A multi-target jamming and background simulation device and method for communication signals

Abstract

The application discloses a multi-target interference and background simulation device for communication signals, which comprises a power division phase shift network and an active array system; the reconnaissance guiding device is used for detecting and receiving target signals and sending the target signals to a host computer; the host computer controls a signal simulation source to generate multiple communication interference signals and background signals according to parameter information of the target signals; the signal simulation source generates electronic interference signals or background signals, which are processed by a switch gating network and the power division phase shift network, and then are emitted by the active array system; the active array system comprises multiple subarray antennas; each subarray antenna is separately provided with a phased array transmitter and a signal simulation source; the signal simulation source generates electronic interference signals or background signals, which are sent to the subarray antenna by the phased array transmitter; interference signals or background signals are simultaneously constructed for multiple targets; the device can better simulate a complex environment with different intensities and magnitudes of multiple signals, and meets the test requirements of multiple test devices.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of signal interference, and particularly relates to a multi-target interference and background simulation device and method. BACKGROUND

[0002] In modern war, electronic warfare as an attack and defense combat means is more and more important, or becomes a key factor for success or failure. In future war, electronic warfare will certainly play a huge role. Radar electronic jamming as a part of electronic warfare aims to weaken the combat performance of enemy radars. With the continuous confrontation between radars and radar countermeasure equipment, great development has been achieved, and jamming patterns and anti-jamming means are various.

[0003] However, the existing electronic jamming equipment cannot adapt to the complex environment of multiple signals with different intensities and severities; and cannot meet the application requirements of cooperating with multiple test equipment. SUMMARY

[0004] The purpose of the application is to provide a multi-target interference and background simulation device for communication signals, which can simultaneously construct a large bandwidth and high power interference / background scene for multiple targets; and can better simulate a complex environment of multiple signals with different intensities and severities, and meet the test requirements of cooperating with multiple test equipment.

[0005] To achieve the above purpose, the technical scheme adopted by the application is:

[0006] The application provides a multi-target interference and background simulation device for communication signals, which comprises a reconnaissance guidance device, a main control computer, a signal simulation source, a switch gating network, a power division and phase shift network and an active array system. The reconnaissance guidance device detects and receives target signals and sends them to the main control computer. The main control computer obtains sample information from the target signals and sends signals to the signal simulation source. The main control computer controls the signal simulation source to generate multiple communication jamming signals and background signals according to the parameter information of the target signals. The signal simulation source, the switch gating network, the power division and phase shift network and the active array system are sequentially connected in communication. The signal simulation source generates electronic jamming signals or background signals, which are processed by the switch gating network and the power division and phase shift network, and then emitted by the active array system.

[0007] The active array system comprises multiple subarray antennas. Each subarray antenna is separately configured with a phased array transmitter and a signal simulation source. The signal simulation source generates electronic jamming signals or background signals, which are sent to the subarray antenna by the phased array transmitter.

[0008] When conducting single-target confrontation, each subarray antenna is excited by the input signal generated by a single signal analog source, forming a single high-power transmit beam that radiates towards the area threatening the target; when conducting single-target confrontation, each subarray antenna forms a low-power transmit beam to interfere with the target.

[0009] Preferably, the active array system is capable of generating communication interference and background signals with a maximum bandwidth of 1 GHz.

[0010] Preferably, the active array system is capable of simultaneously generating at least 4 interference signals and at least 500 background signals.

[0011] Preferably, the active array system is equipped with a liquid-cooled environmental control device; the liquid-cooled environmental control device is electrically connected to the main control computer; the liquid-cooled environmental control device is used to regulate the temperature of the active array system.

[0012] Preferably, the subarray antennas in the active array system are arranged in an array.

[0013] Preferably, the active array system is configured with an amplitude and phase calibration network; the amplitude and phase calibration network generates a calibration signal and sends it to the active array system; the active array system couples the calibration signal to form a feedback signal and sends it back to the amplitude and phase calibration network; the amplitude and phase calibration network compares the calibration signal and the feedback signal to obtain a calibration table; the calibration table is used to calibrate each active array channel in the active array system.

