Shift control method and system for active and passive radar detection device simulation

Abstract

The present invention provides a handover control method and system for simulating an active and passive radar detection device, comprising the following steps: a detection step for detecting target information and changing the operating state based on the target information; a parsing step for collecting the operating state information and parsing it to obtain flag information and control instructions; and a response step for responding to the flag information and control instructions. The present invention's handover control method for simulating an X / W active and passive radar detection device achieves stable control of the transition of the target's field of view center from the X-band to the W-band, enhancing the wide-band, high-precision simulation capabilities of the hardware-in-the-loop simulation system.

Description

Technical Field

[0001] The present invention relates to the technical field of real-time simulation control, and more particularly, to a handover control method and system for simulating active and passive radar detection devices. More particularly, the present invention preferably relates to a handover control method for simulating X / W active and passive radar detection devices. Background Art

[0002] With the rapid development of wireless communication technology, the working mode of some advanced weapon system radar detection devices has expanded from a single active or passive mode to an active-passive composite mode.

[0003] The X\W active and passive radar detection system uses an X-band passive antenna to detect and receive radiating targets that emit their own RF signals, achieving stable tracking. At the end of the weapon attack, the W-band active antenna achieves RF imaging and target discrimination, effectively improving the weapon system's anti-interference capabilities. X\W refers to a combination of X-band and W-band frequencies.

[0004] To verify the detection, tracking, and anti-interference performance of the X / W active and passive radar detection system, it is necessary to create electromagnetic environment conditions covering the X / W frequency bands. The mechanically reconfigurable RF imaging hardware-in-the-loop simulation system can accommodate two sets of target simulation devices, one for the X-band and the other for the W-band, required by the radar detection system. During the performance verification simulation test of the X / W active and passive radar detection system, target characteristic signals that meet the electromagnetic environment requirements can be switched in real time.

[0005] Chinese invention patent publication CN110701963A discloses a method for improving the handover performance of an infrared / radar composite seeker. The specific process is as follows: the composite seeker information fusion processing system sends a switching instruction, infrared tracking deviation, and radar angle deviation to the seeker servo system; when the composite seeker servo system receives the switching instruction and infrared tracking deviation, it temporarily does not enter the infrared tracking state, and converts the infrared tracking deviation into a radar tracking angle deviation and sends it to the radar tracking loop for target tracking; when the radar tracking angle deviation is within a set angle range of θ, the seeker servo system switches from the radar tracking loop to the infrared tracking loop, so that the line of sight angular velocity output transitions smoothly during the handover.

[0006] Regarding the aforementioned related technologies, the inventors believe that during an actual weapon attack, the radiation locations of the target characteristic signals in the X and W bands overlap. However, in a hardware-in-the-loop simulation system, only one of the two target simulation devices installed on the target platform can be guaranteed to be in the center of the target field of view, making it difficult to achieve stable control of the transition of the target field of view center from the X band to the W band. Summary of the Invention

[0007] In view of the defects in the prior art, the purpose of the present invention is to provide a handover control method and system for simulating active and passive radar detection devices.

[0008] According to the present invention, a shift control method for simulating an active and passive radar detection device includes the following steps:

[0009] Detection step: detect target information and change working state according to the target information;

[0010] Parsing step: collecting working status information, parsing the flag information and control instructions according to the working status information;

[0011] Response steps: response flag information and control instructions.

[0012] Preferably, the detecting step comprises the following steps:

[0013] Signal detection steps: Execute the passive band working state, detect target information in real time, make judgments based on the target information, and record the start time of the shift if the shift handover conditions are met;

[0014] Timing steps: start timing from the start time of shift handover; if the timing duration meets the shift handover duration, give the shift end mark and start the active band working state; if the timing duration does not meet the shift handover duration, give the shift handover mark and keep the working state at the starting point of the shift handover.

[0015] Preferably, in the analysis step, active band working status information or shift starting point working status information is collected in real time;

[0016] The sign information includes a shift end sign or a shift handover sign;

[0017] The control instructions include control instructions during the handover process and control instructions after the handover;

[0018] The control instructions during the handover process include the target motion platform control instructions during the handover process and the flight turntable control instructions during the handover process;

[0019] The control instructions after the shift handover include a target motion platform control instruction after the shift handover and a flight turntable control instruction after the shift handover.

[0020] Preferably, the responding step includes a shift handover mark responding step: closing the target information according to the shift handover mark;

[0021] Execute the target motion platform control instructions during the handover process and the flight turntable control instructions during the handover process, and return to the timing step.

