A single-vehicle, single-mounted anti-drone attack system

Abstract

This invention relates to the field of anti-drone attack technology and discloses a single-vehicle, single-mount anti-drone attack system, comprising: a vehicle-mounted platform, which is a wheeled motor vehicle chassis with an independent power supply system; a conformal array antenna, which is manufactured using a multi-layer pressing conformal process; an all-solid-state high-power microwave source, installed inside the vehicle-mounted platform; and a controller connected to the all-solid-state high-power microwave source and the conformal array antenna. The conformal array antenna, through a multi-layer pressing conformal process, completely conforms the antenna array surface to the vehicle body skin, forming a spherical conformal phased array layout. This achieves 360-degree omnidirectional electronic scanning coverage without mechanical rotation, significantly reducing the space occupied by the antenna while preserving the original structural shape of the vehicle, providing excellent camouflage and concealment. Furthermore, the system utilizes a flexible vertical interconnection technology to achieve solderless connection of high-frequency signals, improving system reliability and maintainability.

Description

Technical Field

[0001] This invention relates to the field of anti-drone attack technology, specifically a single-vehicle, single-mount anti-drone attack system. Background Technology

[0002] With the popularization of drone technology, consumer and industrial drones are widely used in aerial photography, inspection, logistics and other fields. However, incidents of "black flights," illegal intrusions and even malicious attacks are becoming increasingly frequent, posing a serious threat to security in key areas, defense of large-scale events and military operations. Existing anti-drone methods are mainly divided into two categories: detection and jamming. Detection methods mainly rely on traditional radar and photoelectric sensors, but their ability to detect low, slow and small targets is limited, and it is difficult to distinguish drones from birds. Jamming methods mostly use radio frequency jammers to block drone image transmission or navigation signals, or use physical destruction methods such as lasers and nets. However, traditional vehicle-mounted anti-drone systems generally have large antennas that require mechanical rotating mechanisms to achieve omnidirectional coverage, which not only damages the original concealment of the vehicle structure, but also makes it difficult to achieve high-precision beam pointing and rapid target switching while in motion. At the same time, detection and attack functions are usually separate, resulting in slow reaction speed and insufficient ability to deal with swarm targets. In addition, existing high-power microwave systems are mostly based on vacuum electronic devices, which are large and heavy, have high power supply requirements, are difficult to integrate into a single vehicle platform, and lack accurate identification and efficient coupling and destruction mechanisms for the core electronic components of drones.

[0003] To address this, we propose a single-vehicle, single-mount anti-drone attack system. Summary of the Invention

[0004] The purpose of this invention is to provide a single-vehicle, single-mount anti-drone attack system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution, including: The vehicle-mounted platform is a wheeled motor vehicle chassis and has an independent power supply system; The conformal array antenna is manufactured using a multi-layer pressing conformal process. It uses a flexible high-frequency substrate as raw material to form the antenna array surface, which is completely attached to the inner or outer surface of the vehicle body skin of the vehicle platform. It is integrated with the vehicle body structure and the antenna array surface naturally bends with the curve of the vehicle body to form a spherical conformal phased array layout, achieving 360-degree omnidirectional or hemispherical airspace electronic scanning coverage without mechanical rotation. An all-solid-state high-power microwave source is installed inside the vehicle platform and electrically connected to the conformal array antenna. It includes a frequency synthesizer based on phase-locked loop technology, multiple solid-state power amplifier modules, and a power combining network for generating high-power microwave pulses. The controller, connected to the all-solid-state high-power microwave source and the conformal array antenna, is used to control the system's operating mode, target identification, beamforming, and energy scheduling. The system adopts an integrated "detection, interference, and destruction" operating mode, using the conformal array antenna and the all-solid-state high-power microwave source to achieve time-division multiplexing of low-power detection and high-power strike functions. The controller is configured to: in standby mode, control the generation of low-power detection signals, which are radiated through the conformal array antenna and the echo is received; when the echo analysis determines that the UAV has entered a defense distance range of 50 to 100 meters, control the switching to high-power pulse mode, radiating high-power microwave pulses towards the UAV, and directly destroying the UAV's core electronic components using electromagnetic coupling effects.

