation power value of the radar signal measured by the power meter, and then realized Through the test of radar intercept factor, the effect of radar intercept factor can be obtained accurately.
  • the device further includes: a first construction unit, used to test the radar terminal
  • the test environment of the machine is constructed to obtain the constructed test environment, wherein the test environment includes at least the radar terminal machine, the radar display and control computer, the radar target simulator, the power meter, the radar antenna and the auxiliary antenna;
  • the first setting unit is used for Based on the radar display and control computer, the working mode and working parameters of the radar terminal are set, wherein the working parameters include at least the center frequency of the radar signal and the bandwidth of the radar signal;
  • the second setting unit is used to set the target parameters for the radar target simulator, wherein , the target parameters include at least the distance of the radar target, the speed of the radar target, and the radar reflection cross-sectional area of the radar target, wherein the distance of the radar target includes at least a first preset distance, a second preset distance, and a third preset distance;
  • a setting unit configured to set power measurement parameters for the power meter, wherein the power measurement parameters at least include
  • the first construction unit includes: a first adjustment module, used to adjust the positions of the radar antenna and the auxiliary antenna; a first processing module, used to Power on and preheat the radar terminal, radar target simulator, radar antenna and power meter; the first setting module is used to set the state of the radar antenna to the transmitting state based on the radar display and control computer, and set the beam of the radar transmitting wave Pointing to the normal direction of the radar antenna front.
  • the first sending unit 401 includes: a first distribution module, configured to perform at least the first distribution of the radar excitation signal sent by the radar terminal based on the power divider. The distribution of the radar excitation signal of one and the second path; the first sending module is used to send the radar excitation signal after the distribution of the first path to the radar target simulator; the second sending module is used to send the radar excitation signal through the second path The radar excitation signal after the distribution of the two paths is sent to the radar antenna.
  • the first receiving unit 402 includes: a first determination module, configured to determine the distance of the radar target according to the radar echo signal; a second determination module, configured to The radar terminal machine determines the radar power control strategy according to the distance of the radar target; the first adjustment module is used to adjust the transmit power of the radar terminal machine according to the radar power control strategy, and complete the adjustment of the radar target distance and the radar target speed through the radar terminal machine For measurement, when the measurement accuracy of the radar target distance and radar target speed by the radar terminal machine meets the requirements, the measured value of the distance from the radar terminal machine to the radar target is used as the detection distance value of the radar terminal machine under the current mission performance requirements.
  • the device also includes: a third receiving unit, which is used to place a standard antenna connected to the signal source with a radio frequency cable at the same position as the radar antenna on the turntable, Before calculating the radar interception factor according to the detection distance value and the equivalent radiation power value of the radar signal, use the power meter to measure the received radar antenna signal power value through the auxiliary antenna, and use the power meter to measure the received signal source connection through the auxiliary antenna The signal power value of the standard antenna; the second calculation unit is used to calculate the signal power value of the radar antenna, the signal power value of the signal source connected to the standard antenna, the port power of the standard antenna, and the gain of the standard antenna at the center frequency position of the radar signal, Obtain the equivalent radiated power value of the radar signal.
  • a third receiving unit which is used to place a standard antenna connected to the signal source with a radio frequency cable at the same position as the radar antenna on the turntable, Before calculating the radar interception factor according to the detection distance value and the equivalent radiation power value of the radar signal, use the power
  • the first calculation unit 404 includes: a first calculation module, which is used to combine the radar signal equivalent radiation power value with the radar signal center frequency, radar signal bandwidth 1. Calculate the radar intercepted distance value by intercepting receiver sensitivity and intercepting receiver detection bandwidth; the second calculation module is used to calculate the radar interception factor under the current task performance requirements according to the detection distance value and the radar intercepted distance value.
  • the device further includes: a third calculation unit, which is used to combine the radar signal equivalent radiation power value with the radar signal center frequency, radar signal bandwidth, After calculating the radar intercepted distance by intercepting receiver sensitivity and intercepting receiver detection bandwidth, if the distance of the radar target is the first preset distance, calculate the ratio of the detection distance value to the radar intercepted distance value, if the ratio is less than the preset threshold value, then The radar meets the low intercept probability requirement of the radar when the distance of the radar target is the first preset distance; the fourth calculation unit is used to calculate the difference between the detection distance value and the intercepted distance value of the radar if the distance of the radar target is the second preset distance Ratio, if the ratio is less than the preset threshold, the radar meets the low intercept probability requirement of the radar when the distance of the radar target is the second preset distance; the fifth calculation unit is used to calculate if the distance of the radar target is the third preset distance The ratio of the detection distance value
  • the testing device of radar intercept factor comprises processor and memory, and above-mentioned first sending unit 401, the first receiving unit 402, the second receiving unit 403, the first calculation unit 404 etc. are all stored in memory as program unit, by processor The above program units stored in the memory are executed to realize corresponding functions.
  • the processor includes a kernel, and the kernel fetches corresponding program units from the memory.
  • One or more kernels can be set to test the radar interception factor by adjusting the kernel parameters.
  • Memory may include non-permanent memory in computer-readable media, in the form of random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), memory including at least one memory chip.
  • RAM random access memory
  • ROM read-only memory
  • flash RAM flash memory
  • An embodiment of the present invention provides a storage medium on which a program is stored, and when the program is executed by a processor, a method for testing the radar intercept factor is realized.
  • An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the radar intercept factor testing method is executed when the program is running.
  • An embodiment of the present invention provides a device, which includes a processor, a memory, and a program stored in the memory and operable on the processor.
  • the processor executes the program, the following steps are implemented: the radar terminal is connected to the radar display and control computer through a network cable , the radar target simulator is connected to the radar terminal and the power divider through the radio frequency cable, the radar antenna is connected to the power divider through the radio frequency cable, the data analysis computer is connected to the radar display and control computer and the power meter through the network cable, and the auxiliary antenna is connected to the power meter through the radio frequency cable.
  • the radar excitation signal sent by the radar terminal is sent to the target device, wherein the target device includes at least a radar target simulator and a radar antenna; the radar target simulator receives the radar excitation signal and returns the radar echo signal to The radar terminal machine, the radar terminal machine obtains the detection distance value of the radar terminal machine according to the radar echo signal; the radar antenna receives the radar excitation signal, radiates it out through space, and uses the power meter to measure the equivalent radiation power value of the radar signal through the auxiliary antenna; according to the detection The radar intercept factor is calculated from the distance value and the equivalent radiated power value of the radar signal.
  • the method also includes: constructing the test environment of the radar end machine to obtain the constructed test environment, wherein, The test environment includes at least the radar terminal, radar display and control computer, radar target simulator, power meter, radar antenna and auxiliary antenna; based on the radar display and control computer, set the working mode and working parameters of the radar terminal, among which the working parameters are at least Including the center frequency of the radar signal and the bandwidth of the radar signal; setting target parameters for the radar target simulator, wherein the target parameters include at least the distance of the radar target, the speed of the radar target and the radar reflection cross-sectional area of the radar target, wherein the distance of the radar target is at least Including a first preset distance, a second preset distance and a third preset distance; setting power measurement parameters for the power meter, wherein the power measurement parameters include at least a frequency band for measuring power and a mode for measuring power.
  • the processor executes the program, the following steps are also implemented: constructing the test environment of the radar terminal, and the constructed test environment includes: adjusting the position of the radar antenna and the auxiliary antenna; adjusting the position of the radar terminal, radar target simulator, radar The antenna and power meter are powered on and preheated; based on the radar display and control computer, the state of the radar antenna is set to the transmitting state, and the beam of the radar transmitting wave is set to the normal direction of the radar antenna front.
