Portable multifunctional AI enabling electronic countermeasure system

Abstract

A portable multifunctional AI enabling electronic countermeasure system relates to the technical field of electronic countermeasure, and comprises a host housing, the bottom of the host housing is provided with a tripod, and the surface of the host housing is provided with a plurality of broadband antennas and a reference omnidirectional antenna; a plurality of transceiving front-end assemblies, a receiving front-end assembly and a signal processing unit are arranged in the host shell, the transceiving front-end assemblies are electrically connected with the broadband antennas in a one-to-one correspondence manner, and the reference omnidirectional antenna is electrically connected with the receiving front-end assembly; the plurality of transceiving front-end assemblies and the receiving front-end assembly are electrically connected with the signal processing unit; the signal processing unit is used for processing the radio frequency signals output by the plurality of transceiving front-end assemblies and the receiving front-end assembly by adopting an AI algorithm model to generate corresponding interference signals, and the interference signals are sent to the broadband antenna through the plurality of transceiving front-end assemblies; the method is used for solving the problems of weak interference capability and slow deployment speed in the prior art.

Description

Technical Field

[0001] This invention relates to the field of electronic warfare technology, specifically to a portable, multifunctional AI-enabled electronic warfare system. Background Technology

[0002] Currently, commercial and consumer drones are being used more and more frequently in various complex application scenarios. These drones are characterized by low cost and ease of operation, but they also exhibit significant effects and potential interference risks in practical applications. The introduction of FPV (first-person view) drones has further amplified these threats. Their high maneuverability, flexible flight paths, and real-time manual loop control modes make them highly adaptable aerial platforms in certain special application environments.

[0003] The widespread application and technological potential of these drones have prompted all parties to increase their investment in the research and development and application of small and micro drone systems, while also driving in-depth thinking on technologies for the effective monitoring and control of such drones.

[0004] In addition to physical interception methods, technical means of countering drones mainly include non-physical denial methods. Among these, electronic countermeasures technology is an important soft-kill method. Traditional large and medium-sized electronic countermeasures systems are typically designed to target large radiation sources such as airborne radars, primarily serving macro-strategic and operational-level missions. However, consumer-grade drones are low-altitude, slow-moving, and small targets with limited flight range and varied behavior patterns. Therefore, traditional electronic countermeasures systems not only have technical mismatches when dealing with such targets, but are also insufficient in terms of economy and applicability. Furthermore, large-scale electronic countermeasures systems are bulky and conspicuously deployed, making rapid, covert deployment and agile response difficult, and thus unable to meet the demand for efficient handling of sudden, low-altitude, slow-moving, and small drone targets.

[0005] Chinese patent CN118962596A discloses an integrated intelligent reconnaissance digital signal processing module that combines communication and radar, which can integrate AI technology into the reconnaissance field to improve the intelligent capability of signal reconnaissance; however, the module is lacking in scalability and frequency coverage, and it only has reconnaissance without interference function, and its use environment is also limited.

[0006] Therefore, we propose an electronic countermeasures system that can accelerate deployment and effectively jam drones. Summary of the Invention

[0007] The purpose of this invention is to provide a portable, multifunctional AI-enabled electronic countermeasures system that addresses the problems of weak jamming capabilities and slow deployment speed in traditional systems.

[0008] This invention is achieved through the following technical solution: A portable multi-functional AI-enabled electronic countermeasures system includes a main unit housing, a tripod mounted on the bottom of the main unit housing, and multiple broadband antennas and a reference omnidirectional antenna mounted on the surface of the main unit housing. The main unit housing contains multiple transceiver front-end components, one receiver front-end component, and a signal processing unit. The multiple transceiver front-end components are electrically connected to multiple broadband antennas in a one-to-one correspondence, and the reference omnidirectional antenna is electrically connected to the receiver front-end component. Furthermore, the multiple transceiver front-end components and the receiver front-end component are all electrically connected to the signal processing unit. The signal processing unit is used to process the radio frequency signals output by multiple transceiver front-end components and receiving front-end components using an AI algorithm model, generate corresponding interference signals, and then send the interference signals to the broadband antenna through multiple transceiver front-end components.