[0006] Preferably, the conformal array antenna and the vehicle platform structural components are connected via a button-type elastic vertical interconnect technology to achieve high-frequency signal connection: a micro-hole array is opened at a preset position on the vehicle structural components, and a button-type elastic connector is embedded in the micro-hole. Its two ends are elastically contacted with the feed point of the antenna unit and the RF port of the vehicle transceiver component, respectively, to achieve high-frequency signal transmission without solder joints or insertion / removal force. The operating frequency covers the fundamental frequency and its second harmonic frequency band, and the insertion loss is less than 0.5dB. The antenna units are connected through high-density integrated RF interconnect technology, integrating RF transmission lines, control lines, and power lines into the same multilayer board. The RF transmission lines adopt a coplanar waveguide or stripline structure with a characteristic impedance of 50Ω and a transmission loss of less than 0.2dB / cm in the operating frequency band. The conformal array antenna adopts a spherical conformal phased array design. The antenna unit normal direction changes with the curvature of the vehicle body, and the scanning range covers the azimuth angle of 0° to 360° and the elevation angle of -30° to +90°. The gain drop does not exceed 3dB within the ±60° scanning range.

[0007] Preferably, the frequency synthesizer in the all-solid-state high-power microwave source uses an integrated phase-locked loop chip, with the output frequency configured by a microcontroller; the range is 2.3GHz to 2.5GHz or 5.6GHz to 5.8GHz, and the phase noise is better than -97dBc / Hz at a 1kHz frequency offset; the solid-state power amplifier module uses gallium nitride high electron mobility transistors, with a single module output power of not less than 500W and an efficiency of not less than 50%; the power combining network uses a radial line spatial power combining structure or a waveguide magic-T combining network, with 4 to 16 combining channels, a peak power of over 2MW after combining, a pulse width of 100ns to 500ns, and an adjustable repetition frequency of 1kHz to 10kHz; it also includes a pulse modulator using solid-state switching devices, with pulse rise and fall times of less than 20ns; and it also includes an output power detection unit that monitors forward power and reflected power in real time and feeds them back to the controller, which automatically adjusts the frequency or phase according to the reflected power to achieve load mismatch protection.

[0008] Preferably, the controller includes a harmonic radar detection module, comprising the following steps: S1: Controls the generation of low-power detection pulses with a fundamental frequency of f0, a peak power of less than 1W, a pulse width of 1μs to 10μs, and a repetition period of T; S2: Receive the echo signal and perform spectrum analysis to extract the fundamental frequency component power, second harmonic power and third harmonic power; S3: Calculate the power ratio of the second harmonic to the fundamental frequency and the power ratio of the third harmonic to the fundamental frequency. The power ratio is expressed in dB. S4: Set the second harmonic power ratio threshold and the third harmonic power ratio threshold, wherein the second harmonic power ratio threshold ranges from -60dB to -40dB and the third harmonic power ratio threshold ranges from -70dB to -50dB, and is dynamically adjusted through a constant false alarm rate algorithm; S5: If the second harmonic power ratio or the third harmonic power ratio exceeds the corresponding threshold, the target is determined to be an electronic device containing a semiconductor junction, i.e., a suspected drone. S6: Utilize the multi-channel receiving capability of the conformal array antenna to estimate the target angle through digital beamforming or monopulse angle measurement techniques; S7: If harmonic response is detected near the same angle and the power ratio stably exceeds the threshold within 3 to 5 consecutive detection cycles, the target is confirmed as a hostile drone and the high-power strike mode is triggered. S8: The effectiveness of the strike is judged by monitoring the disappearance of harmonic signals after the strike.