  • sending the radar excitation signal sent by the radar end machine to the target device includes: performing at least the first path and the second path based on the power splitter for the radar excitation signal sent by the radar end machine Distribution of the radar excitation signal; sending the radar excitation signal assigned by the first path to the radar target simulator; sending the radar excitation signal assigned by the second path to the radar antenna.
  • obtaining the detection distance value of the radar end machine according to the radar echo signal includes: determining the distance of the radar target according to the radar echo signal; and determining the radar power control strategy by the radar end machine according to the distance of the radar target; According to the radar power control strategy, adjust the transmission power of the radar terminal, and complete the measurement of the radar target distance and radar target speed through the radar terminal.
  • the radar terminal will The measured value of the distance between the radar end machine and the radar target is used as the detection distance value of the radar end machine under the performance requirements of the current task.
  • the processor executes the program, the following steps are also implemented: place a standard antenna connected to the signal source with a radio frequency cable at the same position as the radar antenna on the turntable, and before calculating the radar interception factor according to the detection distance value and the equivalent radiation power value of the radar signal,
  • the method also includes: using a power meter to measure the power value of the received radar antenna signal through the auxiliary antenna, using the power meter to measure the signal power value of the received signal source connected to the standard antenna through the auxiliary antenna; Connect the signal power value of the standard antenna, the port power of the standard antenna, and the gain of the standard antenna at the center frequency of the radar signal for calculation to obtain the equivalent radiation power value of the radar signal.
  • calculating the radar interception factor according to the detection distance value and the radar signal equivalent radiation power value includes: combining the radar signal equivalent radiation power value with the radar signal center frequency, the radar signal bandwidth, and the interception receiver Calculate the intercepted distance value of the radar based on the sensitivity and the detection bandwidth of the intercepting receiver; calculate the radar interception factor under the performance requirements of the current mission according to the detection distance value and the intercepted distance value of the radar.
  • the method after calculating the intercepted distance of the radar by combining the radar signal equivalent radiation power value with the radar signal center frequency, the radar signal bandwidth, the sensitivity of the intercepting receiver, and the detection bandwidth of the intercepting receiver, the method also includes : If the distance of the radar target is the first preset distance, calculate the ratio of the detection distance value to the intercepted distance value of the radar. If the ratio is less than the preset threshold, the radar meets the radar target distance when the first preset distance.
  • Interception probability requirements if the distance of the radar target is the second preset distance, calculate the ratio of the detection distance value to the radar intercepted distance value, if the ratio is less than the preset threshold, the radar meets the radar target distance when the second preset distance.
  • the low intercept probability requirement of the radar if the distance of the radar target is the third preset distance, calculate the ratio of the detection distance value to the intercepted distance value of the radar, if the ratio is less than the preset threshold, the radar meets the third preset distance of the radar target.
  • the low intercept probability requirement of the radar when setting the distance, wherein the first preset distance is greater than the second preset distance, the first preset distance is greater than the third preset distance, and the second preset distance is greater than the third preset distance.
  • the devices in this article can be servers, PCs, PADs, mobile phones, etc.
  • the present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that is initialized with the following method steps: in the microwave anechoic chamber, the radar excitation signal sent by the radar terminal is sent to the target device,
  • the target device includes at least a radar target simulator and a radar antenna;
  • the radar target simulator receives the radar excitation signal and returns the radar echo signal to the radar terminal, and the radar terminal obtains the detection distance value of the radar terminal according to the radar echo signal;
  • the radar antenna receives the radar excitation signal and radiates it through space.
  • the power meter is used to measure the equivalent radiation power value of the radar signal through the auxiliary antenna; the radar interception factor is calculated according to the detection distance value and the equivalent radiation power value of the radar signal.
  • the method When executed on the data processing device, it is also suitable for executing a program that is initialized with the following method steps: before sending the radar excitation signal sent by the radar end machine to the target device, the method also includes: performing a test on the test environment of the radar end machine Build and obtain the test environment after construction, wherein the test environment includes at least the radar terminal, radar display and control computer, radar target simulator, power meter, radar antenna and auxiliary antenna; based on the radar display and control computer, the radar terminal is operated and the setting of working parameters, wherein the working parameters include at least the center frequency of the radar signal and the bandwidth of the radar signal; the target parameters are set for the radar target simulator, wherein the target parameters include at least the distance of the radar target, the speed of the radar target and the radar target speed of the radar target Reflection cross-sectional area, wherein the distance of the radar target includes at least a first preset distance, a second preset distance and a third preset distance; power measurement parameters are set for the power meter, wherein the power measurement parameters include at
  • constructing the test environment of the radar terminal and obtaining the constructed test environment includes: adjusting the positions of the radar antenna and the auxiliary antenna; Preheat the radar terminal, radar target simulator, radar antenna and power meter; set the state of the radar antenna to the transmitting state based on the radar display and control computer, and set the beam pointing of the radar transmitting wave to the direction of the radar antenna front normal direction.
  • sending the radar excitation signal sent by the radar end machine to the target device includes: using the radar excitation signal sent by the radar end machine based on the power divider at least Assign the radar excitation signal including the first and second paths; send the radar excitation signal assigned by the first path to the radar target simulator; send the radar excitation signal assigned by the second path to radar antenna.
  • obtaining the detection range value of the radar end machine according to the radar echo signal includes: determining the distance of the radar target according to the radar echo signal; Determine the radar power control strategy according to the distance of the radar target; adjust the transmit power of the radar end machine according to the radar power control strategy, and complete the measurement of the radar target distance and radar target speed through the radar end machine.
  • the radar end machine compares the radar target distance and When the measurement accuracy of the radar target speed meets the requirements, the measured value of the distance between the radar terminal machine and the radar target is taken as the detection distance value of the radar terminal machine under the performance requirements of the current task.
  • the method When executed on the data processing equipment, it is also suitable for carrying out the program whose initialization has the following method steps: a standard antenna connected to the signal source with a radio frequency cable is placed at the same position of the radar antenna on the turntable, and the equivalent of the radar signal according to the value of the detection distance Before the radiated power value is calculated to obtain the radar intercept factor, the method also includes: using a power meter to measure the received radar antenna signal power value through the auxiliary antenna, and using the power meter to measure the signal power of the received signal source connected to the standard antenna through the auxiliary antenna value; calculate the radar antenna signal power value, the signal source connection standard antenna signal power value, the port power of the standard antenna, and the gain of the standard antenna at the central frequency position of the radar signal to obtain the equivalent radiation power value of the radar signal.
  • calculating the radar intercept factor according to the detection distance value and the equivalent radiation power value of the radar signal includes: combining the equivalent radiation power value of the radar signal with the radar Calculate the radar interception distance value based on the signal center frequency, radar signal bandwidth, interception receiver sensitivity, and interception receiver detection bandwidth; calculate the radar interception factor under the current mission performance requirements based on the detection distance value and radar interception distance value.
  • the method When executed on a data processing device, it is also suitable for executing a program that is initialized with the following method steps: combining the radar signal equivalent radiated power value with the radar signal center frequency, radar signal bandwidth, intercept receiver sensitivity, and intercept receiver detection bandwidth After calculating the intercepted distance of the radar, the method further includes: if the distance of the radar target is the first preset distance, calculating the ratio of the detection distance value to the intercepted distance value of the radar, if the ratio is less than the preset threshold, the radar meets the requirements of the radar target.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
  • a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
  • processors CPUs
  • input/output interfaces network interfaces
  • memory volatile and non-volatile memory
  • Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and/or nonvolatile memory such as read only memory (ROM) or flash RAM.