[0014] Preferably, it also includes a beam control device; the beam control device is communicatively connected to the main control computer; the output terminal of the beam control device is communicatively connected to the power divider phase shifter network; the main control computer controls the power divider phase shifter network through the beam control device to deflect the transmitted beam.

[0015] Preferably, it also includes a servo turntable; the active array system is mounted on the servo turntable; the main control computer is connected to the servo turntable through a turntable control device; the main control computer controls the rotation of the servo turntable to adjust the radiation angle of the active array system.

[0016] A second aspect of the present invention provides a control method for a multi-target interference and background simulation device for communication signals, comprising:

[0017] Receive the mission plan and initialize the multi-target interference and background simulation device according to the mission plan;

[0018] When the mission plan determines that a warning is needed for the airspace of the threatening target, the servo turntable is directed to the airspace of the threatening target; the airspace of the threatening target is then reconnoitered using reconnaissance and guidance equipment.

[0019] If the reconnaissance and guidance equipment fails to detect the target, the active array system is controlled to carry out preventative suppression jamming or silence towards the airspace of the threatening target;

[0020] If the reconnaissance guidance equipment detects a target, it determines the number of targets detected. When a single target is detected, each subarray antenna is excited by the input signal generated by a signal analog source, forming a single high-power transmission beam that radiates toward the threatening target. When multiple targets are detected, each subarray antenna is excited by the input signal generated by the corresponding signal analog source, and each subarray antenna forms a low-power transmission beam to interfere with the target.

[0021] Preferably, when a single target is detected, each subarray antenna is excited by an input signal generated by a single analog signal source to form a single high-power transmit beam and radiate it toward the threatening target, including:

[0022] The system acquires the beam angle, communication signal parameters, and detected waveform samples of a single threat target detected by the guidance device; based on the beam angle, communication signal parameters, and detected waveform samples of a single threat target, it generates the required interference simulation signal or background simulation signal from a signal simulation source and inputs it into each subarray antenna.

[0023] Based on the detection frequency in the communication signal parameters, the interference simulation signal or background simulation signal is modulated onto the same carrier frequency as the detection frequency, and each subarray antenna together forms a single high-power transmission beam and radiates it toward the threat target.

[0024] Preferably, when multiple targets are detected, each subarray antenna is excited by the input signal generated by the corresponding signal analog source, and the subarray antennas form a low-power transmission beam to interfere with the targets respectively, including:

[0025] The system acquires the beam angle, communication signal parameters, and detected waveform samples of a single threat target detected by the guidance device; based on the beam angle, communication signal parameters, and detected waveform samples of a single threat target, each signal simulation source generates the required interference simulation signal or background simulation signal, which is then input into the corresponding subarray antenna.

[0026] Each individual subarray antenna is independently controlled to synthesize a low-power transmit beam to counter the jamming target, based on the beam angle of its respective threat target.

[0027] A third aspect of the present invention provides an engineering vehicle, including a vehicle body; a lifting device is provided on the vehicle body; and a multi-target interference and background simulation device is disposed on the lifting device.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] The signal simulation source described in this invention generates communication interference signals or background signals, which are then transmitted to subarray antennas via a phased array transmitter. It can simultaneously generate multiple communication interference signals (≥4 channels) and background signals (≥500 channels), or generate them independently, allowing for flexible configuration. During single-target engagement, each subarray antenna is excited by the input signal generated by one signal simulation source, forming a single high-power transmission beam that radiates towards the target area. During single-target engagement, each subarray antenna forms a low-power transmission beam to interfere with the target. It can simultaneously construct large-bandwidth (instantaneous bandwidth 1GHz) communication interference signals and background signals for multiple targets, with adjustable bandwidths for both signals in steps less than 1MHz, creating high-power interference / background scenarios. This allows for better simulation of complex environments with varying signal intensities and strengths, accommodating the testing requirements of various devices under test. Attached Figure Description