[0009] Preferably, the controller includes a beamforming and energy scheduling module, configured to execute a beamforming algorithm based on a maximum three-dimensional spatial entropy model, specifically including: SA: Establish the geometric model of the conformal array antenna and record the position coordinates and radiation pattern function of the antenna elements; SB: Determine the desired beam pointing and beamwidth requirements; SC: With the goal of maximizing the three-dimensional spatial entropy, the three-dimensional spatial entropy is calculated based on the values ​​of the normalized power pattern at each sampling point in the azimuth and elevation angles. The normalized power pattern is obtained by normalizing the array far-field pattern function, which is composed of the superposition of the pattern of each unit multiplied by the excitation coefficient. SD: Introducing subarray partitioning variables, the antenna elements are divided into several subarrays. The elements in each subarray use the same excitation. The subarray partitioning problem is transformed into a convex integer programming problem, which constrains each element to belong to only one subarray, and the total number of subarrays does not exceed the number of hardware transceiver channels. SE: Uses binary encoding to represent the subarray affiliation, and uses heuristic algorithms or convex optimization solvers to solve for the optimal subarray partitioning scheme and the excitation coefficients of each subarray; SF: Generate amplitude and phase control words for each channel based on the solution results, and load them onto the conformal array antenna to achieve a low sidelobe, high-gain beam; SG: When the target distance is less than 30 meters, it automatically switches to wide beam mode, excites all units to be in phase or random phase, and generates a wide main lobe with a beamwidth of 3dB greater than 60° to deal with swarm targets.

[0010] Preferably, the controller is further configured to implement a multi-pulse cumulative strike strategy: in high-power strike mode, a high-repetition-rate pulse train is controlled to be emitted, with the number of pulses ranging from 5 to 20, the pulse repetition frequency ranging from 1 kHz to 10 kHz, and the pulse width ranging from 100 ns to 500 ns; the Kalman filter algorithm is used to predict the target trajectory, and the position of the target at the next moment is estimated iteratively through steps such as state prediction, error covariance prediction, Kalman gain calculation, state update, and error covariance update; the beam pointing of each pulse is adjusted in real time according to the predicted target position to compensate for the target motion.

[0011] Preferably, the system utilizes both front-door coupling and rear-door coupling mechanisms to destroy the core components of the UAV: ​​In the rear-door coupling mechanism, microwave pulses are coupled to the internal circuit board through the shell gaps and cables, inducing transient high voltage and high current on the printed circuit board traces. The induced voltage is proportional to the incident electric field strength, effective coupling length, the cosine of the angle between the electric field polarization direction and the trace direction, and the coupling efficiency factor. When the induced voltage exceeds the breakdown voltage of the chip I / O port, it causes the gate oxide layer to break down or the PN junction to break down again. The system design ensures that the incident electric field strength reaches more than 10^5 V / m at a distance of 50 meters, and the power density reaches 2.65×10^4 W / m². The controller automatically selects the strike frequency band according to the UAV type to enhance the front-door coupling efficiency.

[0012] Preferably, it also includes a quick deployment and disassembly interface: multiple mounting points are pre-set on the vehicle platform structure, and nuts are pre-embedded using high-strength engineering plastics or composite materials. Each subarray module of the conformal array antenna is fixed to the mounting points by quick-release buckles and locking screws; the all-solid-state high-power microwave source and controller are integrated into a standard chassis, and a guide rail slider is provided at the bottom of the chassis; all electrical connections use military-grade circular push-pull self-locking connectors to achieve blind mating; the total system installation time does not exceed 30 minutes, and the disassembly time does not exceed 20 minutes; a portable test unit is provided for testing the connectivity and phase consistency of each subarray module after installation.

[0013] Preferably, it also includes a moving operation mode: when the vehicle is traveling at a speed not exceeding 60 km / h, the system maintains continuous detection and strike capabilities; the controller has a built-in inertial measurement unit and a global navigation satellite system receiving module to acquire vehicle attitude and position information in real time; the beamforming and energy scheduling module dynamically adjusts the beam direction according to the vehicle attitude, and uses quaternion attitude calculation and coordinate transformation to compensate for antenna attitude changes caused by vehicle bumps and turns; the harmonic radar detection module uses a moving target detection algorithm to distinguish moving targets from fixed clutter using Doppler frequency shift; it uses a Kalman filter algorithm to predict the target's position at the next moment and adjusts the beam direction in advance to achieve dynamic tracking and strike; it has ground clutter suppression capabilities, and uses digital beamforming to create nulls in the clutter direction or uses space-time adaptive processing to eliminate false alarms caused by moving objects on the ground.