  • RAM random access memory
  • ROM read only memory
  • flash RAM flash random access memory
  • Computer-readable media including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information.
  • Information may be computer readable instructions, data structures, modules of a program, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
  • computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.
  • the embodiments of the present application may be provided as methods, systems or computer program products. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.

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Abstract

一种雷达截获因子的测试方法、装置、存储介质及处理器。该方法包括：在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备（S101），其中，目标设备至少包括雷达目标模拟器以及雷达天线；雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值（S102）；雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值（S103）；根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子（S104）。该方法解决了相关技术中暂无雷达截获因子测试方法的问题。

Description

雷达截获因子的测试方法、装置、存储介质及处理器 技术领域
本申请涉及雷达探测技术领域，具体而言，涉及一种雷达截获因子的测试方法、装置、存储介质及处理器。
背景技术
低截获概率(Low Probability of Intercept，LPI)雷达是一种利用特殊发射波形来防止非合作截获接收机截获和检测其发射信号的雷达。广义上讲，可以认为雷达有三个层次的低截获概率：第一个层次是“抗截获”，雷达能够有效地完成自己的任务，同时雷达信号不会被无源电子侦察设备截获。为了定量地描述雷达在任务性能下的LPI性能，相关技术中引入了截获因子的定义：截获因子，等于非合作方侦察接收机截获雷达的最大作用距离与雷达对侦察接收机的最大作用距离的比值。若满足截获因子<1，非合作方侦察接收机发现雷达的最大作用距离小于雷达发现目标的最大作用距离，此时雷达就能够先发现非合作方雷达侦察接收机，而对方却无法感知雷达的存在，己方雷达处于优势。若截获因子＞1，非合作方侦察接收机发现雷达的最大作用距离大于雷达发现目标的最大作用距离，此时雷达尚未完成使命就被非合作方雷达侦察接收机发现，己方雷达处于劣势。若截获因子＝1，非合作方侦察接收机发现雷达的最大作用距离等于雷达发现目标的最大作用距离，己方雷达与非合作方雷达侦察接收机处于均势。由此可知，截获因子越小，雷达优势越大，反侦察能力也就越强。雷达LPI的第二个层次是“抗定位、跟踪”，此时雷达信号虽然被截获，但是敌方不能对雷达信号实现有效地定位、跟踪。随着无源探测装备的发展，航空平台的测向定位威胁主要来自于地/海面和空中，因此无源定位、跟踪的方式有地/海-空和空-空无源定位，地/海-空通常采用多站协同定位的方式，空-空可以采用单机、多机无源定位方式，根据当前战场态势，进行雷达辐射信号的控制，可以破坏其定位跟踪条件，从而达到抗定位、跟踪的目的。第三个层次是“抗识别”，雷达信号被无源探测设备截获、定位、跟踪的情况下，无源探测设备无法通过截获的信号对我进行敌我、类型、型号、个体等属性参数的识别，通过改变雷达信号的特征，增加雷达信号特征的不确定性，可以有效降低敌方无源探测的分选识别能力。
然而，对雷达的截获因子测试研究非常必要。由于专业的特殊性，雷达信号截获因子的测试方法在国外鲜有报道。国内对雷达截获因子的研究也主要集中在将其作为雷达低截获概率性能的一个衡量指标进行仿真验证，而对雷达截获因子的测试验证方法研究几乎没有。
针对相关技术中暂无雷达截获因子测试方法的问题，目前尚未提出有效的解决方案。
发明内容
本申请的主要目的在于提供一种雷达截获因子的测试方法、装置、存储介质及处理器，以解决相关技术中暂无雷达截获因子测试方法的问题。
为了实现上述目的，根据本申请的一个方面，提供了一种雷达截获因子的测试方法，雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接雷达显控计算机和功率计，辅助天线通过射频电缆连接功率计，包括：在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值；雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值；根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子。
进一步地，在将雷达端机发出的雷达激励信号发送至目标设备之前，该方法还包括：对雷达端机的测试环境进行构建，得到构建后的测试环境，其中，测试环境至少包括雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线；基于雷达显控计算机对雷达端机进行工作模式以及工作参数的设置，其中，工作参数至少包括雷达信号中心频率以及雷达信号带宽；对雷达目标模拟器设置目标参数，其中，目标参数至少包括雷达目标的距离、雷达目标的速度以及雷达目标的雷达反射截面积，其中，雷达目标的距离至少包括第一预设距离、第二预设距离以及第三预设距离；对功率计设置功率测量参数，其中，功率测量参数至少包括测量功率的频段、测量功率的模式。
进一步地，对雷达端机的测试环境进行构建，得到构建后的测试环境包括：对雷达天线以及辅助天线的位置进行调节；对雷达端机、雷达目标模拟器、雷达天线以及功率计进行加电预热；基于雷达显控计算机将雷达天线的状态设置为发射状态，并设置雷达发射波的波束指向为雷达天线阵面的法线方向。
进一步地，将雷达端机发出的雷达激励信号发送至目标设备包括：将雷达端机发出的雷达激励信号基于功分器至少进行包含第一条以及第二条路径的雷达激励信号的分配；将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器；将经过第二条路径分配后的雷达激励信号发送至雷达天线。
进一步地，根据雷达回波信号得到雷达端机的探测距离值包括：根据雷达回波信号确定雷达目标的距离；雷达端机根据雷达目标的距离确定雷达功率控制策略；根据雷达功率控制策略调整雷达端机发射功率的大小，并通过雷达端机完成雷达目标距离和雷达目标速度的测量，当雷达端机对雷达目标距离和雷达目标速度的测量精度满足要求时，将雷达端机对雷达目标的距离的测量值作为雷达端机在当前任务性能要求下的探测距离值。
进一步地，在转台上雷达天线同一位置处放置用射频电缆连接信号源的标准天线，在根据探测距离值和雷达信号等效辐射功率值，计算得到雷达截获因子之前，该方法还包括：采用功率计通过辅助天线测量接收到的雷达天线信号功率值，采用功率计通过辅助天线测量接收到的信号源连接标准天线的信号功率值；将雷达天线信号功率值、信号源连接标准天线信号功率值、标准天线的端口功率以及标准天线在雷达信号中心频率位置的增益进行计算，得到雷达信号等效辐射功率值。
进一步地，根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子包括：将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值；根据探测距离值和雷达被截获距离值计算在当前任务性能要求下的雷达截获因子。
进一步地，在将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离之后，该方法还包括：若雷达目标的距离为第一预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第一预设距离时雷达的低截获概率要求；若雷达目标的距离为第二预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第二预设距离时雷达的低截获概率要求；若雷达目标的距离为第三预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第三预设距离时雷达的低截获概率要求，其中，第一预设距离大于第二预设距离、第一预设距离大于第三预设距离、第二预设距离大于第三预设距离。
