A cooperative jamming method based on multiple distributed jammers

Abstract

The present application provides a collaborative interference method based on multiple distributed jammers, which relates to the field of wireless technology. The method includes: determining a first jammer and multiple second jammers from the selected jammers according to the distance relationship between the jammers to be selected and the target receiver, determining an interference auxiliary zone according to the relative azimuth and distance between the first jammer and the target receiver, and determining a third jammer from multiple second jammers according to the spatial coverage complementarity and interference coordination with the interference auxiliary zone, constructing a first interference zone according to the first jammer and the third jammer, and performing main lobe suppression interference on the target receiver in the first interference zone through the first transmit beam, obtaining the perception information of the first interference zone on the target receiver, constructing a second interference zone according to the perception information and the second jammer, and performing sub-lobe suppression interference on the target receiver in the second interference zone through the second transmit beam. This application aims to improve the problem that the existing method has weak interference capability in complex scenarios.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless technology, and in particular to a collaborative interference method based on multiple distributed jammers. Background Art

[0002] A jammer is an electronic device whose primary function is to disrupt, block, or otherwise interfere with the normal operation of other electronic systems by emitting specific electromagnetic signals. It can affect the transmission or reception of signals for communication, positioning, detection, and other purposes, thereby providing protection, control, or testing. Jammers are often used in scenarios requiring management or protection of specific frequency bands. They automatically identify target signals and apply appropriate jamming strategies, effectively improving system stability and anti-interference capabilities.

[0003] Traditional interference methods mainly use a single interference device for operation. Its interference effect and coverage are limited by the device performance and deployment method. It is difficult to achieve dynamic control and efficient interference effects when faced with complex situations such as multiple signals and multiple environmental changes. Summary of the Invention

[0004] The embodiment of the present application provides a collaborative jamming method based on multiple distributed jammers. The embodiment of the present application adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a collaborative jamming method based on multiple distributed jammers, the method comprising: determining a first jammer and multiple second jammers from the candidate jammers based on a distance relationship between the candidate jammers and a target receiver;

[0006] determining an interference auxiliary zone according to the relative azimuth and distance between the first jammer and the target receiver, and determining a third jammer from the plurality of second jammers according to spatial coverage complementarity and interference coordination with the interference auxiliary zone;

[0007] A first interference zone is established according to the first jammer and the third jammer, and a main lobe suppression interference is performed on a target receiver in the first interference zone through a first transmit beam, where the first transmit beam is a continuous transmit beam;

[0008] Acquiring perception information of the first interference area to the target receiver;

[0009] A second interference zone is constructed based on the perception information and the second jammer, and lobe suppression interference is performed on the target receiver through a second transmission beam in the second interference zone, where the second transmission beam is a pulse transmission beam.

[0010] In a possible implementation of the first aspect, determining a first jammer and a plurality of second jammers from the candidate jammers based on a distance relationship between the candidate jammers and a target receiver includes:

[0011] Determine the interference coverage of the candidate jammer to the target receiver based on the distance relationship between the candidate jammer and the target receiver;

[0012] When the interference coverage rate is greater than or equal to a preset threshold, determining the candidate jammer as the first jammer;

[0013] When the interference coverage is less than a preset threshold, the jammer with the largest interference coverage among the candidate jammers is determined as the first jammer, and the non-first jammer among the candidate jammers is determined as the second jammer.

[0014] In a possible implementation of the first aspect, determining the interference auxiliary zone according to the relative azimuth and distance between the first jammer and the target receiver includes:

[0015] Determining the main axis direction of the jamming auxiliary zone according to the relative azimuth angle between the first jammer and the target receiver;

[0016] Determining the effective interference radius of the interference auxiliary zone according to the distance between the first jammer and the target receiver;

[0017] With the main axis direction as the central axis and the interference effective radius as the reference radius, an interference auxiliary area is constructed.

[0018] In a possible implementation of the first aspect, it is characterized in that determining the third jammer from the plurality of second jammers according to the spatial coverage complementarity and interference effectiveness coordination with the interference auxiliary zone includes:

[0019] Determining a spatial coverage overlap rate between each second jammer and the interference auxiliary zone, and determining a first screening score based on the spatial coverage overlap rate;

[0020] determining a matching degree of interference parameters between each second jammer and the first jammer, and determining a second screening score based on the matching degree of interference parameters;

[0021] The comprehensive evaluation score of each second jammer is determined according to the first screening score and the second screening score, and the second jammer with the largest comprehensive evaluation score is determined as the third jammer. Each interference auxiliary area corresponds to one third jammer.

[0022] In a possible implementation of the first aspect, establishing a first interference zone according to the first jammer and the third jammer includes:

[0023] Using the first jammer main jamming node, a core jamming area targeting the main lobe direction of the target receiver is constructed;

[0024] Using the third jammer as an auxiliary jamming node, a compensating jamming zone is established in the weak signal area of the core jamming zone;

[0025] The beam control parameters and transmission power configuration parameters of the first jammer and the third jammer are determined according to the spatial distribution relationship between the core interference area and the compensation interference area.