[0014] Preferably, it also includes camouflage and concealment functions: when the conformal array antenna is attached to the inner surface of the vehicle body skin, the skin is made of wave-transparent composite material or a coating with a frequency-selective surface, the dielectric constant of the wave-transparent composite material is 2.8~3.2, and the loss tangent is less than 0.01; when the skin is made of metal, a directional slot array is opened as a frequency-selective surface, so that the electromagnetic wave transmittance in the operating frequency band is greater than 80%; the all-solid-state high-power microwave source and controller chassis are hidden inside the vehicle; the heat dissipation air duct is shared with the vehicle's original air vents, and an electromagnetic shielding grille is installed inside; the system's radio frequency transmission is turned off or only transmits at extremely low power in standby mode, and the electromagnetic radiation level meets the civilian electromagnetic environment standards; it also includes a remote control terminal, which is a handheld tablet or smartphone, communicating with the controller through an encrypted wireless link for remote start / stop, status monitoring, alarm reception, and manual intervention and attack decision-making.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a conformal array antenna, using a multi-layer pressing conformal process to completely bond the antenna array surface to the vehicle body skin, forming a spherical conformal phased array layout. This achieves 360-degree omnidirectional electronic scanning coverage without mechanical rotation, significantly reducing the antenna's footprint while preserving the vehicle's original structural shape and providing excellent camouflage and concealment. The invention utilizes a flexible vertical interconnect technology to achieve solderless connection of high-frequency signals, improving system reliability and maintainability. It employs an all-solid-state high-power microwave source, integrating a gallium nitride power amplifier and a high-efficiency power combining network, achieving megawatt-level peak power output on a single vehicle platform. Combined with beamforming and energy dispatch modules, it can automatically switch between narrowband high-gain based on target distance. With both high-beam and wide-beam modes, it effectively counters attacks from single targets and swarms of drones. Employing an integrated "sensing, interference, and destruction" mode, it utilizes the nonlinear harmonic response characteristics of semiconductor junctions through a harmonic radar detection module to achieve time-division multiplexing of low-power detection and high-power strike. This enables precise identification and rapid destruction of core electronic components of drones within a 50-100 meter defense range, solving the reaction delay problem caused by the separation of detection and strike in traditional systems. Furthermore, it supports a moving operation mode, dynamically compensating for vehicle attitude changes through inertial measurement and Kalman filtering algorithms to achieve continuous tracking and strike of drones while in motion. It is also equipped with a rapid deployment and disassembly interface, allowing system installation to be completed within 30 minutes. Attached Figure Description

[0016] Figure 1 This is a structural block diagram of a single-vehicle, single-mount anti-drone attack system. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The present invention provides a technical solution comprising: The vehicle-mounted platform is a wheeled motor vehicle chassis and has an independent power supply system; The conformal array antenna is manufactured using a multi-layer pressing conformal process. It uses a flexible high-frequency substrate as raw material to form the antenna array surface, which is completely attached to the inner or outer surface of the vehicle body skin of the vehicle platform. It is integrated with the vehicle body structure and the antenna array surface naturally bends with the curve of the vehicle body to form a spherical conformal phased array layout, achieving 360-degree omnidirectional or hemispherical airspace electronic scanning coverage without mechanical rotation. An all-solid-state high-power microwave source is installed inside the vehicle platform and electrically connected to the conformal array antenna. It includes a frequency synthesizer based on phase-locked loop technology, multiple solid-state power amplifier modules, and a power combining network for generating high-power microwave pulses. The controller, connected to the all-solid-state high-power microwave source and the conformal array antenna, is used to control the system's operating mode, target identification, beamforming, and energy scheduling. The system adopts an integrated "detection, interference, and destruction" operating mode, using the conformal array antenna and the all-solid-state high-power microwave source to achieve time-division multiplexing of low-power detection and high-power strike functions. The controller is configured to: in standby mode, control the generation of low-power detection signals, which are radiated through the conformal array antenna and the echo is received; when the echo analysis determines that the UAV has entered a defense distance range of 50 to 100 meters, control the switching to high-power pulse mode, radiating high-power microwave pulses towards the UAV, and directly destroying the UAV's core electronic components using electromagnetic coupling effects.