为了实现上述目的，根据本申请的另一方面，提供了一种雷达截获因子的测试装置，雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接雷达显控计算机和功率计，辅助天线通过射频电缆连接功率计，包括：第一发送单元，用于在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；第一接收单元，用于所述雷达目标模拟器接收所述雷达激励信号而返回雷达回波信号至所述雷达端机，所述雷达端机根据所述 雷达回波信号得到所述雷达端机的探测距离值；第二接收单元，用于所述雷达天线接收所述雷达激励信号，通过空间辐射出去，采用所述功率计通过所述辅助天线测量所述雷达信号等效辐射功率值；第一计算单元，用于根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子。
进一步地，该装置还包括：第一构建单元，用于在将雷达端机发出的雷达激励信号发送至目标设备之前，对雷达端机的测试环境进行构建，得到构建后的测试环境，其中，测试环境至少包括雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线；第一设置单元，用于基于雷达显控计算机对雷达端机进行工作模式以及工作参数的设置，其中，工作参数至少包括雷达信号中心频率以及雷达信号带宽；第二设置单元，用于对雷达目标模拟器设置目标参数，其中，目标参数至少包括雷达目标的距离、雷达目标的速度以及雷达目标的雷达反射截面积，其中，雷达目标的距离至少包括第一预设距离、第二预设距离以及第三预设距离；第三设置单元，用于对功率计设置功率测量参数，其中，功率测量参数至少包括测量功率的频段、测量功率的模式。
进一步地，第一构建单元包括：第一调节模块，用于对雷达天线以及辅助天线的位置进行调节；第一处理模块，用于对雷达端机、雷达目标模拟器、雷达天线以及功率计进行加电预热；第一设置模块，用于基于雷达显控计算机将雷达天线的状态设置为发射状态，并设置雷达发射波的波束指向为雷达天线阵面的法线方向。
进一步地，第一发送单元包括：第一分配模块，用于将雷达端机发出的雷达激励信号基于功分器至少进行包含第一条以及第二条路径的雷达激励信号的分配；第一发送模块，用于将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器；第二发送模块，用于将经过第二条路径分配后的雷达激励信号发送至雷达天线。
进一步地，第一接收单元包括：第一确定模块，用于根据雷达回波信号确定雷达目标的距离；雷达端机根据雷达目标的距离确定雷达功率控制策略；第一调整模块，用于根据雷达功率控制策略调整雷达端机发射功率的大小，并通过雷达端机完成雷达目标距离和雷达目标速度的测量，当雷达端机对雷达目标距离和雷达目标速度的测量精度满足要求时，将雷达端机对雷达目标的距离的测量值作为雷达端机在当前任务性能要求下的探测距离值。
进一步地，该装置还包括：第三接收单元，用于在转台上雷达天线同一位置处放置用射频电缆连接信号源的标准天线，在根据探测距离值和雷达信号等效辐射功率值，计算得到雷达截获因子之前，采用功率计通过辅助天线测量接收到的雷达天线信号功率值，采用功率计通过辅助天线测量接收到的信号源连接标准天线的信号功率值；第二计算单元，用于将测量的雷达天线信号功率值、测量的信号源连接标准天线的信号 功率值、标准天线的端口功率以及标准天线在雷达信号中心频率位置的增益进行计算，得到雷达信号等效辐射功率值。
进一步地，第一计算单元包括：第一计算模块，用于将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值；第二计算模块，用于根据探测距离值和雷达被截获距离值计算在当前任务性能要求下的雷达截获因子。
进一步地，该装置还包括：第三计算单元，用于在将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离之后，若雷达目标的距离为第一预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第一预设距离时雷达的低截获概率要求；第四计算单元，用于若雷达目标的距离为第二预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第二预设距离时雷达的低截获概率要求；第五计算单元，用于若雷达目标的距离为第三预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第三预设距离时雷达的低截获概率要求，其中，第一预设距离大于第二预设距离、第一预设距离大于第三预设距离、第二预设距离大于第三预设距离。
通过本申请，采用以下步骤：雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接雷达显控计算机和功率计，辅助天线通过射频电缆连接功率计，通过在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值；雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值；根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子，解决了相关技术中暂无雷达截获因子测试方法的问题。通过微波暗室中雷达端机对雷达目标模拟器产生雷达回波信号的接收，得到雷达端机的探测距离值，并结合功率计测量的雷达信号等效辐射功率值，得到雷达截获因子，进而实现了对雷达截获因子的测试，可以准确得到雷达截获因子的效果。
附图说明
构成本申请的一部分的附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是根据本申请实施例提供的雷达截获因子的测试方法的流程图；
图2是根据本申请实施例提供的雷达截获因子的测试方法系统的测试原理框图；
图3是根据本申请实施例提供的使用比较法测量雷达在任务性能下等效辐射功率的流程图；
图4是根据本申请实施例提供的雷达截获因子的测试装置的示意图。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
根据本申请的实施例，提供了一种雷达截获因子的测试方法。
图1是根据本申请实施例的雷达截获因子的测试方法的流程图。如图1所示，该方法包括以下步骤：
步骤S101，在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线。
雷达端机将雷达激励信号发送至目标设备，需要先将激励信号进行路径的分配，然后将分配后的雷达激励信号发送至目标设备。
可选地，在本申请实施例提供的雷达截获因子的测试方法中，将雷达端机发出的雷达激励信号发送至目标设备包括：将雷达端机发出的雷达激励信号基于功分器至少 进行包含第一条以及第二条路径的雷达激励信号的分配；将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器；将经过第二条路径分配后的雷达激励信号发送至雷达天线。
具体的，基于功分器将雷达激励信号至少分配为两条路径，雷达端机将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器，雷达端机将经过第二条路径分配后的雷达激励信号发送至雷达天线，并产生相应的雷达信号增益方便后续雷达信号功率的测量计算。
在雷达端机将雷达激励信号发送至目标设备之前，需要对雷达端机设备进行雷达测试信号环境的搭建，以满足本申请雷达截获因子的测试条件。
可选地，在本申请实施例提供的雷达截获因子的测试方法中，在将雷达端机发出的雷达激励信号发送至目标设备之前，方法还包括：对雷达端机的测试环境进行构建，得到构建后的测试环境，其中，测试环境至少包括雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线；基于雷达显控计算机对雷达端机进行工作模式以及工作参数的设置，其中，工作参数至少包括雷达信号中心频率以及雷达信号带宽；对雷达目标模拟器设置目标参数，其中，目标参数至少包括雷达目标的距离、雷达目标的速度以及雷达目标的雷达反射截面积，其中，雷达目标的距离至少包括第一预设距离、第二预设距离以及第三预设距离；对功率计设置功率测量参数，其中，功率测量参数至少包括测量功率的频段、测量功率的模式。
其中，对雷达端机的测试环境的构建是本申请雷达截获因子测试的重要环节之一，可选地，在本申请实施例提供的雷达截获因子的测试方法中，对雷达端机的测试环境进行构建，得到构建后的测试环境包括：对雷达天线以及辅助天线的位置进行调节；对雷达端机、雷达目标模拟器、雷达天线以及功率计进行加电预热；基于雷达显控计算机将雷达天线的状态设置为发射状态，并设置雷达发射波的波束指向为雷达天线阵面的法线方向。