[0026] In a possible implementation of the first aspect, obtaining perception information of the first interference area to the target receiver includes:

[0027] obtaining feedback response characteristics of a target receiver monitored by the first jammer and the third jammer;

[0028] determining a dynamic anti-interference behavior characteristic of the target receiver in the first interference area according to the feedback response characteristic;

[0029] The dynamic anti-interference behavior characteristics are pattern matched with the pre-built target receiver anti-interference feature library to determine the perception information.

[0030] In a possible implementation of the first aspect, the second interference area and the first interference area have an overlapping area, and the coverage degree of the overlapping area is positively correlated with the anti-interference capability of the target receiver.

[0031] In a possible implementation of the first aspect, the method also includes: obtaining the anti-interference response characteristics of the target receiver to the first interference area and the second interference area, and dynamically adjusting the main lobe interference parameters of the first interference area and the distributed interference strategy of the second interference area according to the anti-interference response characteristics.

[0032] In a possible implementation of the first aspect, the method further includes: the first jammer sends a matching code to the third jammer and the second jammer in the second interference zone; the first jammer and the third jammer generate a first transmit beam based on the matching code; and the second jammer in the second interference zone generates a second transmit beam based on the matching code.

[0033] In a second aspect, the present application also provides an electronic device, which includes: a memory and one or more processors, and the memory is coupled to the processor; wherein computer program code is stored in the memory, and the computer program code includes computer instructions, and when the computer instructions are executed by the processor, the electronic device executes the method in any possible design mode of the above-mentioned first aspect.

[0034] In a third aspect, the present application provides a computer-readable storage medium comprising computer instructions; when the computer instructions are executed on an electronic device, the electronic device executes the method as described in the first aspect and any possible design thereof.

[0035] In a fourth aspect, the present application provides a computer program product. When the computer program product is run on an electronic device, the electronic device executes the method in the first aspect and any possible design thereof.

[0036] The present application provides a collaborative interference method based on multiple distributed jammers. By introducing multiple jamming devices for collaborative operation, it solves the natural disadvantages of single-point deployment in interference range, direction control and power distribution. By comprehensively considering the relative position, spatial complementarity, and target dynamic characteristics between the jamming nodes, a main-auxiliary combined interference layout is constructed, which not only improves the spatial integrity of the interference area, but also significantly enhances the suppression effect on high-immunity targets. At the same time, the system has certain perception and feedback capabilities, which can perceive changes in target reception behavior in real time and dynamically adjust the jamming strategy accordingly, so that the jamming mode is no longer passively executed, but has certain intelligent judgment and adaptive capabilities, and can maintain an efficient suppression state in a complex and changeable communication environment. In addition, by reasonably distinguishing between continuous transmission and pulse interference in the interference timing, the system's anti-frequency hopping capability and power utilization efficiency are effectively improved, thereby constructing a jamming system with fast response, spatial integrity, strong suppression, and flexible strategy. While improving system stability and robustness, this method also lays the foundation for the development of future multi-node intelligent jamming systems.

[0037] Among them, the technical effects of the second to fourth aspects refer to the technical effects of the first aspect and any of its embodiments, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the steps of a collaborative jamming method based on multiple distributed jammers provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the positional relationship between a target receiver and a jammer provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the positional relationship between another target receiver and jammer provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and claims of the present application, the singular expressions "a", "a", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the following embodiments of the present application, "at least one", "one or more" refer to one or more (including two). The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0042] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0043] In the following, the terms "first," "second," etc., are used for descriptive convenience only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more. For example, "plurality of processing units" refers to two or more processing units.

[0044] Furthermore, in the embodiments of the present application, "upper," "lower," "left," and "right" are not limited to being defined relative to the orientation of the components schematically shown in the drawings. It should be understood that these directional terms can be relative concepts. They are used for relative description and clarification, and may change accordingly based on changes in the orientation of the components in the drawings. In the drawings, the thickness of layers and regions is exaggerated for clarity, and the dimensional ratios between the components in the drawings do not reflect the actual dimensional ratios.

[0045] In the embodiments of this application, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean direct connection or indirect connection through an intermediate medium. In addition, the term "electrical connection" can mean direct electrical connection or indirect electrical connection through an intermediate medium.

[0046] In the embodiments of the present application, the term "module" generally refers to a functional structure divided according to logic. The "module" can be implemented by pure hardware or a combination of hardware and software. In the embodiments of the present application, "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, B exists alone, and A and B exist at the same time.

[0047] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0048] A jammer is an electronic device with electromagnetic interference capabilities. It intentionally interferes with, blocks, or suppresses other electronic systems by emitting electromagnetic signals of specific frequency, power, and modulation. The basic principle is to introduce interference signals stronger than the intended signal into the target system's receiving path, preventing it from properly demodulating or acquiring valid information. Jammers are widely used in scenarios such as communications countermeasures, spectrum management, signal suppression, security protection, and electronic testing. They can disrupt or suppress various electronic signals, including those from communication links, positioning systems, and radar detection, thereby achieving information protection, mission blocking, electronic deception, or system evaluation.