[0019] Furthermore, the conformal array antenna and the vehicle platform structural components employ a button-like elastic vertical interconnect technology to achieve high-frequency signal connection: a micro-hole array is opened at a predetermined position on the vehicle structural components, and a button-like elastic connector is embedded in the micro-hole. Its two ends are elastically contacted with the feed point of the antenna unit and the RF port of the vehicle transceiver component, respectively, to achieve high-frequency signal transmission without solder joints or insertion / removal force. The operating frequency covers the fundamental frequency and its second harmonic band, and the insertion loss is less than 0.5dB. The antenna unit is connected through high-density integrated RF interconnect technology, integrating RF transmission lines, control lines, and power lines into the same multilayer board. The RF transmission line adopts a coplanar waveguide or stripline structure with a characteristic impedance of 50Ω and a transmission loss of less than 0.2dB / cm in the operating frequency band. The conformal array antenna adopts a spherical conformal phased array design. The antenna unit normal direction changes with the curvature of the vehicle body, and the scanning range covers the azimuth angle of 0° to 360° and the elevation angle of -30° to +90°. The gain drop does not exceed 3dB within the ±60° scanning range.

[0020] Furthermore, the frequency synthesizer in the all-solid-state high-power microwave source employs an integrated phase-locked loop chip, with the output frequency configured by a microcontroller; the range is 2.3GHz to 2.5GHz or 5.6GHz to 5.8GHz, and the phase noise is better than -97dBc / Hz at a 1kHz frequency offset; the solid-state power amplifier module uses gallium nitride high electron mobility transistors, with a single module output power of not less than 500W and an efficiency of not less than 50%; the power combining network adopts a radial line spatial power combining structure or a waveguide magic-T combining network, with 4 to 16 combining channels, achieving a peak power of over 2MW after combining, a pulse width of 100ns to 500ns, and an adjustable repetition frequency of 1kHz to 10kHz; it also includes a pulse modulator using solid-state switching devices, with pulse rise and fall times of less than 20ns; and it also includes an output power detection unit that monitors forward power and reflected power in real time and feeds them back to the controller, which automatically adjusts the frequency or phase based on the reflected power to achieve load mismatch protection.

[0021] Furthermore, the controller includes a harmonic radar detection module, comprising the following steps: S1: Controls the generation of low-power detection pulses with a fundamental frequency of f0, a peak power of less than 1W, a pulse width of 1μs to 10μs, and a repetition period of T; S2: Receive the echo signal and perform spectrum analysis to extract the fundamental frequency component power, second harmonic power and third harmonic power; S3: Calculate the power ratio of the second harmonic to the fundamental frequency and the power ratio of the third harmonic to the fundamental frequency. The power ratio is expressed in dB. S4: Set the second harmonic power ratio threshold and the third harmonic power ratio threshold, wherein the second harmonic power ratio threshold ranges from -60dB to -40dB and the third harmonic power ratio threshold ranges from -70dB to -50dB, and is dynamically adjusted through a constant false alarm rate algorithm; S5: If the second harmonic power ratio or the third harmonic power ratio exceeds the corresponding threshold, the target is determined to be an electronic device containing a semiconductor junction, i.e., a suspected drone. S6: Utilize the multi-channel receiving capability of the conformal array antenna to estimate the target angle through digital beamforming or monopulse angle measurement techniques; S7: If harmonic response is detected near the same angle and the power ratio stably exceeds the threshold within 3 to 5 consecutive detection cycles, the target is confirmed as a hostile drone and the high-power strike mode is triggered. S8: The effectiveness of the strike is judged by monitoring the disappearance of harmonic signals after the strike.