具体的，如图2所示，在微波暗室中，通过网线连接雷达显控计算机的雷达端机，通过射频电缆连接雷达端机和功分器的雷达目标模拟器，通过射频电缆连接功分器的雷达天线，通过网线连接雷达显控计算机和功率计的数据分析计算机，通过射频电缆连接功率计的辅助天线，当雷达端机在发出雷达激励信号之前，需要构建雷达端机的测试环境，雷达端机的测试环境至少由雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线组成，雷达显控计算机对雷达端机进行工作模式以及工作参数的设置，对雷达目标模拟器进行目标参数设置，以及功率计设置功率测量参数，通过对雷达端机的测试环境中各项设备及其参数的设定，使得满足本申请雷达截获因子的测试条件，上述对微波暗室测试环境的搭建以及对雷达端机、雷达目标模拟 器和功率计进行参数配置，使得测试信号可以遍历雷达不同的工作模式及工作参数，得到雷达系统全面的测试数据，因此，本申请的测试方法操作更为方便，可实施性更强。
步骤S102，雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值。
可选地，在本申请实施例提供的雷达截获因子的测试方法中，根据雷达回波信号得到雷达端机的探测距离值包括：根据雷达回波信号确定雷达目标的距离；雷达端机根据雷达目标的距离确定雷达功率控制策略；根据雷达功率控制策略调整雷达端机发射功率的大小，并通过雷达端机完成雷达目标距离和雷达目标速度的测量，当雷达端机对雷达目标距离和雷达目标速度的测量精度满足要求时，将雷达端机对雷达目标的距离的测量值作为雷达端机在当前任务性能要求下的探测距离值。
其中，雷达功率控制策略具体步骤为：首先，根据上述步骤设定的雷达目标的距离、雷达目标的雷达反射截面积，雷达信号中心频率，计算雷达在当前探测任务性能要求下所需雷达的发射等效辐射功率，计算雷达发射等效辐射功率方程为：
Figure PCTCN2021097431-appb-000001
其中：R D为雷达目标的距离值；ERP为雷达等效辐射功率；f为雷达信号中心频率；σ为雷达目标的雷达反射截面积；P r为雷达接收功率。
雷达探测所需最小等效辐射功率ERP min为：
ERP min＝S RD+40·lg R D+20·lg f+103.43-10·lgσ
其中：S RD为雷达接收机灵敏度。
然后计算发射功率调整量ΔERP。
Figure PCTCN2021097431-appb-000002
其中，ERP max为雷达最大等效辐射功率，
Figure PCTCN2021097431-appb-000003
表示下取整，ΔP为功率控制步进。
具体的，雷达端机将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器，雷达目标模拟器做出响应产生雷达回波信号，雷达回波信号经射频电缆输入至雷达端机，雷达端机根据接收到的雷达回波信号解算雷达目标的距离与速度，当雷达解算的雷达目标距离和目标速度满足精度要求时，根据雷达目标的距离并基于雷达功率控制策略实时调节雷达端机辐射功率大小，此时雷达解算的雷达目标的距离即为雷达 当前任务性能下的探测距离；当雷达解算的雷达目标距离和目标速度不满足精度要求时雷达端机以最大功率辐射。
步骤S103，雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值。
雷达端机将经过第二条路径分配后的雷达激励信号发送至雷达天线，通过空间辐射出去，采用功率计通过辅助天线测量雷达天线信号功率值，当雷达对目标稳定跟踪后，关闭雷达端机以及雷达目标模拟器，并对雷达天线进行断电处理，将雷达天线挪移出控制雷达天线的转台，选取如图2所示的信号源，设定信号源发射信号类型与雷达信号一致，其频率与雷达信号中心频率相同，该信号源通过射频电缆连接标准天线。
可选地，在本申请实施例提供的雷达截获因子的测试方法中，在转台上雷达天线同一位置处放置用射频电缆连接信号源的标准天线，在根据探测距离值和雷达信号等效辐射功率值，计算得到雷达截获因子之前，该方法还包括：采用功率计通过辅助天线测量接收到的雷达天线信号功率值，采用功率计通过辅助天线测量接收到的信号源连接标准天线的信号功率值；将测量的雷达天线信号功率值、测量的信号源连接标准天线的信号功率值、标准天线的端口功率以及标准天线在雷达信号中心频率位置的增益进行计算，得到雷达信号等效辐射功率值。
具体的，使用比较法测量雷达在满足任务性能要求下的等效辐射功率时，雷达天线采用圆极化方式、标准天线采用线极化方式、辅助天线与雷达天线为同旋向圆极化方式，将标准天线分别以垂直极化和水平极化的方式设置在转台上面，通过转台控制器微调转台方位角和俯仰角，使标准天线的发射波束位于辅助天线波束的同一位置方向对准，信号源按照设定的参数辐射信号，设定信号源发射信号类型与雷达信号一致，采用功率计通过辅助天线测量信号源连接标准天线辐射的信号源信号功率值，获取接收到的信号源连接标准天线的信号功率值，然后将测量的雷达天线信号功率值、测量的信号源连接标准天线的信号功率值、与标准天线的端口功率以及标准天线在雷达信号中心频率位置的增益进行计算，得到雷达信号等效辐射功率值，上述采用比较法能够精确得到雷达信号等效辐射功率值，使得后续的雷达截获因子的计算更为精准，进而提高了雷达截获因子的测试效率。
例如，图3是根据本申请实施例提供的使用比较法测量雷达在任务性能下等效辐射功率的流程图，如图3所示，基于上述步骤2完成雷达端机对雷达目标的距离测量以及速度测量的任务，当雷达对目标设备进行稳定跟踪后，用功率计测量接收的雷达信号功率值P 0，功率计标定标准天线端口功率P 1，信号源开机辐射，在功率计上测量接收的信号源连接标准天线信号功率值P 2；标准天线在雷达信号中心频率处的增益为 G 1，则雷达在满足任务性能要求下的雷达信号等效辐射功率值为：ERP＝P 0+P 1+G 1-P 2。其中，假设标准天线端口功率为P 1，当标准天线以垂直极化的方式设置在转台上面时，功率计通过辅助天线的接收信号功率为P 2V，当标准天线以水平极化的方式设置在转台上面时，功率计通过辅助天线的接收信号功率为P 2H，标准天线等效为圆极化方式情况下的信号源信号功率值P 2计算方式为：
Figure PCTCN2021097431-appb-000004
上式中，P 2、P 2V、P 2H单位均为dBm。
步骤S104，根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子。
上述根据雷达信号功率值结合信号源连接标准天线信号功率值计算得出雷达信号等效辐射功率值，雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值，根据雷达被截获距离值与雷达探测距离值的比值计算得出雷达截获因子。
可选地，在本申请实施例提供的雷达截获因子的测试方法中，根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子包括：将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值；根据探测距离值和雷达被截获距离值计算在当前任务性能要求下的雷达截获因子。
具体的，根据上述步骤S103计算得到的雷达信号等效辐射功率结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值，其中，雷达信号等效辐射功率值根据其雷达目标的距离的不同而变化，且计算雷达被截获距离值也会随之不同，体现了本申请实施例技术方案的雷达截获因子测试系统的全面性。
可选地，在本申请实施例提供的雷达截获因子的测试方法中，在将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离之后，该方法还包括：若雷达目标的距离为第一预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第一预设距离时雷达的低截获概率要求；若雷达目标的距离为第二预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第二预设距离时雷达的低截获概率要求；若雷达目标的距离为第三预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第三预设距离时雷达的低截获概率要求，其中，第一预设距离大于第二预设距离、第一预设距离大于第三预设距离、第二预设距离大于第三 预设距离。