[0049] However, most traditional interference methods rely on a single interference device for fixed-point deployment and operation. The interference effect is limited by the device's power, coverage radius, spectrum capability and deployment angle. It is difficult to effectively cope with the concurrent interference needs of multiple signal sources and multiple targets, and it is unable to quickly respond to the dynamic changes in the signal environment and the challenges brought by the frequent frequency hopping or maneuvering of the target receiver. At the same time, there are also problems such as local area interference coverage blind spots or attenuation of interference capabilities. In addition, the single-device system has low redundancy and poor anti-destruction capability, making it difficult to build an interference system with high robustness and dynamic control capabilities.

[0050] Based on this, the inventive concept of this application is proposed: through information sharing and functional collaboration among multiple distributed jammers, a multi-level interference area that combines main and auxiliary and is dynamically reconstructed is constructed, which can flexibly adjust the interference strategy and beam parameters according to the spatial position, behavioral characteristics and signal response of the target receiver, to achieve high-precision and high-efficiency adaptive collaborative interference, and effectively improve the response speed, interference effect and system robustness of the jamming system in complex environments.

[0051] Reference Figure 1 The embodiment of the present invention provides a collaborative jamming method based on multiple distributed jammers, which is applied to a host computer and may specifically include the following steps:

[0052] S101: Determine a first jammer and a plurality of second jammers from the candidate jammers according to a distance relationship between the candidate jammers and a target receiver.

[0053] In this embodiment, the jammers to be selected refer to a plurality of jammers deployed in the test area, having jamming capabilities and capable of participating in collaborative work. These jammers have completed initialization configuration in advance, have beam control, signal transmission and a certain degree of information perception capabilities, and are on standby or dispatchable. The target receiver may refer to the receiving end of electronic equipment such as communication, navigation or radar that needs to be interfered with, has detectable signal characteristics, and has clear physical location information or an estimable location range in space. By obtaining the spatial distance information between the jammer to be selected and the target receiver, and combining the performance parameters and deployment location of the jammer, a jammer that is closer to the target and has the main jamming capability is selected as the first jammer, and at the same time, multiple jammers that can collaboratively participate in auxiliary jamming tasks are selected as the second jammer, providing basic conditions for the subsequent construction of a multi-level interference area. The specific steps may include:

[0054] S1011: Determine the interference coverage of the candidate jammer to the target receiver based on the distance relationship between the candidate jammer and the target receiver;

[0055] S1012: When the interference coverage rate is greater than or equal to a preset threshold, determine the candidate jammer as the first jammer;

[0056] S1013: When the interference coverage is less than a preset threshold, determine the jammer with the maximum interference coverage among the candidate jammers as the first jammer, and determine the non-first jammer among the candidate jammers as the second jammer.

[0057] In the implementation of S1011 to S1013, the interference coverage rate can refer to the proportion of the area where the target receiver is located that is covered by the effective interference signal of the jammer, which can be used to quantify the actual interference capability of each jammer on the target receiver. As an example, the spatial position information of the target receiver is obtained, which can be obtained through external detection systems, historical trajectory prediction or signal direction finding, etc., to form a spatial description of the current or predicted position of the target receiver. On this basis, the system combines factors such as the power coverage range, transmission directivity, beam controllability and environmental propagation loss of each candidate jammer. The power coverage range refers to the effective area in space where the interference signal of the jammer reaches the effective interference threshold under a specific frequency band and transmission power; the transmission directivity reflects the gain characteristics of the jammer antenna and determines the distribution of the interference signal in different spatial directions; the beam controllability indicates whether the jammer supports beamforming or adjusts the transmission direction to flexibly focus the interference signal; the environmental propagation loss takes into account the effects of obstacles, multipath effects and atmospheric attenuation during signal propagation. Through ray propagation modeling and signal path loss analysis, the effective interference area formed by each jammer at the spatial location of the target receiver is calculated, that is, the area where the interference signal strength exceeds the anti-interference threshold of the target receiver.

[0058] After determining the target receiver, if there is a candidate jammer whose interference coverage rate to the target receiver is greater than or equal to a preset threshold, the candidate jammer can be directly selected to jam the target receiver without the need to coordinate with other jammers. Figure 2 As shown in the figure, there is a target receiver D in the test area, and the interference coverage of jammer A on the target receiver D is greater than or equal to the preset threshold. Therefore, the system only needs to dispatch jammer A to effectively interfere with the target receiver D. Jammers B and C do not need to participate in this interference task because their interference coverage does not meet the standard, which effectively saves resources and avoids interference conflicts.

[0059] If no jammer has an interference coverage rate greater than or equal to the preset threshold for the target receiver, it means that the current single jammer cannot form effective interference of sufficient intensity on the target receiver, and it is difficult to achieve the expected interference suppression effect. Therefore, it is necessary to adopt a coordinated cooperation method of multiple jammers to comprehensively improve the interference coverage capability.

[0060] For example, see Figure 3 As shown in the figure, there is a target receiver D in the test area. The interference coverage of jammers A, B, and C on the target receiver D is less than the preset threshold. Among them, the interference coverage of jammer C is relatively the highest. Therefore, the system can determine jammer C as the first jammer to undertake the main jamming task, and at the same time determine jammers A and B as the second jammers to assist in building a joint jamming area.

