Intelligent communication countermeasure method and system

Abstract

Disclosed in the present invention are an intelligent communication countermeasure method and a system. The method comprises: acquiring geographic locations of a transmitter and a receiver of a communication party, calculating a channel function of each channel, and constructing a communication party utility model; acquiring the geographic location of a jammer, calculating the gain of each channel, and constructing a jammer utility model; constructing a communication countermeasure process on the basis of a Stackelberg game theory, taking the communication party as a leader in the game process, and taking the jammer as a follower in the game process; and when the utility of the communication party and the utility of a jammer party finally converge after multiple rounds of games, outputting policies of the communication party and the jammer party in a stable state. According to the present invention, an intelligent reflecting surface is introduced into the communication party, the intelligent reflecting surface reflects useful signals on the basis of the location of the receiver, and signals of a direct path and a reflection path are mutually counteracted by changing phases of jamming signals, so as to suppress the jamming signals, thereby effectively improving the anti-jamming capability of the communication party.

Description

Intelligent communication countermeasure method and system Technical Field

[0001] The present invention relates to the field of communication countermeasure technology, and in particular to an intelligent communication countermeasure method and system. Background Art

[0002] In recent years, advances in wireless communication technology have significantly enhanced communications capabilities in both industrial and military sectors. Operators have adopted multi-antenna systems, such as Multiple-Input Multiple-Output (MIMO) technology, to increase signal transmission paths and spatial diversity. This approach improves the robustness and reliability of communication systems. Furthermore, the emergence of software-defined radio (SDR), which implements signal processing, modulation, and demodulation functions through programmable computer software, has revolutionized the field of wireless communications. SDR simplifies the transmission and reception of complex signals and is widely used in various fields. In the field of electronic warfare, both adversaries use communication technologies to conduct reconnaissance, jam, and destroy enemy communications and radar systems. The military uses EW techniques to degrade enemy communications capabilities, disrupt command and control infrastructure, and protect its own communication systems from interference.

[0003] The rapid development of wireless communications has led to a severe shortage of spectrum resources, posing significant challenges to frequency selection and coordination for communication equipment. Furthermore, with the application of software-defined radio (SDR) technology, the production cost of malicious jamming devices is decreasing, and their flexibility is increasing. This poses a greater threat to communication equipment from malicious jamming attacks. Therefore, how to implement intelligent anti-interference channel access decisions in complex spectrum environments remains a key unresolved issue in wireless communication networks.

[0004] Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] In view of the above existing problems, the present invention is proposed.

[0007] Therefore, the present invention provides an intelligent communication countermeasure method and system to solve the problem of poor anti-interference capability of existing intelligent anti-interference channel access decision-making.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] In a first aspect, the present invention provides a method for implementing intelligent communication countermeasures, comprising:

[0010] Obtain the geographic locations of the transmitter and receiver of the communication party, calculate the channel function of each channel, and build the utility model of the communication party;

[0011] Obtain the geographical location of the jammer, calculate the gain of each channel, and build a jammer effectiveness model;

[0012] The communication confrontation process is constructed based on Stackelberg game theory, with the communicating party as the leader and the jammer as the follower in the game process.

[0013] Through multiple rounds of games, the utilities of the communicating party and the interfering party eventually converge, and the strategies of the communicating party and the interfering party in the stable state are output.

[0014] As a preferred solution of the intelligent communication countermeasure method of the present invention, wherein:

[0015] Constructing a utility model for the communication party: Obtain the geographic locations of the communication party's transmitter and receiver, assume that the small-scale fading of all channels is Rayleigh fading, and calculate the channel function of each channel based on the geographic location information of the communication party's transmitter and receiver;

[0016] Construct a jammer utility model: Obtain the jammer's geographic location, assume that the small-scale fading of the interference channel is Rayleigh fading, and calculate the gain of each channel based on the jammer's geographic location information;

[0017] Setting a leader in the game: Set the communicating party as the leader in the game. During the communication confrontation, the leader takes the lead in making decisions, selecting the appropriate communication state based on the channel state and its own constraints. Simultaneously, the intelligent reflective surface adjusts the phase of the reflective element according to the channel state.

[0018] Set up a follower in the game process: Set the jammer as a follower in the game process. After detecting the leader's decision, the follower will respond accordingly.