[0022] Preferably, the response step includes an end mark response step: opening the target information according to the shift end mark;

[0023] Execute the target motion platform control instructions after the handover and the flight turntable control instructions after the handover, and the handover is completed.

[0024] According to the present invention, a shift control system for simulating active and passive radar detection devices includes active and passive radar detection devices, a simulation control system, and a response module;

[0025] The active and passive radar detection device detects target information and changes its working state according to the target information;

[0026] The simulation control system collects working status information and parses the working status information to obtain flag information and control instructions;

[0027] The response module responds to flag information and control instructions.

[0028] Preferably, the active and passive radar detection device performs a passive band working state, detects target information in real time, makes a judgment based on the target information, and records the start time of the shift handover if the shift handover conditions are met;

[0029] The active and passive radar detection device starts timing from the start time of the shift handover; if the timing duration meets the shift handover duration, a shift end mark is given and the active band working state is turned on; if the timing duration does not meet the shift handover duration, a shift handover mark is given and the working state of the shift starting point is maintained.

[0030] Preferably, the simulation control system collects active band working status information or shift starting point working status information in real time;

[0031] The sign information includes a shift end sign or a shift handover sign;

[0032] The control instructions include control instructions during the handover process and control instructions after the handover;

[0033] The control instructions during the handover process include the target motion platform control instructions during the handover process and the flight turntable control instructions during the handover process;

[0034] The control instructions after the shift handover include a target motion platform control instruction after the shift handover and a flight turntable control instruction after the shift handover.

[0035] Preferably, the response module includes a target simulation device, a flight turntable and a target motion platform;

[0036] The target simulation device closes the target information according to the shift handover mark;

[0037] The target motion platform executes the target motion platform control instructions during the handover process;

[0038] The flight turntable executes flight turntable control instructions during the handover process.

[0039] Preferably, the target simulation device turns on the target information according to the shift end mark;

[0040] The target motion platform executes the target motion platform control instruction after the shift is completed;

[0041] The flight turntable executes the flight turntable control instructions after the handover is completed.

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

[0043] 1. The present invention's X / W active and passive radar detection device simulation shift control method realizes composite simulation of the X and W frequency bands of a single system, expanding the operating frequency band of the semi-physical simulation system;

[0044] 2. The present invention's shift control method for simulating an X / W active and passive radar detection device achieves stable control of the target field of view center's transition from the X-band to the W-band, thereby improving the stability of the hardware-in-the-loop simulation system.

[0045] 3. The shift control method for simulating an X / W active and passive radar detection device of the present invention ensures the consistency of the target field of view centers of the X-band and W-band of the X / W active and passive radar detection device during the simulation process, thereby improving the high-precision simulation capability of the semi-physical simulation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0047] Figure 1 This is a working principle diagram of the simulated handover control method for the X\W active and passive radar detection device described in the present invention;

[0048] Figure 2 This is a workflow diagram of the simulated handover control method for the X\W active and passive radar detection device described in the present invention. DETAILED DESCRIPTION

[0049] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0050] The embodiment of the present invention discloses a shift control method for simulating an X\W active and passive radar detection device, such as Figure 1 and Figure 2 As shown, the X\W band handover control method of the present invention utilizes a semi-physical simulation system in combination with the tested X\W active and passive radar detection device. During the handover simulation process of the tested device, the algorithm is used to smoothly transition the target sight angle and turntable control instructions to ensure the wide-band high-precision simulation capability of the semi-physical simulation system. The implementation of the simulation handover control method for the X\W active and passive radar detection device includes a target motion platform, a target simulation device, a flight turntable, a simulation control system, and the tested X\W active and passive radar detection device. The working principle is as follows: Figure 1 Specifically, the X / W active and passive radar detection system under test was installed on a flight turntable, and the target simulator was installed on a target motion platform. The X-band refers to the radio wave band with a frequency of 8 to 12 GHz. The W-band refers to the radio wave band with a frequency of 80 to 100 GHz.

[0051] The X / W active and passive radar detection device under test detected radio frequency radiation signals in real time, providing operational status information. The simulation control system collected this information in real time, analyzed it, and issued control commands and flags (shift handover or end-of-shift flags). The flight turntable, target motion platform, and target simulator responded to these commands and flags, ensuring stable control of the X / W active and passive radar detection device during the simulated shift handover test.

[0052] The X\W active and passive radar detection device under test is installed on the flight turntable, which detects target information in real time. It makes a judgment based on the target information detected by the passive segment, and gives a handover start mark when the handover conditions are met. The X\W active and passive radar detection device under test maintains the working state at the handover starting point.