[0061] S102: Determine an interference auxiliary zone according to the relative azimuth and distance between the first jammer and the target receiver, and determine a third jammer from a plurality of second jammers according to spatial coverage complementarity and interference coordination with the interference auxiliary zone.

[0062] In this embodiment, spatial coverage complementarity means that the interference range of the third jammer can cover the spatial blind area that is not effectively covered by the first jammer in the interference auxiliary area, and the interference effectiveness synergy means that the interference parameters of the third jammer and the interference parameters of the first jammer form a collaborative interference gain that exceeds a preset threshold. First, based on the relative spatial relationship between the first jammer and the target receiver, especially the azimuth and distance between the two, the main interference area that can be formed by the first jammer on the target receiver is evaluated. Under ideal conditions, the first jammer is mainly responsible for implementing strong interference in the main lobe direction of the target receiver, but due to factors such as environmental shielding, beam limitation or distance attenuation, the first jammer may have interference signal coverage blind spots or spatial areas with insufficient interference intensity in certain directions or angles. This part of the area is the interference auxiliary area.

[0063] The determination of the interference auxiliary zone is mainly to identify the location where the first jammer has insufficient interference coverage, thereby providing a basis for subsequent multi-machine coordinated interference. Subsequently, the system evaluates the spatial compensation capability of multiple second jammers for the interference auxiliary zone, that is, whether each jammer can effectively compensate for the interference blind spot of the first jammer in space under the influence of factors such as its beam capability, directivity, distance, and environmental adaptability. In addition, the system also evaluates the degree of interference coordination between it and the first jammer, that is, whether the jammer has the ability to synchronize transmission, power adjustment, frequency coordination, and time domain collaboration with the first jammer, to ensure that multiple jammers will not interfere with each other or generate interference interference when working together, thereby achieving interference superposition and suppression enhancement.

[0064] On this basis, the system selects the jammer that is most suitable for compensating the auxiliary jamming zone from multiple second jammers and determines it as the third jammer. It will work together with the first jammer to build a coordinated jamming zone, improving the overall jamming effectiveness against the target receiver. The purpose of determining the third jammer is to build a more robust mainlobe suppression system through multi-point coordinated jamming. In complex electromagnetic environments or when the target receiver has anti-jamming behaviors such as maneuvering and frequency hopping, it maintains efficient and continuous jamming capabilities to ensure the reliable execution of the jamming mission.

[0065] The step of determining the interference auxiliary area may include:

[0066] S1021: Determine the main axis direction of the interference auxiliary zone according to the relative azimuth angle between the first jammer and the target receiver;

[0067] S1022: Determine an effective interference radius of the interference auxiliary zone according to the distance between the first jammer and the target receiver;

[0068] S1023: Construct an interference auxiliary area with the main axis direction as the central axis and the interference effective radius as the reference radius.

[0069] In the implementation of S1021 to S1023, first, based on the relative azimuth between the first jammer and the target receiver, that is, the direction from the first jammer to the target receiver, the main axis direction of the interference auxiliary zone is determined. This direction represents the main direction of the propagation path of the first interference signal and also serves as the central reference axis for the construction of the auxiliary zone, used to guide the subsequent construction of the regional shape and spatial positioning. Secondly, based on the distance relationship between the first jammer and the target receiver, the effective range of the interference signal in the target direction is estimated by comprehensively considering the first jammer's transmit power, antenna directivity gain, signal attenuation model, and environmental factors (such as terrain obstruction and multipath effects). Thus, an effective interference radius is determined. This radius can be regarded as the maximum distance at which the first jammer can maintain the interference intensity at an effective suppression threshold in the current direction. Beyond this distance, the interference capability will be significantly reduced, making it difficult to generate sustained and effective interference on the target receiver. Finally, the determined main axis direction is used as the construction reference, and this direction is regarded as the central axis of the interference auxiliary zone. At the same time, based on the effective interference radius, a spatial area of a specific shape is extended on this axis, usually an elliptical, fan-shaped or directional hemispherical area, to form an interference auxiliary zone. This area is used to identify the location where the first jammer has insufficient interference capability or significant signal attenuation during the main lobe suppression process. For example, if the first jammer is located at the origin of the coordinate system and the target receiver is located 1500 meters northeast, the main axis direction is northeast. If the calculated effective interference radius is 1000 meters, the auxiliary zone may be a fan-shaped area with the northeast as the central axis and a radius of 1000 meters. This area is the interference auxiliary space that requires other jammers to compensate. Through the above steps, the system can accurately identify the location where the first jammer has insufficient interference capability, and provide a clear and quantitative reference basis for the subsequent selection of a third jammer with spatial coverage complementarity and interference synergy, thereby building an interference system with dynamic control and multi-source coordination capabilities.