[0009] Furthermore, the number of broadband antennas and transceiver front-end components is five, and the five broadband antennas are evenly arranged around the side of the main unit housing, while the reference omnidirectional antenna is installed on the top of the main unit housing.

[0010] Furthermore, the transceiver front-end assembly includes a first front-end switching network, a receiving front-end channel, a power amplifier, and a self-test source. The signal transceiver end of the first front-end switching network is electrically connected to the corresponding broadband antenna. The output end of the first front-end switching network is electrically connected to the receiving front-end channel. The output end of the receiving front-end channel is electrically connected to the signal processing unit. The receiving end of the power amplifier is electrically connected to the signal processing unit. The output end of the power amplifier is electrically connected to the first input end of the first front-end switching network. The second input end of the first front-end switching network is electrically connected to the self-test source.

[0011] Furthermore, the first front-end switch network includes two single-pole double-throw switches. The signal transceiver terminal of the first single-pole double-throw switch is electrically connected to the corresponding broadband antenna. The input terminal of the first single-pole double-throw switch is electrically connected to the output terminal of the power amplifier. The output terminal of the first single-pole double-throw switch is electrically connected to the second single-pole double-throw switch. The input terminal of the second single-pole double-throw switch is electrically connected to the self-test source, and the output terminal of the second single-pole double-throw switch is electrically connected to the receiving front-end channel.

[0012] Furthermore, the power amplifier includes an amplification unit and a feedback unit, wherein the amplification unit includes a first amplifier, a filter, a second amplifier, a first digitally controlled attenuator, a third amplifier and a first coupler connected in series, wherein the input terminal of the first amplifier is electrically connected to the signal processing unit, and the first output terminal of the first coupler is electrically connected to the first input terminal of the first front-end switching network. The feedback unit includes a detector and a power supply circuit for acquisition and control connected in series; wherein the input terminal of the detector is electrically connected to the second output terminal of the first coupler, and the output terminal of the power supply circuit for acquisition and control is electrically connected to the signal processing unit.

[0013] Furthermore, the receiving front-end component includes a single-pole double-throw switch, a receiving front-end channel, and a self-test source, wherein the first input terminal of the single-pole double-throw switch is electrically connected to the reference omnidirectional antenna, the second input terminal of the single-pole double-throw switch is electrically connected to the self-test source, and the output terminal of the single-pole double-throw switch is electrically connected to the receiving front-end channel.

[0014] Furthermore, the receiving front-end channel includes a second coupler, a bypass circuit, a second digitally controlled attenuator, a switching filter group, and a fourth amplifier connected in series, wherein the input terminal of the second coupler is electrically connected to the output terminal of the corresponding single-pole double-throw switch, and the output terminal of the fourth amplifier is electrically connected to the signal processing unit.

[0015] Furthermore, the signal processing unit includes a backplane, and signal conditioning boards, signal processing boards, DRFM boards, synchronization clock boards, industrial computers, and power modules electrically connected to the backplane. The synchronous clock board is used to generate accurate and stable clock reference signals, which are then sent to other boards and multiple transceiver front-end components. The signal conditioning board is used to receive multiple transceiver front-end components and the radio frequency signals output by the receiving front-end components, and to amplify, filter and frequency convert them into intermediate frequency signals or direct radio frequency signals. The DRFM board performs high-speed digital acquisition and storage of intermediate frequency or radio frequency signals from the signal conditioning board, and reconstructs and generates interference digital signals according to the interference instructions output by the industrial control computer. The interference digital signals are converted by the DAC module and output to multiple transceiver front-end components. The signal processing board receives digital signal data from the DRFM board through the backplane, performs real-time direction finding signal processing and interference waveform generation, and transmits the direction finding signal and interference waveform to the outside world. The industrial control computer is used to receive direction-finding signals and interference waveforms from the signal processing board, as well as digital signal data from the DRFM board, and to generate interference commands using an AI algorithm model. The power module provides power to each board through the backplane.