[0053] The simulation control system collects the working status information of the X\W active and passive radar detection devices in real time, and makes real-time judgments. If the active and passive handover stage is entered, the handover mark is sent to the target simulation device. At the same time, the simulation control system solves the handover control instructions in real time and sends them to the target motion platform and flight turntable.

[0054] The target simulator receives the handover signal and shuts down its radio frequency radiation. The target motion platform and the flight turntable execute the corresponding control commands. The flight turntable moves according to the flight turntable control commands, and the active and passive radar detection systems follow the flight turntable's movements. The target motion platform moves according to the target motion platform control commands, and the target simulator follows the target motion platform's movements.

[0055] The active and passive radar detection device of the test subject X\W makes a judgment based on the shift handover duration, and gives a shift handover completion work status mark when the shift handover duration is met.

[0056] After receiving the handover completion status mark, the target simulation device turns on the radio frequency radiation signal to complete the entire handover process of the X\W active and passive radar detection device simulation test.

[0057] The method includes the following steps: a detection step: detecting target information and changing the working state according to the target information. The detection step includes the following steps: a signal detection step: executing the passive band working state, detecting the target information in real time, making a judgment based on the target information, and recording the start time of the shift if the shift handover conditions are met.

[0058] Timing steps: Start timing from the shift handover start time. If the timing duration meets the shift handover duration, a shift handover end flag is displayed and the active band operation state is activated. If the timing duration does not meet the shift handover duration, a shift handover flag is displayed and the operation state at the shift handover start point is maintained. The shift handover duration is manually set. Meeting the shift handover duration means it is greater than or equal to the shift handover duration; not meeting the shift handover duration means it is less than the shift handover duration.

[0059] Parsing step: Collect working status information and parse flag information and control instructions based on the working status information. Real-time collection of active band working status information or handover starting point working status information. Flag information includes a handover end flag or a handover flag; control instructions include control instructions during the handover and control instructions after the handover. Control instructions during the handover include target motion platform control instructions during the handover and flight turntable control instructions during the handover; control instructions after the handover include target motion platform control instructions after the handover and flight turntable control instructions after the handover.

[0060] Response step: respond to flag information and control instructions. The response step includes the shift handover flag response step: closing the target information according to the shift handover flag; executing the target motion platform control instructions during the shift handover process and the flight turntable control instructions during the shift handover process, and returning to the timing step.

[0061] The response step also includes an end mark response step: opening the target information according to the handover end mark; executing the target motion platform control instruction after the handover and the flight turntable control instruction after the handover, and the handover ends.

[0062] That is, the method is implemented by the following steps:

[0063] Step 1: The X\W active-passive radar detection device performs the passive X-band working state, detects target information in real time, makes a judgment based on the target information detected by the passive X-band, satisfies the handover conditions, and records the handover start time T0.

[0064] Step 2: The X\W active and passive radar detection device starts timing from the handover start time T0. If the handover time T1 is met, a handover end mark is given, and the X\W active and passive radar detection device starts the active W band working state and enters step 6. If the handover time T1 is not met, a handover mark is given, and the X\W active and passive radar detection device maintains the working state at the handover starting point.

[0065] Step 3: The simulation control system collects the working status information of the X\W active and passive radar detection device in real time, and makes a real-time judgment. If it is a shift handover mark, the shift handover mark is sent to the target simulation device. At the same time, the simulation control system solves the shift handover control instruction in real time and sends it to the target motion platform and flight turntable. If it is a shift end mark, the shift end mark is sent to the target simulation device. At the same time, the simulation control system solves the shift handover control instruction in real time and sends it to the target motion platform and flight turntable, and then enters step 6.

[0066] Step 4: The target simulation device receives the handover mark and turns off the radio frequency radiation signal of the target simulation device.

[0067] Step 5: The target motion platform executes the target motion platform control instructions during the handover process issued by the simulation control system and the flight turntable executes the flight turntable control instructions during the handover process issued by the simulation control system, and then proceeds to step 2.

[0068] Step 6. The target simulation device receives the handover end mark and turns on the radio frequency radiation signal of the target simulation device. The target motion platform executes the target motion platform control instruction after the handover is completed issued by the simulation control system and the flight turntable executes the flight turntable control instruction after the handover is completed issued by the simulation control system, and the handover is completed.

[0069] The specific solution process of the simulation control system described in this embodiment for real-time solution of the handover control instruction is as follows:

[0070] Taking the X-band signal radiator as the benchmark, the angular error between the W-band signal radiator and the benchmark is measured in combination with the tested X\W active and passive radar detection device. The altitude error is recorded as Δε, and the azimuth error is recorded as Δβ.