[0070] The step of determining the third jammer may include:

[0071] S1024: Determine the spatial coverage overlap rate between each second jammer and the interference auxiliary zone, and determine a first screening score based on the spatial coverage overlap rate;

[0072] S1025: Determine the interference parameter matching degree between each second jammer and the first jammer, and determine a second screening score based on the interference parameter matching degree;

[0073] S1026: Determine the comprehensive evaluation score of each second jammer according to the first screening score and the second screening score, determine the second jammer with the largest comprehensive evaluation score as the third jammer, and each interference auxiliary zone corresponds to one third jammer.

[0074] In the implementation of S1024 to S1026, by quantitatively evaluating the two dimensions of spatial position adaptability and interference capability synergy of each second jammer, the optimal cooperative interference node, i.e., the third jammer, is selected to cooperate with the first jammer to jointly build a stable and effective main lobe suppression interference system. Specifically, it is first necessary to evaluate the geometric coverage between each second jammer in terms of spatial position and the constructed interference auxiliary zone, which is also known as the spatial coverage overlap rate. This indicator is used to measure whether the interference signal of the second jammer can effectively act on the auxiliary zone in space. If the overlap ratio between the beam coverage range of a second jammer and the interference auxiliary zone is high, it means that it has good compensation potential in terms of geometric position, thereby giving it a higher first screening score. Then, on the basis of completing the spatial position matching, the synergy between each second jammer and the first jammer in terms of interference parameters is further evaluated. These parameters include but are not limited to transmission frequency, beam width, power level, signal modulation mode, beam pointing control capability, and time synchronization capability, etc., to determine whether the two jammers can achieve consistent interference output at the physical layer and signal level. The higher the matching degree of the interference parameters, the easier it is for the two sides to achieve coordinated transmission and synchronous suppression, and the stronger the interference effect. Therefore, the second screening score is determined based on the matching degree. Finally, the scores of spatial coverage capability and interference parameter coordination are combined to form a comprehensive evaluation score, which is used to comprehensively measure the potential of the second jammer as a third jammer. After calculating the comprehensive evaluation scores of all candidate second jammers, the system selects the one with the highest score as the third jammer corresponding to the interference auxiliary area, that is, the optimal coordination node. For example, if there are second jammers A, B, and C in a certain auxiliary area, among which B's beam coverage overlaps with the auxiliary area by 85%, and its frequency and timing match with the first jammer is higher than the other two, then its comprehensive evaluation score is the highest and it is determined to be the third jammer in the area. Through this evaluation mechanism, the third jammer that fits spatially and matches in capability can be accurately screened from the candidate second jammers.

[0075] S103: Construct a first interference zone according to the first jammer and the third jammer, and perform main lobe suppression interference on the target receiver through the first transmit beam in the first interference zone.

[0076] In this embodiment, during the construction of the first interference zone and the implementation of mainlobe suppression interference, the first jammer, acting as the master control node, establishes a three-dimensional conical core interference zone centered on the target mainlobe direction based on the precise detection results of the target receiver's mainlobe direction (which may include azimuth angle α and elevation angle β), combined with its own antenna beamwidth θ and transmit power P. The third jammer, acting as an auxiliary node, is distributedly deployed outside the core interference zone and employs adaptive beamforming technology to fill signal weak areas caused by terrain obstruction or mainlobe beam edge attenuation. The construction of its compensation interference zone must ensure continuous coverage after superposition with the core zone field strength. For example, in an urban environment, when the core zone has a 30% coverage gap due to building obstruction, the third jammer must complete the direction adjustment and power matching of the compensation beam within 300ms. The main lobe suppression interference is achieved through the first transmitting beam, which adopts a continuous wave interference pattern with polarization matching the target main lobe. The center frequency is precisely aligned with the target operating frequency, and the interference effectiveness is maintained through closed-loop power control. When it is detected that the target receiver adopts power boost to resist interference, the first jammer can increase the transmission power from 50W to 200W in a step-by-step manner within 100ms. At the same time, the third jammer synchronously adjusts the modulation mode of the compensation beam, for example, switching from pure noise interference to coherent forwarding interference, forming a composite interference effect of main and auxiliary coordination.

[0077] The first interference zone is constructed according to the first jammer and the third jammer, including:

[0078] S1031: Using the first jammer main jamming node, construct a core jamming area in the main lobe direction of the target receiver;

[0079] S1032: Using the third jammer as an auxiliary jamming node, a compensating jamming zone is established in the weak signal area of the core jamming zone;

[0080] S1033: Determine beam control parameters and transmit power configuration parameters of the first jammer and the third jammer according to the spatial distribution relationship between the core interference area and the compensation interference area.

[0081] In the implementation of steps S1031 to S1033, the primary jamming node first establishes a directional core jamming zone based on the target's position information. This node uses a high-gain directional antenna to form a focused beam, precisely covering the target's mainlobe direction. Its beam direction and width are dynamically calibrated based on real-time electronic reconnaissance data. The three-dimensional spatial boundaries of the core zone are naturally defined by the antenna's radiation characteristics, ensuring a stable, high-intensity jamming field in the mainlobe radiation direction. Auxiliary jamming nodes automatically identify weak radiation areas in the core zone through a distributed sensing network. Nodes can achieve spatiotemporal synchronization via a dedicated data link, allowing the compensation zone and the core zone to form a seamless composite jamming space. Finally, global parameter optimization is achieved through a distributed decision-making system. The system establishes a closed-loop control mechanism based on jamming effectiveness evaluation, with the primary node coordinating with the auxiliary nodes to dynamically adjust radiation parameters. When the target's spatial position or electromagnetic characteristics change, the system recalculates the optimal parameter combination using an intelligent algorithm to ensure that the jamming field deformation remains synchronized with the target's dynamics.