[0019] Leaders and followers compete: When a leader senses interference from a follower, it responds accordingly by changing its communication state and adjusting the phase of its smart reflective surface to suppress interference signals and maximize its own utility. Followers also actively respond after the leader adjusts its strategy.

[0020] Determine whether the utility states of the communication party and the interference party converge. If the states do not converge, return to the leader to compete with the follower. If the states converge, output the strategies of the communication party and the interference party in the stable state.

[0021] As a preferred solution of the intelligent communication countermeasure method of the present invention, wherein:

[0022] The utility model of the communication party is constructed, and the goal is to optimize the distribution of transmission power by jointly optimizing the distribution of transmission power and the phase shift of the intelligent reflection surface {θ n} n∈N At the same time, the jammer will select a communication channel to send the jamming signal, and the jamming signal ratio of the target receiver should meet in, and They represent the interference signal and useful signal received by the mth receiver respectively, and k is the suppression factor; if the communication party wants to communicate normally, the signal-to-interference ratio should satisfy The minimum power required for the jammer to transmit a signal on this channel is obtained by the suppression factor:

[0023] Among them, r m is the channel gain from the smart reflector to the mth receiver, Φ is the phase matrix of the smart reflector, d m is the mth channel from the jammer to the smart reflector, g m is the channel gain from the mth transmitter to the smart reflector, h m is the channel gain from the mth transmitter to the mth receiver, b m is the channel gain from the jammer to the mth receiver; is the power of the useful signal received by the receiver, is the power of the interference signal received by the receiver, is the power of the useful signal transmitted by the transmitter, The power of the jammer's jamming signal;

[0024] The useful signal model received by the receiver is expressed as:

[0025] in, is the signal power transmitted by the mth transmitter;

[0026] The interference signal model received by the receiver is expressed as:

[0027] in, is the signal power transmitted by the jammer in the mth channel;

[0028] Assuming that throughput is used as the evaluation indicator of the communication party's utility, the communication party's utility is expressed as:

[0029] The utility model of the communication party is finally expressed as:

[0030] As a preferred solution of the intelligent communication countermeasure method of the present invention, wherein:

[0031] The jammer utility model is constructed. The jammer's jamming strategy is set to track the useful signal of the communication party and then calculate the minimum power required to suppress each channel. The jammer selects the channel for jamming within the power range it can provide, and selects the channel with the highest throughput. Therefore, the target utility is expressed as:

[0032] The benefit model of the jammer is expressed as:

[0033] As a preferred solution of the intelligent communication countermeasure method of the present invention, wherein:

[0034] In the process of constructing communication confrontation based on Stackelberg game theory, the definition of the existence of Stackelberg equilibrium is expressed as:

[0035] U C (P C * , Φ * , P J * )≥U C (P C ,Φ,P J * )

[0036] U J (P C * , Φ * , P J * )≥U J (P C * , Φ * , P J )

[0037] According to the sequential determination characteristics of the proposed game model, the jammer adjusts its power allocation strategy and the phase shift strategy of the smart reflector according to the jamming strategy at the end of the previous time period. The jammer adjusts its jamming strategy according to the power allocation scheme detected by the opponent. The process of solving the objective function is expressed as:

[0038] As a preferred solution of the intelligent communication countermeasure method of the present invention, wherein:

[0039] In the process of constructing communication confrontation based on Stackelberg game theory, the game is decomposed into a leader subgame and a follower subgame. The leader subgame is represented as G1 = {M,PC ,{θ n} n∈N ,{U C}};

[0040] In the leader subgame, after obtaining the jamming strategy of the previous time period, there exists at least one Nash equilibrium that satisfies the constraints of the communication model and satisfies the following conditions:

[0041] in, Indicates that except for the mth communication pair, other communication pairs adopt the optimal strategy, and It means that except for the nth smart reflective surface reflective element, all other elements use the optimal phase shift strategy.

[0042] As a preferred solution of the intelligent communication countermeasure method of the present invention, wherein:

[0043] The follower subgame is formulated as: The communicating party adopts the optimal Nash equilibrium strategy Then the jammer acts as a follower to formulate the optimal response strategy P J opt , to maximize U J ; No matter what strategy the leader adopts, the followers always find the best response strategy through their own decisions. The game proposed by the followers has at least one equilibrium solution that includes the leader's optimal decision and the follower's optimal decision.