[0016] Furthermore, the AI ​​algorithm model includes a perception layer, a decision layer, and an execution layer. The perception layer performs a short-time Fourier transform on the digital signal data sent from the DRFM board to generate a time-spectrum graph, and uses a convolutional neural network to process the time-spectrum graph to obtain structured state information related to the direction-finding signal. The decision-making layer is able to generate various types of interference signals based on the interference waveform; The execution layer can match the structured state information of the direction finding signal with various interference signals to obtain the optimal interference signal.

[0017] Furthermore, the DRFM board includes an RFSOC chip, a DAC module, DDR4 memory, and FLSH memory. The RFSOC chip is used to perform high-speed digital acquisition of intermediate frequency or radio frequency signals from the signal conditioning board, and to reconstruct and generate interference digital signals according to the interference instructions output by the industrial control computer. The interference digital signal is converted by the DAC module and then output to multiple transceiver front-end components; The DDR4 memory and FLSH memory are used to store digitized signal data.

[0018] The technical solution of the present invention has at least the following advantages and beneficial effects: This invention discloses a portable, multifunctional AI-enabled electronic countermeasures system. The deployment speed of the system can be improved by setting up a tripod, and the integration of multiple broadband antennas and a reference omnidirectional antenna on the main unit shell can also improve the portability of the system.

[0019] In addition, by using AI algorithm models to process radio frequency signals, the goal of AI-enabled acceleration is achieved, thereby improving the electronic countermeasures system's ability to interfere with target drones. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one structure of the present invention; Figure 2 This is a schematic diagram of the signal processing unit structure of the present invention; Figure 3 This is a schematic diagram of the transceiver front-end component structure of the present invention; Figure 4 This is a schematic diagram of the receiving front-end component structure of the present invention; Figure 5 This is a schematic diagram of the DRFM board structure of the present invention; Figure 6 This is a schematic diagram of the signal conditioning board structure of the present invention; Figure 7 This is a schematic diagram of the synchronous clock board structure of the present invention; Figure 8 This is a schematic diagram of the signal processing board structure of the present invention.

[0021] Reference numerals: 1. Main unit housing; 2. Tripod; 3. Broadband antenna; 4. Reference omnidirectional antenna. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Example 1 like Figures 1-2 The portable multi-functional AI-enabled electronic countermeasures system shown includes a main unit housing 1, a tripod 2 mounted on the bottom of the main unit housing 1, and multiple broadband antennas 3 and a reference omnidirectional antenna 4 mounted on the surface of the main unit housing 1. The tripod 2 improves the deployment speed of the system, and integrating multiple broadband antennas 3 and a reference omnidirectional antenna 4 onto the main unit housing also enhances the system's portability. Furthermore, there are five broadband antennas 3 and five transceiver front-end components, with the five broadband antennas 3 evenly arranged around the side of the main unit housing 1, and the reference omnidirectional antenna 4 mounted on the top of the main unit housing 1. The broadband antennas 3 receive electromagnetic wave signals from a specific direction, and because they are arranged in an array, the arrival time (phase) of the same signal at each antenna element will have slight differences. The broadband antennas 3 also radiate interference signals generated by the system in a specific direction. The reference omnidirectional antenna 4 provides a stable and uniform phase reference point for the entire direction-finding system. The main unit housing 1 is provided with multiple transceiver front-end components, one receiving front-end component, and a signal processing unit. The multiple transceiver front-end components are electrically connected to the multiple broadband antennas 3 in a one-to-one correspondence, and the reference omnidirectional antenna 4 is electrically connected to the receiving front-end component. Furthermore, the multiple transceiver front-end components and the receiving front-end component are all electrically connected to the signal processing unit. The signal processing unit is used to process the radio frequency signals output by multiple transceiver front-end components and receiving front-end components using an AI algorithm model to generate corresponding interference signals. These interference signals are then sent to the broadband antenna 3 through multiple transceiver front-end components, achieving the purpose of AI-enabled acceleration and thereby improving the interference capability of this electronic countermeasures system against target drones. in addition, Figure 1 The dimensional parameters are in millimeters.