例如，第一预设距离为80km、第二预设距离为40km、第三预设距离为10km。当第一预设距离为80km时，此时雷达探测距离R D1、雷达信号等效辐射功率值ERP 1，当第二预设距离为40km时，此时雷达探测距离R D2、雷达信号等效辐射功率值ERP 2，当第一预设距离为80km时，此时雷达探测距离R D3、雷达信号等效辐射功率值ERP 3，分别根据上述计算得到的雷达信号等效辐射功率值ERP 1、ERP 2以及ERP 3结合雷达信号中心频率f、雷达信号带宽B s、截获接收机灵敏度S I、截获接收机检测带宽B I计算雷达被截获距离值R I1、R I2、R I3，其中，R Ii计算公式为：
Figure PCTCN2021097431-appb-000005
获取上述雷达被截获距离值，基于数据分析计算机内的截获因子计算软件计算雷达在不同雷达目标的距离下的雷达截获因子α i＝R Ii/R Di,i＝1,2,3(其中i＝1,2,3分别对应于第一预设距离、第二预设距离以及第三预设距离情况)。若α i＜1(i＝1,2,3)，说明雷达在雷达目标的距离为第一预设距离、第二预设距离以及第三预设距离的探测任务性能要求下均具备低截获概率性能；若α i＜1(i＝2,3)，说明雷达在第二预设距离和第三预设距离的探测任务性能要求下具备低截获概率性能；若α i＜1(i＝3)，说明雷达仅在第三预设距离的探测任务性能要求下具备低截获概率性能；若α i＞1(i＝1,2,3)，说明雷达在各种距离的探测任务性能要求下不具备低截获概率性能，其中，根据探测距离值和雷达被截获距离值的比值获取的雷达截获因子预设阈值为一般为数字1。
通过上述对处于不同雷达目标的距离下的雷达截获因子的低截获概率性能的测试，节省了测试成本的同时，降低了不同雷达目标的距离的探测任务性能要求下具备低截获概率性能测试的复杂度，达到了提高了雷达截获因子测试效率的效果。
综上，本申请实施例提供的一种雷达截获因子的测试方法，雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接雷达显控计算机和功率计，辅助天线通过射频电缆连接功率计，通过在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值；雷达天线雷达激励信号，通过空间辐射出去，采 用功率计通过辅助天线测量雷达信号等效辐射功率值；根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子，解决了相关技术中暂无雷达截获因子测试方法的问题。通过微波暗室中雷达端机对雷达目标模拟器产生雷达回波信号的接收，得到雷达端机的探测距离值，并结合功率计测量的雷达信号等效辐射功率值，得到雷达截获因子，进而实现了对雷达截获因子的测试，可以准确得到雷达截获因子的效果。
需要说明的是，在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
本申请实施例还提供了一种雷达截获因子的测试装置，需要说明的是，本申请实施例的雷达截获因子的测试装置可以用于执行本申请实施例所提供的用于雷达截获因子的测试方法。以下对本申请实施例提供的雷达截获因子的测试装置进行介绍。
图4是根据本申请实施例的雷达截获因子的测试装置的示意图。如图4所示，本申请实施例提供的一种雷达截获因子的测试装置，雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接雷达显控计算机和功率计，辅助天线通过射频电缆连接功率计，包括：第一发送单元401、第一接收单元402、第二接收单元403、第一计算单元404。
具体的第一发送单元401，用于在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；
第一接收单元402，用于雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值；
第二接收单元403，用于雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值；
第一计算单元404，用于根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子。
综上，本申请实施例提供一种雷达截获因子的测试装置，雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接雷达显控计算机和功率计，辅助天线通过射频电缆连接功率计，通过第一发送单元401在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；第一接收单元402雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值；第二接收单元 403雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值；第一计算单元404根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子，解决了相关技术中暂无雷达截获因子测试方法的问题。通过微波暗室中雷达端机对雷达目标模拟器产生雷达回波信号的接收，得到雷达端机的探测距离值，并结合功率计测量的雷达信号等效辐射功率值，得到雷达截获因子，进而实现了对雷达截获因子的测试，可以准确得到雷达截获因子的效果。
可选地，在本申请实施例提供的雷达截获因子的测试装置中，该装置还包括：第一构建单元，用于在将雷达端机发出的雷达激励信号发送至目标设备之前，对雷达端机的测试环境进行构建，得到构建后的测试环境，其中，测试环境至少包括雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线；第一设置单元，用于基于雷达显控计算机对雷达端机进行工作模式以及工作参数的设置，其中，工作参数至少包括雷达信号中心频率以及雷达信号带宽；第二设置单元，用于对雷达目标模拟器设置目标参数，其中，目标参数至少包括雷达目标的距离、雷达目标的速度以及雷达目标的雷达反射截面积，其中，雷达目标的距离至少包括第一预设距离、第二预设距离以及第三预设距离；第三设置单元，用于对功率计设置功率测量参数，其中，功率测量参数至少包括测量功率的频段、测量功率的模式。
可选地，在本申请实施例提供的雷达截获因子的测试装置中，第一构建单元包括：第一调节模块，用于对雷达天线以及辅助天线的位置进行调节；第一处理模块，用于对雷达端机、雷达目标模拟器、雷达天线以及功率计进行加电预热；第一设置模块，用于基于雷达显控计算机将雷达天线的状态设置为发射状态，并设置雷达发射波的波束指向为雷达天线阵面的法线方向。
可选地，在本申请实施例提供的雷达截获因子的测试装置中，第一发送单元401包括：第一分配模块，用于将雷达端机发出的雷达激励信号基于功分器至少进行包含第一条以及第二条路径的雷达激励信号的分配；第一发送模块，用于将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器；第二发送模块，用于将经过第二条路径分配后的雷达激励信号发送至雷达天线。
可选地，在本申请实施例提供的雷达截获因子的测试装置中，第一接收单元402包括：第一确定模块，用于根据雷达回波信号确定雷达目标的距离；第二确定模块，用于雷达端机根据雷达目标的距离确定雷达功率控制策略；第一调整模块，用于根据雷达功率控制策略调整雷达端机发射功率的大小，并通过雷达端机完成雷达目标距离和雷达目标速度的测量，当雷达端机对雷达目标距离和雷达目标速度的测量精度满足要求时，将雷达端机对雷达目标的距离的测量值作为雷达端机在当前任务性能要求下的探测距离值。
可选地，在本申请实施例提供的雷达截获因子的测试装置中，该装置还包括：第三接收单元，用于在转台上雷达天线同一位置处放置用射频电缆连接信号源的标准天线，在根据探测距离值和雷达信号等效辐射功率值，计算得到雷达截获因子之前，采用功率计通过辅助天线测量接收到的雷达天线信号功率值，采用功率计通过辅助天线测量接收到的信号源连接标准天线的信号功率值；第二计算单元，用于将雷达天线信号功率值、信号源连接标准天线的信号功率值、标准天线的端口功率以及标准天线在雷达信号中心频率位置的增益进行计算，得到雷达信号等效辐射功率值。
可选地，在本申请实施例提供的雷达截获因子的测试装置中，第一计算单元404包括：第一计算模块，用于将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值；第二计算模块，用于根据探测距离值和雷达被截获距离值计算在当前任务性能要求下的雷达截获因子。
可选地，在本申请实施例提供的雷达截获因子的测试装置中，该装置还包括：第三计算单元，用于在将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离之后，若雷达目标的距离为第一预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第一预设距离时雷达的低截获概率要求；第四计算单元，用于若雷达目标的距离为第二预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第二预设距离时雷达的低截获概率要求；第五计算单元，用于若雷达目标的距离为第三预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第三预设距离时雷达的低截获概率要求，其中，第一预设距离大于第二预设距离、第一预设距离大于第三预设距离、第二预设距离大于第三预设距离。