[0044] In a second aspect, the present invention provides an intelligent communication countermeasure system, comprising:

[0045] The acquisition module obtains the geographical locations of the transmitter and receiver of the communication party, calculates the channel function of each channel, and constructs the utility model of the communication party;

[0046] The calculation module obtains the geographical location of the jammer, calculates the gain of each channel, and builds a jammer utility model;

[0047] Building modules,construct the communication confrontation process based on Stackelberg game theory,taking the communication party as the leader in the game process and the jammer as the follower;

[0048] The output module, through multiple rounds of game, the utilities of the communicating party and the interfering party finally converge, and the strategies of the communicating party and the interfering party in the stable state are output.

[0049] In a third aspect, the present invention provides a computing device, comprising:

[0050] Memory, used to store programs;

[0051] A processor is used to execute the computer-executable instructions, which, when executed by the processor, implement the steps of the intelligent communication countermeasure method.

[0052] In a fourth aspect, the present invention provides a computer-readable storage medium, comprising: when the program is executed by a processor, the steps of implementing the intelligent communication countermeasure method are implemented.

[0053] Beneficial effects of the present invention:

[0054] 1. This method proposes a multi-leader-one-follower anti-interference Stackelberg game model, in which users act as leaders, choose their channel access strategies and transmit first, and tracking jammers act as followers, whose goal is to find the optimal jamming strategy and effectively simulate the real confrontation process.

[0055] 2. This method introduces an intelligent reflective surface on the communication side. The intelligent reflective surface reflects the useful signal according to the position of the receiver. At the same time, by changing the phase of the interference signal, the signals of the direct path and the reflected path cancel each other out, thereby suppressing the interference signal and effectively improving the anti-interference ability of the communication side. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0057] FIG1 is a schematic diagram of a basic flow chart of an intelligent communication countermeasure method provided by one embodiment of the present invention;

[0058] FIG2 is a flow chart of a communication game of an intelligent communication confrontation method provided by one embodiment of the present invention;

[0059] FIG3 is a position distribution diagram of a communication party, an interference party, and an IRS in an intelligent communication countermeasure method provided by one embodiment of the present invention;

[0060] FIG4 is a schematic diagram of the operation process and structure of each time slot in a game process of an intelligent communication confrontation method provided by one embodiment of the present invention;

[0061] FIG5 is a rendering of an intelligent communication countermeasure method according to an embodiment of the present invention;

[0062] FIG6 is a comparison diagram of an intelligent communication countermeasure method provided by an embodiment of the present invention; DETAILED DESCRIPTION

[0063] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in this field without creative work should fall within the scope of protection of the present invention.

[0064] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0065] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0066] The present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0067] In the description of the present invention, it should be noted that the terms "upper, lower, inner, and outer" and other references to orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first, second, or third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0068] In this disclosure, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed, removable, or integral connections. They may also refer to mechanical, electrical, or direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure.

[0069] Example 1

[0070] 1-4 , an embodiment of the present invention provides an intelligent communication countermeasure method, as shown in FIG1 and FIG2 , including:

[0071] S1: Obtain the geographic locations of the transmitter and receiver of the communication party, calculate the channel function of each channel, and build the utility model of the communication party;

[0072] Furthermore, the geographic locations of the transmitter and receiver of the communication party are obtained. The geographical distribution is shown in Figure 3. It is assumed that the small-scale fading of all channels is Rayleigh fading. Based on the geographic location information, the channel function of each channel is calculated. The simulation parameters selected by the communication party are shown in Table 1.

[0073] Table 1 Communication party parameter information table

[0074] Furthermore, the goal is to maximize the total transmission rate of the communication parties by jointly optimizing the allocation of transmit power. n} n∈N To avoid suppressing the interference signal. At the same time, in order to effectively suppress the communication of the communicating party, the interfering party will select a communication channel to send the interference signal. In order to achieve effective interference, the interference signal ratio (JSR) of the target receiver must meet and They represent the interference signal and useful signal received by the mth receiver respectively, and k is called the suppression factor. Therefore, if the communication parties want to communicate normally, the signal-to-interference ratio (SIR) needs to meet the requirements. Through the suppression factor, we can get the minimum power required for the jammer to transmit the signal on this channel:

[0075] Among them, r m is the channel gain from the smart reflector to the mth receiver, Φ is the phase matrix of the smart reflector, d m is the mth channel from the jammer to the smart reflector, g m is the channel gain from the mth transmitter to the smart reflector, h m is the channel gain from the mth transmitter to the mth receiver, b m is the channel gain from the jammer to the mth receiver; is the power of the useful signal received by the receiver, is the power of the interference signal received by the receiver, is the power of the useful signal transmitted by the transmitter, The power of the jammer's jamming signal;

[0076] The useful signal model received by the receiver is expressed as:

[0077] in, is the signal power transmitted by the mth transmitter;

[0078] The interference signal model received by the receiver is expressed as:

[0079] in, is the signal power transmitted by the jammer in the mth channel;

[0080] Assuming that throughput is used as the evaluation indicator of the communication party's utility, the communication party's utility is expressed as:

[0081] The utility model of the communication party is finally expressed as:

[0082] The first constraint limits the total transmit power of the communicating parties. The second constraint states that each transmitter has a certain transmit power range, and each communicating party must meet the SIR>1 / k requirement for normal communication. However, if the minimum power required by the mth transmitter is greater than the maximum power it can transmit, the mth transmitter chooses not to transmit a signal. The third constraint controls the phase shift of the IRS, ensuring that the sum of the energy of the mth interfering signal through the interferer-IRS-receiver and interferer-receiver channels is less than or equal to the signal energy through the interferer-receiver channel. In other words, the interfering signal is suppressed by the IRS. The fourth constraint specifies the phase offset range of the passive components deployed on the IRS.

[0083] S2: Obtain the geographical location of the jammer, calculate the gain of each channel, and build a jammer utility model;

[0084] Furthermore, a jammer utility model is constructed: the geographical location of the jammer is obtained, and the small-scale fading of the interference channel is assumed to be Rayleigh fading. The gain of each channel is calculated. The simulation parameters selected for the jammer are shown in Table 2.

[0085] Table 2 Jammer parameter information table

[0086] Furthermore, the jammer's goal is to find the optimal channel for transmitting the jamming signal. The jammer's jamming strategy is set to track the desired signal from the communicating party and then calculate the minimum power required to suppress each channel. The jammer selects the channel for jamming within its available power range, choosing the channel with the highest throughput. Therefore, the target utility is:

[0087] The benefit model of the jammer is expressed as:

[0088] The first constraint indicates that the jammer will select the mth channel to send the jamming signal, and the power of the jamming signal should meet the suppression condition. By tracking the target useful signal, the jammer can determine the required jamming power to achieve effective suppression. In the second constraint, δ is introduced. J The purpose is to make the jammer's suppression ratio not only meet the suppression factor, but also further improve the suppression effect. J By selecting the correct value for , the jammer can suppress the desired signal while minimizing the impact on other signals. This helps improve the system's interference suppression capabilities and ensure communication quality on the selected channel. The jammer also needs to consider its own power limitations when selecting a jamming channel. The third limit limits the total jamming power the jammer can emit. This ensures that the jammer's interference behavior does not exceed the system's tolerance, thereby maintaining communication reliability.

[0089] S3: Construct a communication confrontation process based on Stackelberg game theory, with the communicating party as the leader and the jammer as the follower.

[0090] Furthermore, a leader is set in the game process: the communicating party is set as the leader in the game process. During the communication confrontation, the leader takes the lead in making decisions and selects the appropriate communication state based on the channel state and its own conditions. At the same time, the intelligent reflective surface adjusts the phase of the reflective element according to the channel state to increase the power of the useful signal.

[0091] Furthermore, a follower is set up in the game process: the jammer is set as a follower in the game process. After detecting the leader's decision, the follower makes a corresponding response to the leader's decision to maximize its own utility.

[0092] Furthermore, the leader and followers engage in a confrontation: After sensing interference from a follower, the leader responds accordingly, changing its communication state and adjusting the phase of its smart reflective surface to suppress the interference signal and maximize its own utility. Followers also actively respond to the leader's strategy adjustments. Each round of leader and follower decision-making can be divided into t time slots. The confrontation process within a time slot is shown in Figure 4. Each time slot represents a round of communication confrontation.