[0024] Example 2 As one example, such as Figures 3-4As shown, the transceiver front-end assembly includes a first front-end switching network, a receiving front-end channel, a power amplifier, and a self-test source. The signal transceiver end of the first front-end switching network is electrically connected to the corresponding broadband antenna 3. The output end of the first front-end switching network is electrically connected to the receiving front-end channel. The output end of the receiving front-end channel is electrically connected to the signal processing unit. The receiving end of the power amplifier is electrically connected to the signal processing unit. The output end of the power amplifier is electrically connected to the first input end of the first front-end switching network. The second input end of the first front-end switching network is electrically connected to the self-test source. The first front-end switching network controls the signal flow, switching between three operating modes: receive, transmit, and self-test. The receiving front-end channel amplifies, filters, and adjusts the amplitude of the weak radio frequency signal received by the antenna and safely sends it to the back-end. The power amplifier amplifies the weak interference signal generated by the signal processing unit to sufficient power to effectively radiate the interference target. The self-test source generates a known, standard calibration signal to verify whether the entire receiving channel from the antenna to the back-end is working properly. Through the close cooperation of these four components, the transmit / receive switching and self-diagnostic functions of the transceiver front-end components are realized.

[0025] Specifically, the first front-end switch network includes two single-pole double-throw switches. The signal transceiver terminal of the first single-pole double-throw switch is electrically connected to the corresponding broadband antenna 3. The input terminal of the first single-pole double-throw switch is electrically connected to the output terminal of the power amplifier. The output terminal of the first single-pole double-throw switch is electrically connected to the second single-pole double-throw switch. The input terminal of the second single-pole double-throw switch is electrically connected to the self-test source, and the output terminal of the second single-pole double-throw switch is electrically connected to the receiving front-end channel; The first single-pole double-throw switch is responsible for switching between transmit and receive signals, and the second single-pole double-throw switch is responsible for switching the channel self-test signal.

[0026] In addition, the power amplifier includes an amplification unit and a feedback unit. The amplification unit includes a first amplifier, a filter, a second amplifier, a first digitally controlled attenuator, a third amplifier, and a first coupler connected in series. The input terminal of the first amplifier is electrically connected to the signal processing unit, and the first output terminal of the first coupler is electrically connected to the first input terminal of the first front-end switching network. The connections of the remaining devices are as follows: the output terminal of the first amplifier is electrically connected to the filter, the output terminal of the filter is electrically connected to the second amplifier, the output terminal of the second amplifier is electrically connected to the first digitally controlled attenuator, the output terminal of the first digitally controlled attenuator is electrically connected to the third amplifier, and the output terminal of the third amplifier is electrically connected to the first coupler. It should be noted that the power amplifier receives the interference signal output by the signal processing unit, which will be transmitted through the broadband antenna 3. In addition, the filter is used to make the interference signal cleaner, the first digitally controlled attenuator is responsible for amplitude conditioning, the first coupler is responsible for signal coupling, and the amplifiers at each stage amplify the interference signal in stages to ensure the stability of the amplification process. The feedback unit includes a detector and a data acquisition and control power supply circuit connected in series; wherein the input terminal of the detector is electrically connected to the second output terminal of the first coupler, and the output terminal of the data acquisition and control power supply circuit is electrically connected to the signal processing unit. Furthermore, the detector is responsible for converting the coupled radio frequency signal into an analog signal; the acquisition and control circuit is mainly responsible for functions such as detector signal detection, standing wave protection, output power detection, power supply conversion, and external communication.

[0027] As needed, the receiving front-end component includes a single-pole double-throw switch, a receiving front-end channel, and a self-test source. The first input terminal of the single-pole double-throw switch is electrically connected to the reference omnidirectional antenna 4, the second input terminal of the single-pole double-throw switch is electrically connected to the self-test source, and the output terminal of the single-pole double-throw switch is electrically connected to the receiving front-end channel. This single-pole double-throw switch is responsible for switching the channel self-test signal and has the same function as the second single-pole double-throw switch in the transceiver front-end component. The functions of the receiving front-end channel and the self-test source are also the same as the functions of the corresponding devices in the transceiver front-end component.