雷达截获因子的测试装置包括处理器和存储器，上述的第一发送单元401、第一接收单元402、第二接收单元403、第一计算单元404等均作为程序单元存储在存储器中，由处理器执行存储在存储器中的上述程序单元来实现相应的功能。
处理器中包含内核，由内核去存储器中调取相应的程序单元。内核可以设置一个或以上，通过调整内核参数来进行雷达截获因子的测试。
存储器可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)，存储器包括至少一个存储芯片。
本发明实施例提供了一种存储介质，其上存储有程序，该程序被处理器执行时实 现雷达截获因子的测试方法。
本发明实施例提供了一种处理器，处理器用于运行程序，其中，程序运行时执行雷达截获因子的测试方法。
本发明实施例提供了一种设备，设备包括处理器、存储器及存储在存储器上并可在处理器上运行的程序，处理器执行程序时实现以下步骤：雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接雷达显控计算机和功率计，辅助天线通过射频电缆连接功率计，包括：在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值；雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值；根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子。
处理器执行程序时还实现以下步骤：在将雷达端机发出的雷达激励信号发送至目标设备之前，该方法还包括：对雷达端机的测试环境进行构建，得到构建后的测试环境，其中，测试环境至少包括雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线；基于雷达显控计算机对雷达端机进行工作模式以及工作参数的设置，其中，工作参数至少包括雷达信号中心频率以及雷达信号带宽；对雷达目标模拟器设置目标参数，其中，目标参数至少包括雷达目标的距离、雷达目标的速度以及雷达目标的雷达反射截面积，其中，雷达目标的距离至少包括第一预设距离、第二预设距离以及第三预设距离；对功率计设置功率测量参数，其中，功率测量参数至少包括测量功率的频段、测量功率的模式。
处理器执行程序时还实现以下步骤：对雷达端机的测试环境进行构建，得到构建后的测试环境包括：对雷达天线以及辅助天线的位置进行调节；对雷达端机、雷达目标模拟器、雷达天线以及功率计进行加电预热；基于雷达显控计算机将雷达天线的状态设置为发射状态，并设置雷达发射波的波束指向为雷达天线阵面的法线方向。
处理器执行程序时还实现以下步骤：将雷达端机发出的雷达激励信号发送至目标设备包括：将雷达端机发出的雷达激励信号基于功分器至少进行包含第一条以及第二条路径的雷达激励信号的分配；将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器；将经过第二条路径分配后的雷达激励信号发送至雷达天线。
处理器执行程序时还实现以下步骤：根据雷达回波信号得到雷达端机的探测距离值包括：根据雷达回波信号确定雷达目标的距离；雷达端机根据雷达目标的距离确定 雷达功率控制策略；根据雷达功率控制策略调整雷达端机发射功率的大小，并通过雷达端机完成雷达目标距离和雷达目标速度的测量，当雷达端机对雷达目标距离和雷达目标速度的测量精度满足要求时，将雷达端机对雷达目标的距离的测量值作为雷达端机在当前任务性能要求下的探测距离值。
处理器执行程序时还实现以下步骤：在转台上雷达天线同一位置处放置用射频电缆连接信号源的标准天线，在根据探测距离值和雷达信号等效辐射功率值，计算得到雷达截获因子之前，该方法还包括：采用功率计通过辅助天线测量接收到的雷达天线信号功率值，采用功率计通过辅助天线测量接收到的信号源连接标准天线的信号功率值；将雷达天线信号功率值、信号源连接标准天线信号功率值、标准天线的端口功率以及标准天线在雷达信号中心频率位置的增益进行计算，得到雷达信号等效辐射功率值。
处理器执行程序时还实现以下步骤：根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子包括：将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值；根据探测距离值和雷达被截获距离值计算在当前任务性能要求下的雷达截获因子。
处理器执行程序时还实现以下步骤：在将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离之后，该方法还包括：若雷达目标的距离为第一预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第一预设距离时雷达的低截获概率要求；若雷达目标的距离为第二预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第二预设距离时雷达的低截获概率要求；若雷达目标的距离为第三预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第三预设距离时雷达的低截获概率要求，其中，第一预设距离大于第二预设距离、第一预设距离大于第三预设距离、第二预设距离大于第三预设距离。本文中的设备可以是服务器、PC、PAD、手机等。
本申请还提供了一种计算机程序产品，当在数据处理设备上执行时，适于执行初始化有如下方法步骤的程序：在微波暗室中，将雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；雷达目标模拟器接收雷达激励信号而返回雷达回波信号至雷达端机，雷达端机根据雷达回波信号得到雷达端机的探测距离值；雷达天线接收雷达激励信号，通过空间辐射出去，采用功率计通过辅助天线测量雷达信号等效辐射功率值；根据探测距离值和雷达信号等效辐射功率值计算得到雷达截获因子。
当在数据处理设备上执行时，还适于执行初始化有如下方法步骤的程序：在将雷达端机发出的雷达激励信号发送至目标设备之前，该方法还包括：对雷达端机的测试环境进行构建，得到构建后的测试环境，其中，测试环境至少包括雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线；基于雷达显控计算机对雷达端机进行工作模式以及工作参数的设置，其中，工作参数至少包括雷达信号中心频率以及雷达信号带宽；对雷达目标模拟器设置目标参数，其中，目标参数至少包括雷达目标的距离、雷达目标的速度以及雷达目标的雷达反射截面积，其中，雷达目标的距离至少包括第一预设距离、第二预设距离以及第三预设距离；对功率计设置功率测量参数，其中，功率测量参数至少包括测量功率的频段、测量功率的模式。
当在数据处理设备上执行时，还适于执行初始化有如下方法步骤的程序：对雷达端机的测试环境进行构建，得到构建后的测试环境包括：对雷达天线以及辅助天线的位置进行调节；对雷达端机、雷达目标模拟器、雷达天线以及功率计进行加电预热；基于雷达显控计算机将雷达天线的状态设置为发射状态，并设置雷达发射波的波束指向为雷达天线阵面的法线方向。
当在数据处理设备上执行时，还适于执行初始化有如下方法步骤的程序：将雷达端机发出的雷达激励信号发送至目标设备包括：将雷达端机发出的雷达激励信号基于功分器至少进行包含第一条以及第二条路径的雷达激励信号的分配；将经过第一条路径分配后的雷达激励信号发送至雷达目标模拟器；将经过第二条路径分配后的雷达激励信号发送至雷达天线。
当在数据处理设备上执行时，还适于执行初始化有如下方法步骤的程序：根据雷达回波信号得到雷达端机的探测距离值包括：根据雷达回波信号确定雷达目标的距离；雷达端机根据雷达目标的距离确定雷达功率控制策略；根据雷达功率控制策略调整雷达端机发射功率的大小，并通过雷达端机完成雷达目标距离和雷达目标速度的测量，当雷达端机对雷达目标距离和雷达目标速度的测量精度满足要求时，将雷达端机对雷达目标的距离的测量值作为雷达端机在当前任务性能要求下的探测距离值。
当在数据处理设备上执行时，还适于执行初始化有如下方法步骤的程序：在转台上雷达天线同一位置处放置用射频电缆连接信号源的标准天线，在根据探测距离值和雷达信号等效辐射功率值，计算得到雷达截获因子之前，该方法还包括：采用功率计通过辅助天线测量接收到的雷达天线信号功率值，采用功率计通过辅助天线测量接收到的信号源连接标准天线的信号功率值；将雷达天线信号功率值、信号源连接标准天线信号功率值、标准天线的端口功率以及标准天线在雷达信号中心频率位置的增益进行计算，得到雷达信号等效辐射功率值。