[0022] Furthermore, the controller includes a beamforming and energy scheduling module, configured to execute a beamforming algorithm based on a maximum three-dimensional spatial entropy model, specifically including: SA: Establish the geometric model of the conformal array antenna and record the position coordinates and radiation pattern function of the antenna elements; SB: Determine the desired beam pointing and beamwidth requirements; SC: With the goal of maximizing the three-dimensional spatial entropy, the three-dimensional spatial entropy is calculated based on the values ​​of the normalized power pattern at each sampling point in the azimuth and elevation angles. The normalized power pattern is obtained by normalizing the array far-field pattern function, which is composed of the superposition of the pattern of each unit multiplied by the excitation coefficient. SD: Introducing subarray partitioning variables, the antenna elements are divided into several subarrays. The elements in each subarray use the same excitation. The subarray partitioning problem is transformed into a convex integer programming problem, which constrains each element to belong to only one subarray, and the total number of subarrays does not exceed the number of hardware transceiver channels. SE: Uses binary encoding to represent the subarray affiliation, and uses heuristic algorithms or convex optimization solvers to solve for the optimal subarray partitioning scheme and the excitation coefficients of each subarray; SF: Generate amplitude and phase control words for each channel based on the solution results, and load them onto the conformal array antenna to achieve a low sidelobe, high-gain beam; SG: When the target distance is less than 30 meters, it automatically switches to wide beam mode, excites all units to be in phase or random phase, and generates a wide main lobe with a beamwidth of 3dB greater than 60° to deal with swarm targets.

[0023] Furthermore, the controller is also configured to implement a multi-pulse cumulative strike strategy: in high-power strike mode, a series of high-repetition-rate pulses is emitted, with the number of pulses ranging from 5 to 20, the pulse repetition frequency ranging from 1 kHz to 10 kHz, and the pulse width ranging from 100 ns to 500 ns; a Kalman filter algorithm is used to predict the target trajectory, and the target's position at the next moment is estimated iteratively through steps such as state prediction, error covariance prediction, Kalman gain calculation, state update, and error covariance update; the beam pointing of each pulse is adjusted in real time according to the predicted target position to compensate for the target motion.

[0024] Furthermore, the system utilizes both front-door coupling and rear-door coupling mechanisms to destroy the core components of the UAV. In the rear-door coupling mechanism, microwave pulses are coupled to the internal circuit board through the shell gaps and cables, inducing transient high voltage and high current on the printed circuit board traces. The induced voltage is proportional to the incident electric field strength, effective coupling length, the cosine of the angle between the electric field polarization direction and the trace direction, and the coupling efficiency factor. When the induced voltage exceeds the breakdown voltage of the chip I / O port, it causes the gate oxide layer to break down or the PN junction to break down again. The system design ensures that the incident electric field strength reaches more than 10^5 V / m at a distance of 50 meters, and the power density reaches 2.65×10^4 W / m². The controller automatically selects the strike frequency band according to the UAV type to enhance the front-door coupling efficiency.

[0025] Furthermore, it includes rapid deployment and disassembly interfaces: multiple mounting points are pre-set on the vehicle platform structure, and high-strength engineering plastics or composite materials are used to embed nuts. Each subarray module of the conformal array antenna is fixed to the mounting points by quick-release buckles and locking screws; the all-solid-state high-power microwave source and controller are integrated into a standard chassis, and the bottom of the chassis is equipped with a guide rail slider; all electrical connections use military-grade circular push-pull self-locking connectors to achieve blind mating connections; the total system installation time does not exceed 30 minutes, and the disassembly time does not exceed 20 minutes; a portable test unit is provided for testing the connectivity and phase consistency of each subarray module after installation.

[0026] Furthermore, it also includes a moving operation mode: when the vehicle is traveling at a speed not exceeding 60 km / h, the system maintains continuous detection and strike capabilities; the controller has a built-in inertial measurement unit and a global navigation satellite system receiving module to acquire vehicle attitude and position information in real time; the beamforming and energy scheduling module dynamically adjusts the beam direction according to the vehicle attitude, and uses quaternion attitude calculation and coordinate transformation to compensate for antenna attitude changes caused by vehicle bumps and turns; the harmonic radar detection module uses a moving target detection algorithm to distinguish moving targets from stationary clutter using Doppler frequency shift; it uses a Kalman filter algorithm to predict the target's position at the next moment and adjusts the beam direction in advance to achieve dynamic tracking and strike; it has ground clutter suppression capabilities, and uses digital beamforming to create nulls in the clutter direction or uses space-time adaptive processing to eliminate false alarms caused by moving objects on the ground.