[0028] Furthermore, the receiving front-end channel includes a second coupler, a bypass circuit, a second digitally controlled attenuator, a switching filter group, and a fourth amplifier connected in series. The input terminal of the second coupler is electrically connected to the output terminal of the corresponding single-pole double-throw switch, and the output terminal of the fourth amplifier is electrically connected to the signal processing unit. The connections of the remaining devices are as follows: the output terminal of the second coupler is electrically connected to the bypass circuit, the output terminal of the bypass circuit is electrically connected to the second digitally controlled attenuator, the output terminal of the second digitally controlled attenuator is electrically connected to the switching filter group, and the output terminal of the switching filter group is electrically connected to the fourth amplifier. In addition, the second coupler is responsible for protecting the input large signal, the bypass circuit is responsible for switching the working mode. When the bypass circuit is in the amplification mode, it is in low noise mode, and when the bypass circuit is in the attenuation mode, it is in low distortion mode. The digitally controlled attenuator and amplifier are responsible for signal amplitude adjustment; the switching filter group is responsible for signal harmonic suppression.

[0029] Example 3 As one example, such as Figures 5-8 As shown, the signal processing unit includes a backplane, and signal conditioning boards, signal processing boards, DRFM boards, synchronization clock boards, industrial computers, and power modules that are electrically connected to the backplane. In addition, signal conditioning boards, signal processing boards, DRFM boards, synchronous clock boards, industrial control computers and power modules are all plugged into the backplane. The backplane provides a relay path for power supply and control signals for each board. The introduction of the backplane can achieve a high degree of decoupling of the internal boards, enabling each board to support modular and pluggable designs, making the later maintenance and repair of the product more efficient. The synchronization clock board is used to generate accurate and stable clock reference signals, which are then sent to other boards and multiple transceiver front-end components; such as Figure 7 As shown, the synchronous clock board mainly includes a synchronous crystal oscillator circuit and a power divider network. The synchronous crystal oscillator circuit realizes external reference synchronization, while the power divider network divides the synchronous crystal oscillator circuit into 8 channels to provide reference signals for the transceiver front-end components, receiver front-end components, DRFM board, signal conditioning board, and signal processing board. The signal conditioning board is used to receive multiple transceiver front-end components and the radio frequency signals output by the receiving front-end components, and to amplify, filter, and frequency-convert them into intermediate frequency signals or direct-through radio frequency signals; such as Figure 6 As shown, the signal conditioning board mainly consists of 6 receiving channels and 1 local oscillator circuit. After the external signal enters the signal conditioning board, it is divided into two paths according to the input frequency. Signals from 0.3 to 2.3 GHz enter the direct path, where they are filtered and amplitude conditioned before entering the DRFM board for acquisition and processing. Signals from 2 to 6 GHz enter the frequency conversion path, undergo two stages of downconversion to generate an intermediate frequency signal of 1.8 GHz, which is then filtered and amplitude conditioned before entering the DRFM board for acquisition and processing. The local oscillator circuit is responsible for generating the local oscillator signal. The DRFM board performs high-speed digital acquisition and storage of intermediate frequency or radio frequency signals from the signal conditioning board, and reconstructs and generates interference digital signals based on interference commands output by the industrial control computer. These interference digital signals are then converted by the DAC module and output to multiple transceiver front-end components. Figure 5 As shown, the DRFM board is mainly composed of an RFSOC chip, equipped with DDR4 memory, FLSH memory, and rich peripheral interfaces, supporting GPIO, PCIe, 10 Gigabit Ethernet / optical port and other communications; the RFSOC chip is a system-on-a-chip, integrating a high-speed analog-to-digital converter unit, a digital-to-analog converter unit, a programmable logic unit, a digital signal processing unit, a memory unit, a power supply unit, etc. on a single chip, which can support the direct acquisition, processing and signal reconstruction generation of radio frequency signals of not less than 2GHz; The signal processing board receives digital signal data from the DRFM board via a backplane, performs real-time direction-finding signal processing and interference waveform generation, and transmits the direction-finding signal and interference waveform externally; for example Figure 8As shown, the signal processing board is mainly composed of FPGA circuits. This FPGA has high performance and can perform functions such as direction finding signal processing, interference signal reconstruction, and external data transmission. The industrial control computer is used to receive direction-finding signals and interference waveforms from the signal processing board, as well as digital signal data from the DRFM board, and to generate interference commands using an AI algorithm model. The power module provides power to each board through the backplane.