[0030] Figure 1 This is a structural diagram of a multi-target interference and background simulation device for communication signals provided in Embodiment 1 of the present invention;

[0031] Figure 2 This is a structural diagram of the active array system provided by the present invention;

[0032] Figure 3 This is a control flowchart of the multi-target interference and background simulation device provided in Embodiment 2 of the present invention;

[0033] Figure 4 This is a schematic diagram of the principle of synthesizing the transmitted beam by each subarray antenna provided in Embodiment 2 of the present invention;

[0034] Figure 5 This is a schematic diagram of the independent transmission beam of each subarray antenna provided in Embodiment 2 of the present invention;

[0035] Figure 6 This is a structural diagram of the engineering vehicle provided in Embodiment 2 of the present invention;

[0036] In the diagram, 1 is the vehicle body, 11 is the leveling mechanism, 12 is the lifting mechanism, 2 is the servo turntable, and 3 is the active array system. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0038] Example 1

[0039] like Figure 1 and Figure 2As shown, this embodiment provides a multi-target interference and background simulation device for communication signals, including a servo turntable, a beam control device, a reconnaissance and guidance device, a main control computer, a signal simulation source, a switch gating network, a power divider phase shifter network, and an active array system; the reconnaissance and guidance device reconnoiters and receives target signals and sends them to the main control computer, the main control computer obtains sample information from the target signals and sends the signal simulation source; the main control computer controls the signal simulation source to generate multiple communication interference signals and background signals according to the parameter information of the target signals.

[0040] The multi-target interference and background simulation device can generate communication interference and background signals with various communication modulation styles and a large bandwidth (instantaneous bandwidth 1GHz). The signal bandwidth can be set in increments of less than 1MHz. The multi-target interference and background simulation device can generate communication interference signals or background signals simultaneously, or one of them, and can be flexibly set. The multi-target interference and background simulation device can generate multiple interference signals (≥4 channels) and multiple background signals (≥500 channels) simultaneously.

[0041] The signal simulation source, the switch gating network, the power divider phase shifter network, and the active array system are sequentially connected in communication. The signal simulation source generates electronic interference signals or background signals, which are processed by the switch gating network and the power divider phase shifter network, and then transmitted outward by the active array system.

[0042] The active array system includes multiple sub-array antennas; the sub-array antennas in the active array system are distributed in an array; each sub-array antenna is individually equipped with a phased array transmitter and a signal simulation source; the signal simulation source generates electronic interference signals or background signals, which are then transmitted to the sub-array antennas via the phased array transmitter;

[0043] The active array system is equipped with an amplitude and phase calibration network; the amplitude and phase calibration network generates a calibration signal and sends it to the active array system; the active array system couples the calibration signal to form a feedback signal and sends it back to the amplitude and phase calibration network; the amplitude and phase calibration network compares the calibration signal and the feedback signal to obtain a calibration table; the calibration table is used to calibrate the subarray antennas.

[0044] The beam control device is communicatively connected to the main control computer; the output of the beam control device is communicatively connected to the power divider / phase shifter network; the main control computer controls the power divider / phase shifter network through the beam control device to deflect the transmitted beam. The beam control device controls the antenna beam pointing of each subarray of the active phased array antenna to interfere with signals in a specified airspace.

[0045] The active array system is mounted on a servo turntable; the main control computer is connected to the servo turntable via a turntable control device; the main control computer controls the rotation of the servo turntable to adjust the radiation angle of the active array system. The active array system is equipped with a liquid-cooled environmental control device; the liquid-cooled environmental control device is electrically connected to the main control computer; the liquid-cooled environmental control device is used to regulate the temperature of the active array system.

[0046] When conducting single-target confrontation, each subarray antenna is excited by the input signal generated by a single signal simulation source, forming a single high-power transmit beam that radiates towards the target area. When conducting single-target confrontation, each subarray antenna forms a low-power transmit beam to interfere with the target. It can simultaneously construct large-bandwidth, high-power interference / background scenarios for multiple targets. It can better simulate complex environments with different signal intensities and strengths, and meet the test requirements of various test devices.