[0071] The altitude and azimuth control transition adjustment values ​​ε0 and β0 are:

[0072] ε0=(t-T0)×Δεt<T1

[0073] ε0=Δεt≥T1

[0074] β0=(t-T0)×Δβt<T1

[0075] β0=Δβt≥T1

[0076] Among them, t is the duration of the simulation test, T0 is the start time of the shift handover, and T1 is the end time of the shift handover.

[0077] Target motion platform height control command ε * and azimuth control command β * They are

[0078] ε * =arcsin(sinεcosε0-cosεsinε0cos(β-β0))

[0079]

[0080] Among them, ε and β are the altitude and azimuth control instructions without adjustment calculated theoretically, and are known quantities.

[0081] Flight turntable control command yaw axis φ * , pitch axis θ * and the rolling axis γ * They are

[0082] φ * =arcsin(sin(φ-β0)cosθ)

[0083]

[0084]

[0085] Among them, φ, θ, and γ are the yaw, pitch, and roll attitude angles of the platform where the active and passive radar detection device of the test X\W is located, which are known quantities.

[0086] The embodiment of the present invention also discloses a shift control system for simulating active and passive radar detection devices, such as Figure 1 and Figure 2 As shown, it includes active and passive radar detection devices, simulation control systems and response modules.

[0087] The active and passive radar detection devices detect target information and change operating states accordingly. The active and passive radar detection devices operate in the passive band, detecting target information in real time and making judgments based on the target information. If the conditions for handover are met, the handover start time is recorded.

[0088] The active and passive radar detection devices start timing from the start time of the shift handover; if the timing time meets the shift handover time, a shift end mark is given and the active band working state is turned on; if the timing time does not meet the shift handover time, a shift handover mark is given and the working state at the shift start point is maintained.

[0089] The simulation control system collects working status information and parses the working status information to obtain flag information and control instructions. The simulation control system collects active band working status information or working status information of the shift start point in real time.

[0090] The flag information includes a shift handover end flag or a shift handover flag. The control instructions include control instructions during the shift handover and control instructions after the shift handover. The control instructions during the shift handover include target motion platform control instructions during the shift handover and flight turntable control instructions during the shift handover. The control instructions after the shift handover include target motion platform control instructions after the shift handover and flight turntable control instructions after the shift handover.

[0091] The response module responds to flag information and control commands. It includes a target simulator, a flight turntable, and a target motion platform. The target simulator disables target information based on the shift handover flag, or enables it based on the shift end flag. The target information is the radio frequency radiation signal emitted by the target simulator.

[0092] The target motion platform executes the target motion platform control command during the shift handover or the target motion platform control command after the shift handover. The flight turntable executes the flight turntable control command during the shift handover or the flight turntable control command after the shift handover.

[0093] The present invention's X / W active / passive radar detection device simulation handover control method primarily achieves stable control of radar detection device simulation handover from the passive X-band to the active W-band, ensuring high-precision simulation. Utilizing a hardware-in-the-loop simulation target motion platform, a flight turntable, and a target simulator, combined with the radar detection device under test, the present invention implements a smooth transition from the passive X-band to the active W-band within the hardware-in-the-loop simulation handover control loop through an algorithm. This improves the wideband, high-precision simulation capabilities of a mechanical array reconfigurable RF imaging hardware-in-the-loop simulation system.

[0094] The present invention achieves stable control of the target field of view center transition from the X-band to the W-band. Using a hardware-in-the-loop simulation target motion platform, a flight turntable, and a target simulator, combined with a radar detection device under test, the present invention achieves a smooth transition from the passive X-band to the active W-band in the simulated radar detection device through an algorithm within the hardware-in-the-loop simulation handover control loop.

[0095] The present invention relates to a handover control method for simulating an X\W active and passive radar detection device, and relates to the technical field of real-time simulation control. It solves the problem of stable control of active and passive handover during a simulation test of an X\W active and passive radar detection device. The X\W active and passive radar detection device gives its working status in real time based on the detected target information, and the simulation control system collects the working status of the test device in real time, solves and issues control instructions, and the flight turntable, target motion platform, and target simulation device execute corresponding control instructions to complete a smooth transition of the handover. The handover control method for simulating an X\W active and passive radar detection device achieves stable control of the handover of the working status of the X\W active and passive radar detection device simulation test, and effectively improves the wide-band and high-precision simulation capability of the simulation system.

[0096] Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, and units provided by the present invention in purely computer-readable program code, it is entirely possible to implement the same functions of the system and its various devices, modules, and units provided by the present invention in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered as structures within the hardware component; the devices, modules, and units for implementing various functions can also be considered as both software modules implementing the method and structures within the hardware component.