[0030] Furthermore, the AI ​​algorithm model includes a perception layer, a decision layer, and an execution layer. The perception layer performs a short-time Fourier transform on the digital signal data sent from the DRFM board to generate a time-spectrum graph, and uses a convolutional neural network to process the time-spectrum graph to obtain structured state information related to the direction-finding signal. That is, the perception layer mainly judges the threat level of the target UAV based on the digital information data received in real time. The decision layer can generate various types of interference signals based on the interference waveform. First, the decision layer has a pre-designed database containing various interference strategies. Then, the decision layer converts the interference waveform generated by the signal processing board into interference signals of the corresponding interference strategies. The execution layer can match the structured state information of the direction finding signal with various interference signals to obtain the optimal interference signal; the execution layer is used to determine which interference signal can have the best interference effect on which type of target UAV, thereby obtaining the optimal interference signal.

[0031] As needed, the DRFM board includes an RFSOC chip, a DAC module, DDR4 memory, and FLSH memory. The RFSOC chip is used to perform high-speed digital acquisition of intermediate frequency or radio frequency signals from the signal conditioning board, and to reconstruct and generate interference digital signals according to the interference instructions output by the industrial control computer. The interference digital signal is converted by the DAC module and then output to multiple transceiver front-end components; The DDR4 memory and FLSH memory are used to store digitized signal data.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A portable multifunctional AI-enabled electronic countermeasure system, characterized in that, The utility model relates to a kind of wideband antenna interference signal generation device, including host shell (1), the bottom of host shell (1) is equipped with tripod (2), the surface of host shell (1) is equipped with multiple wideband antennas (3) and a reference omnidirectional antenna (4); A plurality of transceiver front-end components, a receiving front-end component and a signal processing unit are arranged in the host shell (1), wherein the plurality of transceiver front-end components and the plurality of wideband antennas (3) are electrically connected one by one, the reference omnidirectional antenna (4) is electrically connected with the receiving front-end component, and the plurality of transceiver front-end components and the receiving front-end component are electrically connected with the signal processing unit; The signal processing unit is configured to process the radio frequency signals output by the plurality of transceiver front-end components and the receiving front-end component using an AI algorithm model to generate corresponding interference signals, and the interference signals are transmitted to the wideband antennas (3) through the plurality of transceiver front-end components.

2. The portable multi-functional Al-enabled electronic countermeasure system of claim 1, wherein: The number of the wideband antennas (3) and the transceiver front-end components is 5, and the 5 wideband antennas (3) are uniformly installed around the side surface of the host shell (1), and the reference omnidirectional antenna (4) is installed on the top of the host shell (1).

3. The portable multi-functional Al-enabled electronic countermeasure system of claim 1, wherein: The transceiver front-end component includes a first front-end switch network, a receiving front-end channel, a power amplifier and a self-checking source, the signal transceiver end of the first front-end switch network is electrically connected with the corresponding wideband antenna (3), the output end of the first front-end switch network is electrically connected with the receiving front-end channel, the output end of the receiving front-end channel is electrically connected with the signal processing unit, the receiving end of the power amplifier is electrically connected with the signal processing unit, the output end of the power amplifier is electrically connected with the first input end of the first front-end switch network, and the second input end of the first front-end switch network is electrically connected with the self-checking source.

4. The portable multi-functional Al-enabled electronic countermeasure system of claim 3, wherein: The first front-end switch network includes two single-pole double-throw switches, the signal transceiver end of the first single-pole double-throw switch is electrically connected with the corresponding wideband antenna (3), the input end of the first single-pole double-throw switch is electrically connected with the output end of the power amplifier, and the output end of the first single-pole double-throw switch is electrically connected with the second single-pole double-throw switch. The input end of the second single-pole double-throw switch is electrically connected with the self-checking source, and the output end of the second single-pole double-throw switch is electrically connected with the receiving front-end channel.