[0027] Furthermore, it also includes camouflage and concealment functions: when the conformal array antenna is attached to the inner surface of the vehicle body skin, the skin is made of wave-transparent composite material or a coating with a frequency-selective surface. The dielectric constant of the wave-transparent composite material is 2.8~3.2, and the loss tangent is less than 0.01. When the skin is made of metal, a directional slot array is opened as a frequency-selective surface, so that the electromagnetic wave transmittance in the operating frequency band is greater than 80%. The all-solid-state high-power microwave source and controller chassis are hidden inside the vehicle. The heat dissipation air duct is shared with the vehicle's original air vents and is equipped with an electromagnetic shielding grille inside. In the standby state, the radio frequency transmission is turned off or only transmits at extremely low power, and the electromagnetic radiation level meets the civilian electromagnetic environment standards. It also includes a remote control terminal, which is a handheld tablet or smartphone that communicates with the controller through an encrypted wireless link for remote start / stop, status monitoring, alarm reception, and manual intervention and attack decision-making.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-vehicle, single-mount anti-drone attack system, characterized in that: include: The vehicle-mounted platform is a wheeled motor vehicle chassis and has an independent power supply system; The conformal array antenna is made using a multi-layer pressing conformal process. It uses a flexible high-frequency substrate as raw material to form the antenna array surface, which is completely attached to the inner or outer surface of the vehicle body skin of the vehicle platform. It is integrated with the vehicle body structure and the antenna array surface naturally bends with the curve of the vehicle body to form a spherical conformal phased array layout. An all-solid-state high-power microwave source is installed inside the vehicle platform and electrically connected to the conformal array antenna. It includes a frequency synthesizer based on phase-locked loop technology, multiple solid-state power amplifier modules, and a power combining network for generating high-power microwave pulses. The controller, connected to the all-solid-state high-power microwave source and the conformal array antenna, is used to control the system's operating mode, target recognition, beamforming, and energy scheduling.

2. The single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: The conformal array antenna and the vehicle platform structural components are connected via a button-type elastic vertical interconnect technology to achieve high-frequency signal connection: a micro-hole array is opened at a preset position on the vehicle structural components, and a button-type elastic connector is embedded in the micro-hole. Its two ends are elastically contacted with the feed point of the antenna unit and the RF port of the vehicle transceiver component, respectively, to achieve high-frequency signal transmission without solder joints or insertion / removal force. The operating frequency covers the fundamental frequency and its second harmonic frequency band. The antenna unit is connected through high-density integrated RF interconnect technology, integrating RF transmission lines, control lines and power lines in the same multilayer board.

3. The single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: The frequency synthesizer in the all-solid-state high-power microwave source uses an integrated phase-locked loop chip, and the output frequency is configured by a microcontroller; the solid-state power amplifier module uses gallium nitride high electron mobility transistors; the power combining network uses a radial line spatial power combining structure or a waveguide magic-T combining network; it also includes a pulse modulator using solid-state switching devices; and it also includes an output power detection unit that monitors forward power and reflected power in real time and feeds them back to the controller, which automatically adjusts the frequency or phase according to the reflected power to achieve load mismatch protection.

4. A single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: The controller includes a harmonic radar detection module, comprising the following steps: S1: Controls the generation of low-power detection pulses with a fundamental frequency of f0, a peak power of less than 1W, a pulse width of 1μs to 10μs, and a repetition period of T; S2: Receive the echo signal and perform spectrum analysis to extract the fundamental frequency component power, second harmonic power and third harmonic power; S3: Calculate the power ratio of the second harmonic to the fundamental frequency and the power ratio of the third harmonic to the fundamental frequency. The power ratio is expressed in dB. S4: Set the second harmonic power ratio threshold and the third harmonic power ratio threshold, wherein the second harmonic power ratio threshold ranges from -60dB to -40dB and the third harmonic power ratio threshold ranges from -70dB to -50dB, and is dynamically adjusted through a constant false alarm rate algorithm; S5: If the second harmonic power ratio or the third harmonic power ratio exceeds the corresponding threshold, the target is determined to be an electronic device containing a semiconductor junction, i.e., a suspected drone. S6: Utilize the multi-channel receiving capability of the conformal array antenna to estimate the target angle through digital beamforming or monopulse angle measurement techniques; S7: If harmonic response is detected near the same angle and the power ratio stably exceeds the threshold within 3 to 5 consecutive detection cycles, the target is confirmed as a hostile drone and the high-power strike mode is triggered. S8: The effectiveness of the strike is judged by monitoring the disappearance of harmonic signals after the strike.