当在数据处理设备上执行时，还适于执行初始化有如下方法步骤的程序：根据探 测距离值和雷达信号等效辐射功率值计算得到雷达截获因子包括：将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值；根据探测距离值和雷达被截获距离值计算在当前任务性能要求下的雷达截获因子。
当在数据处理设备上执行时，还适于执行初始化有如下方法步骤的程序：在将雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离之后，该方法还包括：若雷达目标的距离为第一预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第一预设距离时雷达的低截获概率要求；若雷达目标的距离为第二预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第二预设距离时雷达的低截获概率要求；若雷达目标的距离为第三预设距离，计算探测距离值与雷达被截获距离值的比值，若比值小于预设阈值，则雷达满足雷达目标的距离为第三预设距离时雷达的低截获概率要求，其中，第一预设距离大于第二预设距离、第一预设距离大于第三预设距离、第二预设距离大于第三预设距离。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算 机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
在一个典型的配置中，计算设备包括一个或多个处理器(CPU)、输入/输出接口、网络接口和内存。
存储器可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)。存储器是计算机可读介质的示例。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括要素的过程、方法、商品或者设备中还存在另外的相同要素。
本领域技术人员应明白，本申请的实施例可提供为方法、系统或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
以上仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (11)

  1. 一种雷达截获因子的测试方法，雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接所述雷达显控计算机和功率计，辅助天线通过射频电缆连接所述功率计，其特征在于，包括：
    在微波暗室中，将所述雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；
    所述雷达目标模拟器接收所述雷达激励信号而返回雷达回波信号至所述雷达端机，所述雷达端机根据所述雷达回波信号得到所述雷达端机的探测距离值；
    所述雷达天线接收所述雷达激励信号，通过空间辐射出去，采用所述功率计通过所述辅助天线测量雷达信号等效辐射功率值；
    根据所述探测距离值和所述雷达信号等效辐射功率值计算得到雷达截获因子。
  2. 根据权利要求1所述的方法，其特征在于，在将所述雷达端机发出的所述雷达激励信号发送至所述目标设备之前，所述方法还包括：
    对所述雷达端机的测试环境进行构建，得到构建后的测试环境，其中，所述测试环境至少包括雷达端机、雷达显控计算机、雷达目标模拟器、功率计、雷达天线以及辅助天线；
    基于所述雷达显控计算机对所述雷达端机进行工作模式以及工作参数的设置，其中，所述工作参数至少包括雷达信号中心频率以及雷达信号带宽；
    对所述雷达目标模拟器设置目标参数，其中，所述目标参数至少包括所述雷达目标的距离、雷达目标的速度以及雷达目标的雷达反射截面积，其中，所述雷达目标的距离至少包括第一预设距离、第二预设距离以及第三预设距离；
    对所述功率计设置功率测量参数，其中，所述功率测量参数至少包括测量功率的频段、测量功率的模式。
  3. 根据权利要求2所述的方法，其特征在于，对所述雷达端机的测试环境进行构建，得到构建后的测试环境包括：
    对所述雷达天线以及辅助天线的位置进行调节；
    对所述雷达端机、所述雷达目标模拟器、所述雷达天线以及所述功率计进行加电预热；
    基于所述雷达显控计算机将所述雷达天线的状态设置为发射状态，并设置雷达发射波的波束指向为所述雷达天线阵面的法线方向。
  4. 根据权利要求1所述的方法，其特征在于，将所述雷达端机发出的所述雷达激励信号发送至所述目标设备包括：
    将所述雷达端机发出的所述雷达激励信号基于功分器至少进行包含第一条以及第二条路径的雷达激励信号的分配；
    将经过第一条路径分配后的雷达激励信号发送至所述雷达目标模拟器；
    将经过第二条路径分配后的雷达激励信号发送至所述雷达天线。
  5. 根据权利要求1所述的方法，其特征在于，根据所述雷达回波信号得到所述雷达端机的探测距离值包括：
    根据所述雷达回波信号确定所述雷达目标的距离；
    所述雷达端机根据所述雷达目标的距离确定雷达功率控制策略；
    根据所述雷达功率控制策略调整所述雷达端机发射功率的大小，并通过所述雷达端机完成雷达目标距离和雷达目标速度的测量，当所述雷达端机对所述雷达目标距离和所述雷达目标速度的测量精度满足要求时，将所述雷达端机对所述雷达目标的距离的测量值作为所述雷达端机在当前任务性能要求下的探测距离值。
  6. 根据权利要求1所述的方法，其特征在于，在转台上所述雷达天线同一位置处放置用射频电缆连接信号源的标准天线，在根据所述探测距离值和所述雷达信号等效辐射功率值，计算得到雷达截获因子之前，所述方法还包括：
    采用所述功率计通过所述辅助天线测量接收到的所述雷达天线信号功率值；
    采用所述功率计通过所述辅助天线测量接收到的所述信号源连接所述标准天线的信号功率值；
    将所述雷达天线信号功率值、所述信号源连接所述标准天线信号功率值、所述标准天线的端口功率以及所述标准天线在所述雷达信号中心频率位置的增益进行计算，得到所述雷达信号等效辐射功率值。
  7. 根据权利要求6所述的方法，其特征在于，根据所述探测距离值和所述雷达信号等效辐射功率值计算得到雷达截获因子包括：
    将所述雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离值；
    根据所述探测距离值和所述雷达被截获距离值计算在当前任务性能要求下的雷达截获因子。
  8. 根据权利要求7所述的方法，其特征在于，在将所述雷达信号等效辐射功率值结合雷达信号中心频率、雷达信号带宽、截获接收机灵敏度、截获接收机检测带宽计算雷达被截获距离之后，所述方法还包括：
    若所述雷达目标的距离为第一预设距离，计算所述探测距离值与所述雷达被截获距离值的比值，若所述比值小于预设阈值，则所述雷达满足雷达目标的距离为第一预设距离时所述雷达的低截获概率要求；
    若所述雷达目标的距离为第二预设距离，计算所述探测距离值与所述雷达被截获距离值的比值，若所述比值小于预设阈值，则所述雷达满足雷达目标的距离为第二预设距离时所述雷达的低截获概率要求；
    若所述雷达目标的距离为第三预设距离，计算所述探测距离值与所述雷达被截获距离值的比值，若所述比值小于预设阈值，则所述雷达满足雷达目标的距离为第三预设距离时所述雷达的低截获概率要求，其中，所述第一预设距离大于所述第二预设距离、所述第一预设距离大于所述第三预设距离、所述第二预设距离大于所述第三预设距离。
  9. 一种雷达截获因子的测试装置，雷达端机通过网线连接雷达显控计算机，雷达目标模拟器通过射频电缆连接雷达端机和功分器，雷达天线通过射频电缆连接功分器，数据分析计算机通过网线连接所述雷达显控计算机和功率计，辅助天线通过射频电缆连接所述功率计，其特征在于，包括：
    第一发送单元，用于在微波暗室中，将所述雷达端机发出的雷达激励信号发送至目标设备，其中，目标设备至少包括雷达目标模拟器以及雷达天线；
    第一接收单元，用于所述雷达目标模拟器接收所述雷达激励信号而返回雷达回波信号至所述雷达端机，所述雷达端机根据所述雷达回波信号得到所述雷达端机的探测距离值；
    第二接收单元，用于所述雷达天线接收所述雷达激励信号，通过空间辐射出去，采用所述功率计通过所述辅助天线测量雷达信号等效辐射功率值；
    第一计算单元，用于根据所述探测距离值和所述雷达信号等效辐射功率值计算得到雷达截获因子。
  10. 一种处理器，其特征在于，所述处理器用于运行程序，其中，所述程序运行时执行权利要求1至8中任意一项所述的方法。
  11. 一种存储介质，其特征在于，所述存储介质包括存储的程序，其中，所述程序执行权利要求1至8中任意一项所述的方法。
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