[0047] Example 2

[0048] like Figure 3 and Figure 5 As shown, this embodiment provides a control method for a multi-target interference and background simulation device for communication signals as described in Embodiment 1, including:

[0049] Receive the mission plan and initialize the multi-target interference and background simulation device according to the mission plan;

[0050] When the mission plan determines that a warning is needed for the airspace of the threatening target, the servo turntable is directed to the airspace of the threatening target; the airspace of the threatening target is then reconnoitered using reconnaissance and guidance equipment.

[0051] If the reconnaissance and guidance equipment fails to detect the target, the active array system is controlled to carry out preventative suppression jamming or silence towards the airspace of the threatening target;

[0052] If the reconnaissance guidance equipment detects a target, determine the number of targets detected;

[0053] When a single target is detected, the methods by which each subarray antenna is excited by an input signal generated by a single analog signal source to form a single high-power transmit beam and radiate toward the threatening target include:

[0054] The system acquires the beam angle, communication signal parameters, and detected waveform samples of a single threat target detected by the guidance device; based on the beam angle, communication signal parameters, and detected waveform samples of a single threat target, it generates the required interference simulation signal or background simulation signal from a signal simulation source and inputs it into each subarray antenna.

[0055] Based on the detection frequency in the communication signal parameters, the interference simulation signal or background simulation signal is modulated onto the same carrier frequency as the detection frequency, and each subarray antenna together forms a single high-power transmission beam and radiates it toward the threat target.

[0056] When multiple targets are detected, each subarray antenna is excited by the input signal generated by the corresponding signal analog source, and the subarray antennas form a low-power transmission beam to interfere with the targets. Methods include:

[0057] The system acquires the beam angle, communication signal parameters, and detected waveform samples of a single threat target detected by the guidance device; based on the beam angle, communication signal parameters, and detected waveform samples of a single threat target, each signal simulation source generates the required interference simulation signal or background simulation signal, which is then input into the corresponding subarray antenna.

[0058] Each individual subarray antenna is independently controlled to synthesize a low-power transmit beam to counter the jamming target, based on the beam angle of its respective threat target.

[0059] Example 3

[0060] An engineering vehicle includes a body 1; a lifting device 12 is provided on the body 1; the active array system 3 of the multi-target interference and background simulation device described in Embodiment 1 is disposed on a servo turntable 2; the servo turntable 2 is disposed on the lifting device 12; a plurality of leveling mechanisms 11 are arranged around the body 1; the body 1 is leveled by means of the leveling mechanisms 11.

[0061] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can 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.) containing computer-usable program code.

[0062] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1A device that provides the functions specified in one or more boxes.

[0063] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0064] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for simulating multi-target interference and background interference of communication signals, characterized in that, The system includes reconnaissance and guidance equipment, a main control computer, a signal simulation source, a switching gating network, a power divider phase shifter network, and an active array system. The reconnaissance and guidance equipment receives target signals and transmits them to the main control computer. The main control computer obtains sample information from the target signals and sends it to the signal simulation source. The main control computer controls the signal simulation source to generate multiple communication interference signals and background signals based on the parameter information of the target signals. The signal simulation source, the switching gating network, the power divider phase shifter network, and the active array system are sequentially connected in communication. The electronic interference signals or background signals generated by the signal simulation source are processed by the switching gating network and the power divider phase shifter network, and then transmitted outward by the active array system. The active array system includes multiple sub-array antennas; each sub-array antenna is individually equipped with a phased array transmitter and a signal simulation source; the signal simulation source generates electronic interference signals or background signals, which are then transmitted to the sub-array antennas via the phased array transmitter. When a single target is detected, each subarray antenna is excited by the input signal generated by a single analog signal source, forming a single high-power transmit beam that radiates toward the threatening target. Specifically, this includes: The system acquires the beam angle, communication signal parameters, and detected waveform samples of a single threat target detected by the guidance device; based on the beam angle, communication signal parameters, and detected waveform samples of a single threat target, it generates the required interference simulation signal or background simulation signal from a signal simulation source and inputs it into each subarray antenna. Based on the detection frequency in the communication signal parameters, the interference simulation signal or background simulation signal is modulated onto the same carrier frequency as the detection frequency, and each subarray antenna together forms a single high-power transmission beam and radiates it toward the threatening target. When multiple targets are detected, each subarray antenna is excited by the input signal generated by the corresponding analog signal source. Each subarray antenna then forms a low-power transmit beam to interfere with the targets, specifically including: The system acquires the beam angle, communication signal parameters, and detected waveform samples of a single threat target detected by the guidance device; based on the beam angle, communication signal parameters, and detected waveform samples of a single threat target, each signal simulation source generates the required interference simulation signal or background simulation signal, which is then input into the corresponding subarray antenna. Each individual subarray antenna is independently controlled to synthesize a low-power transmit beam to counter the jamming target, based on the beam angle of its respective threat target.