5. A single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: The controller includes a beamforming and energy scheduling module, configured to execute a beamforming algorithm based on a maximum three-dimensional spatial entropy model, specifically including: SA: Establish the geometric model of the conformal array antenna and record the position coordinates and radiation pattern function of the antenna elements; SB: Determine the desired beam pointing and beamwidth requirements; SC: With the goal of maximizing the three-dimensional spatial entropy, the three-dimensional spatial entropy is calculated based on the values ​​of the normalized power pattern at each sampling point in the azimuth and elevation angles. The normalized power pattern is obtained by normalizing the array far-field pattern function, which is composed of the superposition of the pattern of each unit multiplied by the excitation coefficient. SD: Introducing subarray partitioning variables, the antenna elements are divided into several subarrays. The elements in each subarray use the same excitation. The subarray partitioning problem is transformed into a convex integer programming problem, which constrains each element to belong to only one subarray, and the total number of subarrays does not exceed the number of hardware transceiver channels. SE: Uses binary encoding to represent the subarray affiliation, and uses heuristic algorithms or convex optimization solvers to solve for the optimal subarray partitioning scheme and the excitation coefficients of each subarray; SF: Generate amplitude and phase control words for each channel based on the solution results, and load them onto the conformal array antenna to achieve a low sidelobe, high-gain beam; SG: When the target distance is less than 30 meters, it automatically switches to wide beam mode, excites all units to be in phase or random phase, and generates a wide main lobe with a beamwidth of 3dB greater than 60° to deal with swarm targets.

6. A single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: The controller is also configured to implement a multi-pulse cumulative strike strategy: in high-power strike mode, it controls the emission of a high-repetition-rate pulse train; it uses a Kalman filter algorithm to predict the target trajectory, and iteratively estimates the target's position at the next moment through steps such as state prediction, error covariance prediction, Kalman gain calculation, state update and error covariance update; The beam direction of each pulse is adjusted in real time according to the predicted target position to compensate for the target's motion.

7. A single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: The system utilizes two mechanisms—front-door coupling and rear-door coupling—to destroy the core components of the UAV. In the rear-door coupling mechanism, microwave pulses are coupled to the internal circuit board through gaps in the shell and cables, inducing transient high voltage and high current on the printed circuit board traces. The induced voltage is proportional to the incident electric field strength, effective coupling length, the cosine of the angle between the electric field polarization direction and the trace direction, and the coupling efficiency factor. The controller automatically selects the strike frequency band according to the UAV type to enhance the front-door coupling efficiency.

8. A single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: It also includes quick deployment and disassembly interfaces: multiple mounting bases are pre-set on the vehicle platform structure, and nuts are pre-embedded using high-strength engineering plastics or composite materials. Each subarray module of the conformal array antenna is fixed to the mounting bases by quick-release buckles and locking screws; the all-solid-state high-power microwave source and controller are integrated into a standard chassis, and a guide rail slider is provided at the bottom of the chassis; all electrical connections use military-grade circular push-pull self-locking connectors to achieve blind mating connections.

9. A single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: It also includes a working mode while in motion; the beamforming and energy scheduling module dynamically adjusts the beam direction according to the vehicle's attitude, and uses quaternion attitude calculation and coordinate transformation to compensate for antenna attitude changes caused by vehicle body bumps and turns; the harmonic radar detection module uses a moving target detection algorithm to distinguish moving targets from stationary clutter by using Doppler frequency shift.

10. A single-vehicle, single-mount anti-drone attack system according to claim 1, characterized in that: It also includes camouflage and concealment functions; the all-solid-state high-power microwave source and controller chassis are hidden inside the vehicle; the heat dissipation air duct is shared with the vehicle's original air vents and is equipped with an electromagnetic shielding grille inside; the system's radio frequency transmission is turned off or only transmits at extremely low power in standby mode, and the electromagnetic radiation level meets the standards for civilian electromagnetic environments; it also includes a remote control terminal.

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