[0097] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A shift control method for active and passive radar detection device simulation, characterized in that: The steps include: Detection step: detect target information and change working state according to the target information; Parsing step: collecting working status information, parsing the flag information and control instructions according to the working status information; Response step: response flag information and control instructions; The detection step comprises the following steps: Signal detection steps: Execute the passive band working state, detect target information in real time, make judgments based on the target information, and record the start time of the shift if the shift handover conditions are met; Timing steps: Start timing from the start time of the shift handover; if the timing duration meets the shift handover duration, give a shift end mark and start the active band working state; if the timing duration does not meet the shift handover duration, give a shift handover mark and keep the working state at the start point of the shift handover; In the analysis step, active band working status information or shift start point working status information is collected in real time; The sign information includes a shift end sign or a shift handover sign; The control instructions include control instructions during the handover process and control instructions after the handover; The control instructions during the handover process include the target motion platform control instructions during the handover process and the flight turntable control instructions during the handover process; The control instructions after the shift is completed include the target motion platform control instructions after the shift is completed and the flight turntable control instructions after the shift is completed; Specific solution process of control instructions: Taking the X-band signal radiator as the reference, the angular error between the W-band signal radiator and the reference is measured in combination with the tested X\W active and passive radar detection device. The elevation error is recorded as Δε, and the azimuth error is recorded as Δβ. The altitude and azimuth control transition adjustment values ​​ε0 and β0 are: ε0=(t-T0)×Δεt <T1 ε0=Δε t≥T1 β0=(t-T0)×Δβt <T1 β0=Δβ t≥T1 Among them, t is the duration of the simulation test, T0 is the start time of the shift handover, and T1 is the end time of the shift handover; Target motion platform height control command ε * and azimuth control command β * They are e * =arcsin(sinεcosε0-cosεsinε0cos(β-β0)) Among them, ε and β are the theoretically calculated altitude and azimuth control instructions without adjustment, which are known quantities; the flight turntable control instruction yaw axis φ * , pitch axis θ * and the rolling axis γ * They are f * =arcsin(sin(φ-β0)cosθ) Among them, φ, θ, and γ are the yaw, pitch, and roll attitude angles of the platform where the active and passive radar detection device of the test X\W is located, which are known quantities.

2. The shift control method for active and passive radar detection device simulation according to claim 1, characterized in that: The responding step includes a shift handover mark responding step: closing the target information according to the shift handover mark; Execute the target motion platform control instructions during the handover process and the flight turntable control instructions during the handover process, and return to the timing step.

3. The shift control method for active and passive radar detection device simulation according to claim 1, characterized in that: The response step includes an end mark response step: opening target information according to the shift end mark; Execute the target motion platform control instructions after the handover and the flight turntable control instructions after the handover, and the handover is completed.

4. A shift control system for active and passive radar detection device simulation, characterized in that: The shift control method for simulating an active and passive radar detection device according to any one of claims 1 to 3 is applied, comprising an active and passive radar detection device, a simulation control system, and a response module; The active and passive radar detection device detects target information and changes its working state according to the target information; The simulation control system collects working status information and parses the working status information to obtain flag information and control instructions; The response module responds to flag information and control instructions; The active and passive radar detection device performs a passive band working state, detects target information in real time, makes a judgment based on the target information, and records the start time of the shift if the shift handover conditions are met; The active and passive radar detection device starts timing from the start time of the shift handover; if the timing time meets the shift handover time, a shift end mark is given and the active band working state is turned on; if the timing time does not meet the shift handover time, a shift handover mark is given and the working state of the shift start point is maintained; The simulation control system collects active band working status information or shift starting point working status information in real time; The sign information includes a shift end sign or a shift handover sign; The control instructions include control instructions during the handover process and control instructions after the handover; The control instructions during the handover process include the target motion platform control instructions during the handover process and the flight turntable control instructions during the handover process; The control instructions after the shift handover include a target motion platform control instruction after the shift handover and a flight turntable control instruction after the shift handover.

5. The shift control system for active and passive radar detection device simulation according to claim 4, characterized in that: The response module includes a target simulation device, a flight turntable and a target motion platform; The target simulation device closes the target information according to the shift handover mark; The target motion platform executes the target motion platform control instructions during the handover process; The flight turntable executes flight turntable control instructions during the handover process.

6. The shift control system for active and passive radar detection device simulation according to claim 5, characterized in that: The target simulation device turns on the target information according to the shift end mark; The target motion platform executes the target motion platform control instruction after the shift is completed; The flight turntable executes the flight turntable control instructions after the handover is completed.

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