[0082] In order to ensure communication security and prevent interference between the two devices, in a feasible implementation, the method further includes:

[0083] The first jammer sends a matching code to the third jammer and the second jammer in the second jamming zone;

[0084] The first jammer and the third jammer generate a first transmit beam based on matching codes;

[0085] A second jammer in a second interference zone generates a second transmit beam based on the matching code.

[0086] In this embodiment, in order to ensure that multiple jammers do not interfere with each other during the collaborative work process, and at the same time ensure the communication control security and uniformity of the interference efficiency of the overall interference system, in a feasible embodiment, the method further includes: the first jammer, as the main interference node, sends a matching code to the third jammer and other second jammers in the second interference zone as a control basis for beam coordination and interference scheduling. The matching code can be understood as a unique and synchronous modulation control identifier used to coordinate the consistency of each interference node in beam forming, frequency usage, phase control, timing coordination, etc. After receiving the matching code, the first jammer and the third jammer generate a first transmit beam based on the code, thereby ensuring the directionality, phase consistency and power synthesis effect of the main lobe suppression interference, and avoiding the reduction of interference efficiency due to phase inconsistency or frequency conflict between multiple sources of interference. At the same time, each second jammer in the second interference zone also generates a second transmit beam based on the same matching code, realizing distributed interference on the escape path or edge area, and ensuring the overall coordination of the interference network and the operation without mutual interference.

[0087] S104: Acquire the perception information of the first interference zone on the target receiver, construct a second interference zone according to the perception information and the second jammer, and perform lobe suppression interference on the target receiver through the second transmit beam in the second interference zone.

[0088] In this implementation, the first and third jammers in the first interference zone first interfere with the target receiver. The target's response to the interference is then extracted using characteristics such as changes in communication status, spectrum behavior, power feedback, or modulation response. For example, by monitoring changes in the target's return link's bit error rate, frequency hopping, beam redirection behavior, and communication protocol adaptation, the target receiver's current anti-interference strategy and vulnerabilities can be analyzed. This type of perception information is timely and dynamic, serving as fundamental data for subsequent interference scheduling and strategy development.

[0089] After acquiring the perception information, the system links the second jammer to build a "second interference zone" based on this information. The second interference zone is not a simple spatial supplement, but is laid out in combination with the current or predicted slave lobe receiving direction of the target receiver. For example, when it is perceived that the target avoids the main beam from the first interference zone and attempts to restore communication through the side channel, the system will give priority to selecting a second jammer node with beam transmission capability and coverage capability complementary to the first jammer in the direction of the target slave lobe, and establish a surround interference layout around the target from the flank, thereby forming a spatial suppression and encirclement situation. Subsequently, in the second interference zone, each second jammer generates a second transmission beam according to the matching code or strategy parameters sent by the first jammer, achieving efficient interference with the target slave lobe from multiple directions.

[0090] Acquiring the perception information of the first interference area to the target receiver includes:

[0091] S1041: Acquire feedback response characteristics of a target receiver monitored by the first jammer and the third jammer;

[0092] S1042: Determine, based on the feedback response characteristics, a dynamic anti-interference behavior characteristic of the target receiver in the first interference area;

[0093] S1043: Pattern matching is performed on the dynamic anti-interference behavior characteristics and the pre-built target receiver anti-interference feature library to determine the perception information.

[0094] In the implementation of steps S1041 to S1043, the interfering nodes in the first interference zone not only perform the task of transmitting interference but also possess certain monitoring capabilities to collect the target receiver's response behavior under interference. These feedback response characteristics may include, but are not limited to, behavioral indicators such as changes in the target receiver's communication frequency, transmit power adjustment, modulation mode switching, beam direction change, increased data retransmission rate, or control signaling anomalies. By analyzing the type, timing, intensity, and evolution trend of the feedback response characteristics, the target receiver's anti-interference mechanism can be determined, such as whether frequency hopping is enabled, whether it switches to a backup beam, whether the coding rate is reduced, or whether it switches to a backup channel. This process can combine time window analysis with multi-dimensional feature modeling to extract a profile of the target's anti-interference behavior in the current interference environment. The system establishes a library of target receiver anti-interference characteristics, covering typical anti-interference behavior models under various models, different algorithm strategies, and parameter configurations. By comparing and matching the currently monitored anti-interference behavior characteristics with samples in the library, key information such as the type of anti-interference strategy currently used by the target, its intensity level, and response period can be identified. The matching result is the perception information, which is used to guide the subsequent construction of the second interference zone and strategy coordination.

[0095] In a feasible implementation manner, there is an overlap area between the second interference area and the first interference area, and the coverage degree of the overlap area is positively correlated with the anti-interference capability of the target receiver.