2. The multi-target interference and background simulation device for communication signals according to claim 1, characterized in that, The active array system is capable of generating communication interference and background signals with a maximum bandwidth of 1 GHz.

3. The multi-target interference and background simulation device for communication signals according to claim 1, characterized in that, The active array system can simultaneously generate at least 4 interference signals and at least 500 background signals.

4. The multi-target interference and background simulation device for communication signals according to claim 1, characterized in that, The active array system is equipped with a liquid-cooled environmental control device; the liquid-cooled environmental control device is electrically connected to the main control computer; the liquid-cooled environmental control device is used to regulate the temperature of the active array system.

5. The multi-target interference and background simulation device for communication signals according to claim 1, characterized in that, The subarray antennas in the active array system are arranged in an array.

6. The multi-target interference and background simulation device for communication signals according to claim 1, characterized in that, The active array system is equipped with an amplitude and phase calibration network; the amplitude and phase calibration network generates a calibration signal and sends it to the active array system; the active array system couples the calibration signal to form a feedback signal and sends it back to the amplitude and phase calibration network; The amplitude and phase calibration network compares the calibration signal and the feedback signal to obtain a calibration table; the calibration table is used to calibrate each active array channel in the active array system.

7. The multi-target interference and background simulation device for communication signals according to claim 1, characterized in that, It also includes a beam control device; the beam control device is communicatively connected to the main control computer; the output end of the beam control device is communicatively connected to the power divider phase shifter network; the main control computer controls the power divider phase shifter network through the beam control device to deflect the transmitted beam.

8. The multi-target interference and background simulation device for communication signals according to claim 1, characterized in that, It also includes a servo turntable; the active array system is mounted on the servo turntable; the main control computer is connected to the servo turntable through a turntable control device; the main control computer controls the rotation of the servo turntable to adjust the radiation angle of the active array system.

9. A control method for a multi-target interference and background simulation device for communication signals according to any one of claims 1 to 8, characterized in that, include Receive the mission plan and initialize the multi-target interference and background simulation device according to the mission plan; When the mission plan determines that a warning is needed for the airspace of the threatening target, the servo turntable is directed to the airspace of the threatening target; the airspace of the threatening target is then reconnoitered using reconnaissance and guidance equipment. If the reconnaissance and guidance equipment fails to detect the target, the active array system is controlled to carry out preventative suppression jamming or silence towards the airspace of the threatening target; If the reconnaissance guidance equipment detects a target, determine the number of targets detected; When a single target is detected, each subarray antenna is excited by the input signal generated by a single analog signal source, forming a single high-power transmit beam that radiates toward the threatening target; when multiple targets are detected, each subarray antenna is excited by the input signal generated by the corresponding analog signal source, and each subarray antenna forms a low-power transmit beam to interfere with the targets respectively.

10. An engineering vehicle, comprising a body; a lifting device is provided on the body; the multi-target interference and background simulation device according to any one of claims 1 to 8 is disposed on the lifting device.

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