5. The portable multi-functional Al-enabled electronic countermeasure system of claim 3, wherein: The power amplifier includes an amplification unit and a feedback unit, wherein the amplification unit includes a first amplifier, a filter, a second amplifier, a first digital control attenuator, a third amplifier and a first coupler connected in series, wherein the input end of the first amplifier is electrically connected with the signal processing unit, and the first output end of the first coupler is electrically connected with the first input end of the first front-end switch network. The feedback unit includes a detector and a collection control power supply circuit connected in series, wherein the input end of the detector is electrically connected with the second output end of the first coupler, and the output end of the collection control power supply circuit is electrically connected with the signal processing unit.

6. The portable multi-functional Al-enabled electronic countermeasure system of claim 3, wherein: The receiving front-end component includes a single-pole double-throw switch, a receiving front-end channel and a self-checking source, wherein the first input end of the single-pole double-throw switch is electrically connected with the reference omnidirectional antenna (4), the second input end of the single-pole double-throw switch is electrically connected with the self-checking source, and the output end of the single-pole double-throw switch is electrically connected with the receiving front-end channel.

7. The portable multi-functional Al-enabled electronic countermeasure system of claim 6, wherein: The receiving front-end channel comprises a second coupler, a bypass circuit, a second digital control attenuator, a switch filter group and a fourth amplifier connected in series, wherein the input end of the second coupler is electrically connected with the output end of the corresponding single-pole double-throw switch, and the output end of the fourth amplifier is electrically connected with the signal processing unit.

8. The portable multi-functional Al-enabled electronic countermeasure system of claim 1, wherein: The signal processing unit comprises a backboard, and a signal conditioning board card, a signal processing board card, a DRFM board card, a synchronous clock board card, an industrial computer and a power module electrically connected with the backboard. The synchronous clock board card is used to generate a precise and stable clock reference signal and send it to other board cards and the plurality of transceiver front-end components. The signal conditioning board card is used to receive the radio frequency signals output by the plurality of transceiver front-end components and the receiving front-end channel, and convert the radio frequency signals into intermediate frequency signals after amplification, filtering and frequency conversion, or directly pass through the radio frequency signals. The DRFM board card is used to perform high-speed digitization acquisition and storage on the intermediate frequency or radio frequency signals from the signal conditioning board card, and reconstruct and generate interference digital signals according to the interference instructions output by the industrial computer, wherein the interference digital signals are converted by a DAC module and output to the plurality of transceiver front-end components. The signal processing board card receives the digitized signal data from the DRFM board card through the backboard, and performs real-time direction finding signal processing and interference waveform generation, and transmits the direction finding signal and the interference waveform to the outside. The industrial computer is used to receive the direction finding signal and the interference waveform from the signal processing board card, and the digitized signal data from the DRFM board card, and generate interference instructions by using an AI algorithm model. The power module provides power for each board card through the backboard.

9. The portable multi-functional Al-enabled electronic countermeasure system of claim 8, wherein: The AI algorithm model comprises a perception layer, a decision layer and an execution layer, wherein the perception layer performs short-time Fourier transform on the digitized signal data sent by the DRFM board card to generate a time-frequency spectrum, and uses a convolutional neural network to process the time-frequency spectrum to obtain structured state information of the direction finding signal. The decision layer can generate multiple types of interference signals according to the interference waveform. The execution layer can match the structured state information of the direction finding signal and the multiple interference signals to obtain the optimal interference signal.

10. The portable multi-functional Al-enabled electronic countermeasure system of claim 8, wherein: The DRFM board card comprises an RFSOC chip, a DAC module, a DDR4 storage and a FLSH storage, wherein the RFSOC chip is used to perform high-speed digitization acquisition on the intermediate frequency or radio frequency signals from the signal conditioning board card, and reconstruct and generate interference digital signals according to the interference instructions output by the industrial computer. The interference digital signals are converted by the DAC module and output to the plurality of transceiver front-end components. The DDR4 storage and the FLSH storage are used to store the digitized signal data.

Images