[0096] In this embodiment, a coverage area is designed between the second interference area and the first interference area, that is, there is a certain degree of overlap between the two in terms of spatial range, and the coverage area is used to improve the stability and suppression effect of the interference system. On the one hand, the existence of the coverage area enhances the concentration and effectiveness of the interference signal in the main activity area of the target receiver, so that the target is affected by the joint action of multiple interference sources in this area, making it more difficult to avoid the interference signal through frequency hopping, beamforming or anti-interference algorithms; on the other hand, when any interference source in the first interference area or the second interference area weakens its interference capability due to power fluctuations, spatial obstruction or resource scheduling restrictions, the redundant interference mechanism of the coverage area can achieve rapid compensation to avoid the generation of interference vacuum or blind spots. In particular, for target receivers with strong anti-interference capabilities, relying solely on interference signals from a single direction and a single source may not be enough to break through its protection mechanism. The overlapping interference field constructed by multiple interference sources is formed in the coverage area, which can effectively enhance the suppression intensity, increase the spatial complexity and waveform diversity of the interference signal, and thus improve the success rate of suppressing the target.

[0097] In a feasible embodiment, the method also includes: obtaining the anti-interference response characteristics of the target receiver to the first interference area and the second interference area, and dynamically adjusting the main lobe interference parameters of the first interference area and the distributed interference strategy of the second interference area according to the anti-interference response characteristics.

[0098] In this implementation, traditional jamming methods often use static configurations, meaning that once set, jamming parameters remain unchanged throughout the jamming process. However, in real-world testing environments, target receivers typically possess certain anti-jamming capabilities, which dynamically adjust over time to respond to jamming behavior. If the jamming system is unable to perceive these changes in real time and continues to employ a fixed strategy, jamming failures, blind spots, and resource waste are likely to occur. By continuously monitoring the target receiver's response characteristics (such as the degree of communication quality degradation, frequency hopping patterns, and link reestablishment delays), the cooperative jamming system can infer in real time whether the target's anti-jamming strategy is changing and adjust the jamming zone configuration accordingly through closed-loop feedback. For example, when the target's mainlobe anti-jamming capability increases, the directional power density can be increased by narrowing the beam. When the target exhibits frequency hopping or motion trends, the system can preemptively establish a second jamming zone at its likely impact point. When the suppression effect of multiple overlapping jamming zones weakens, the overlap can be increased or the transmission cadence adjusted.

[0099] In this application, the first interference zone and the second interference zone each undertake different interference tasks, and form complementary interference effects through differences in transmission modes to achieve high-intensity, full-time domain, multi-level suppression interference on the target receiver. First, the first interference zone is constructed by the first jammer and the third jammer in collaboration, and is mainly responsible for implementing continuous suppression interference in the main lobe direction of the target receiver. In order to achieve a stable high-intensity interference effect, the first transmission beam adopts a continuous transmission mode, that is, it continuously transmits interference signals to the target for a period of time to form a stable electromagnetic suppression field. This mode is suitable for concentrated interference on the main receiving path of the target receiver, and can form continuous signal coverage in the direction of the main receiving beam, thereby interfering with the target's main communication link or radar receiving direction, reducing its main channel signal processing capability. The second interference zone is constructed by multiple second jammers based on target dynamic perception information, mainly for distributed interference in the side lobe direction or multipath reflection receiving channel of the target receiver. Because these channels are dynamic and uncertain, the second interference zone adopts a pulsed transmission beam, that is, it transmits interference signals to the target area in an intermittent, high-power, short-duration manner. This pulse interference mode can not only effectively deal with the target frequency hopping or dodge strategy, but also disrupt the synchronization and anti-interference algorithms in its receiving link, thereby increasing its overall interference load. In the collaborative work process, the first interference zone is responsible for building an interference barrier that stably suppresses the main line, while the second interference zone dynamically adjusts the interference strategy by sensing feedback information to achieve flexible changes in interference direction, frequency, and timing. When the target receiver tries to avoid main lobe interference and turn to side lobe reception, frequency hopping or short-term communication, the second interference zone can respond quickly and use pulse interference to accurately insert, thereby forming multiple suppressions in time and space. This collaborative relationship effectively makes up for the shortcomings of a single interference method in terms of coverage breadth, response sensitivity and suppression continuity, so that the system still has strong interference adaptability and suppression effects in multi-target and multi-changing environments. Therefore, through the complementarity of the first transmit beam and the second transmit beam in the transmission mechanism and interference strategy, the present application constructs a master-slave collaborative, continuous-pulse alternating interference system, which greatly improves the effectiveness and robustness of the overall interference and meets the interference task requirements in highly complex environments.

[0100] In this embodiment, an embodiment of the present application further provides an electronic device, which may include a memory and one or more processors. The memory and processors are coupled. The memory is configured to store computer program code, which includes computer instructions. When the processor executes the computer instructions, the electronic device may perform the functions or steps described in the above method embodiments.

[0101] This embodiment further provides a computer-readable storage medium, in which computer instructions are stored. When the computer instructions are executed on an electronic device, the electronic device executes each function or step in the above method embodiment.

[0102] This embodiment further provides a computer program product. When the computer program product is run on a computer, it enables the computer to execute each function or step in the above method embodiment.

[0103] Among them, the electronic device, computer-readable storage medium, and computer program product provided in this embodiment are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0104] The above embodiments can be implemented in whole or in part via software, hardware (e.g., circuits), firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. A computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions according to the embodiments of the present application are fully or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable system. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired means (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server or data center that contains a collection of one or more available media. Available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media. The semiconductor media can be a solid-state drive.

[0105] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0106] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0107] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, systems and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0108] In the several embodiments provided in this application, it should be understood that the disclosed systems, systems and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the system or unit can be electrical, mechanical or other forms.

[0109] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0110] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0111] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the existing technology, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program code.

[0112] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A collaborative jamming method based on multiple distributed jammers, characterized in that: The method comprises: Determining a first jammer and a plurality of second jammers from the candidate jammers according to a distance relationship between the candidate jammers and the target receiver; determining an interference auxiliary zone according to the relative azimuth and distance between the first jammer and the target receiver, and determining a third jammer from a plurality of second jammers according to spatial coverage complementarity and interference coordination with the interference auxiliary zone; A first interference zone is established according to the first jammer and the third jammer, and main lobe suppression interference is performed on the target receiver in the first interference zone through a first transmit beam, where the first transmit beam is a continuous transmit beam; Acquiring perception information of the first interference zone on the target receiver, constructing a second interference zone based on the perception information and the second jammer, and performing lobe suppression interference on the target receiver using a second transmit beam in the second interference zone, where the second transmit beam is a pulse transmit beam; The determining of a third jammer from a plurality of second jammers according to the spatial coverage complementarity and interference coordination with the interference auxiliary zone comprises: determining a spatial coverage overlap rate between each of the second jammers and the interference auxiliary zone, and determining a first screening score according to the spatial coverage overlap rate; determining a matching degree of interference parameters between each of the second jammers and the first jammer, and determining a second screening score based on the matching degree of interference parameters; Determine a comprehensive evaluation score for each second jammer based on the first screening score and the second screening score, determine the second jammer with the largest comprehensive evaluation score as the third jammer, and each interference auxiliary zone corresponds to one third jammer; The acquiring the perception information of the target receiver by the first interference area includes: Acquiring feedback response characteristics of the target receiver monitored by the first jammer and the third jammer; determining, based on the feedback response characteristics, a dynamic anti-interference behavior characteristic of the target receiver in the first interference area; The dynamic anti-interference behavior characteristics are pattern matched with a pre-built target receiver anti-interference feature library to determine the perception information.

2. The method of cooperative jamming based on multiple distributed jammers according to claim 1, characterized in that: The determining of a first jammer and a plurality of second jammers from the candidate jammers according to a distance relationship between the candidate jammers and the target receiver comprises: Determining the interference coverage of the candidate jammer to the target receiver according to the distance relationship between the candidate jammer and the target receiver; When the interference coverage rate is greater than or equal to a preset threshold, determining the candidate jammer as the first jammer; When the interference coverage rate is less than a preset threshold, the jammer with the maximum interference coverage rate among the candidate jammers is determined as the first jammer, and the non-first jammer among the candidate jammers is determined as the second jammer.

3. The collaborative jamming method based on multiple distributed jammers according to claim 1, characterized in that: The determining of the interference auxiliary zone according to the relative azimuth and distance between the first jammer and the target receiver includes: determining a main axis direction of the interference auxiliary zone according to a relative azimuth angle between the first jammer and the target receiver; Determining an effective interference radius of the interference auxiliary zone according to a distance between the first jammer and the target receiver; The interference auxiliary area is constructed with the main axis direction as the central axis and the interference effective radius as the reference radius.

4. The collaborative jamming method based on multiple distributed jammers according to claim 1, characterized in that: The step of constructing a first interference zone according to the first jammer and the third jammer includes: Taking the first jammer as a main jamming node, constructing a core jamming area in the main lobe direction of the target receiver; Using the third jammer as an auxiliary jamming node, a compensating interference zone is established in a weak signal area of the core interference zone; The beam control parameters and transmission power configuration parameters of the first jammer and the third jammer are determined according to the spatial distribution relationship between the core interference area and the compensation interference area.

5. The collaborative jamming method based on multiple distributed jammers according to claim 1, characterized in that: There is an overlapping area between the second interference area and the first interference area, and the coverage degree of the overlapping area is positively correlated with the anti-interference capability of the target receiver.

6. The method of cooperative jamming based on multiple distributed jammers according to claim 1, characterized in that: The method further comprises: obtaining anti-interference response characteristics of the target receiver to the first interference area and the second interference area, The main lobe interference parameters of the first interference area and the distributed interference strategy of the second interference area are dynamically adjusted according to the anti-interference response characteristics.

7. The method of cooperative jamming based on multiple distributed jammers according to claim 1, characterized in that: The method further comprises: The first jammer sends a matching code to the third jammer and the second jammer in the second jamming zone; The first jammer and the third jammer generate the first transmit beam based on the matching code; A second jammer in the second interference zone generates the second transmit beam based on the matching code.

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