[0093] Furthermore, we first prove the existence of Stackelberg equilibrium (SE), which is defined as follows:

[0094] U C (P C * ,Φ * ,P J * )≥U C(P C ,Φ,P J * )

[0095] U J (P C * ,Φ * ,P J * )≥U J (P C * ,Φ * ,P J )

[0096] According to the sequential determination characteristics of the proposed game model, each confrontation process can be divided into a time slot t, and the process of solving the objective function can be expressed as:

[0097] The above equation illustrates the game's operational process. The communicating party first adjusts its power allocation strategy and the phase shift strategy of the intelligent reflecting surface (IRS) based on the jamming strategy at the end of the previous time period. The jammer then adjusts its jamming strategy based on the power allocation scheme detected by the adversary. Because the communicating party and the jammer have different processes, the game is broken down into a leader subgame and a follower subgame.

[0098] In the proposed game, the leader has the advantage of sensing the previous channel state and taking action first. Usually, the leader subgame is represented as G1 = {M,P C ,{θ n} n∈N ,{U C In this subgame, the following theorem exists:

[0099] Theorem 1: After obtaining the jamming strategy for the previous time period, there exists at least one Nash equilibrium (NE) that satisfies the constraints of the communication model and satisfies the following conditions:

[0100] in, Indicates that except for the mth communication pair, other communication pairs adopt the optimal strategy. It indicates that except for the nth intelligent reflecting surface (IRS) reflective element, all other elements use the optimal phase shift strategy.

[0101] The follower subgame can be formulated as: The communication party adopts the optimal Nash equilibrium (NE) strategy Then the jammer acts as a follower to formulate the optimal response strategy P J opt , to maximize UJ Regardless of the strategy adopted by the leader, the followers always find the best response strategy through their own decisions. The following theorem is obtained:

[0102] Theorem 2: The proposed game has at least one equilibrium solution (SE) that contains the leader's optimal decision and the follower's optimal decision.

[0103] S4: Through multiple rounds of games, the utilities of the communicating party and the interfering party finally converge, and the strategies of the communicating party and the interfering party in the stable state are output.

[0104] Furthermore, it is determined whether the utility states of the communication party and the interference party converge. If the states do not converge, the leader is returned to compete with the follower. If the states converge, the strategies of the communication party and the interference party in the stable state are output.

[0105] This embodiment further provides an intelligent communication countermeasure system, including:

[0106] The acquisition module obtains the geographical locations of the transmitter and receiver of the communication party, calculates the channel function of each channel, and constructs the utility model of the communication party;

[0107] The calculation module obtains the geographical location of the jammer, calculates the gain of each channel, and builds a jammer utility model;

[0108] Building modules,construct the communication confrontation process based on Stackelberg game theory, taking the communicating party as the leader in the game process and the jammer as the follower in the game process;

[0109] The output module, through multiple rounds of game, the utilities of the communicating party and the interfering party finally converge, and the strategies of the communicating party and the interfering party in the stable state are output.

[0110] Furthermore, it also includes:

[0111] Memory, used to store programs;

[0112] A processor is used to load the program to execute the intelligent communication countermeasure method.

[0113] This embodiment also provides a computer-readable storage medium storing a program, which, when executed by a processor, implements the intelligent communication countermeasure method.

[0114] The storage medium proposed in this embodiment and the intelligent communication countermeasure method proposed in the above embodiment belong to the same inventive concept. For technical details not fully described in this embodiment, please refer to the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0115] Through the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented with the help of software and necessary general-purpose hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a computer's floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods of various embodiments of the present invention.

[0116] Example 2

[0117] Referring to Table 1, an embodiment of the present invention provides an intelligent communication countermeasure method. In order to verify its beneficial effects, comparison results of two solutions are provided.

[0118] Figure 5 of our invention and the case of the existing one without the intelligent reflective surface Figure 6. It can be seen from the figure that the effectiveness of the CP and the jammer change regularly within seven change cycles, that is, after seven rounds of confrontation, the effectiveness of both will return to the initial value at the beginning. Without the assistance of IRS, the jammer only needs one tenth of the original power required to achieve interference with the communication target, which greatly reduces the energy consumption of the jammer. At the same time, the target's communication strategy changes regularly, which allows the jammer to quickly select the interference strategy based on the previously obtained state information after multiple detections, without the need for channel reconnaissance, greatly improving the interference efficiency. Therefore, compared with the solution proposed in this patent, although the communicating party can save the calculation time of selecting the strategy in the absence of IRS, the disadvantage is that the communication process is easily interfered with and the security is not high.

[0119] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An intelligent communication countermeasure method, characterized in that: include: Obtain the geographic locations of the transmitter and receiver of the communication party, calculate the channel function of each channel, and build the utility model of the communication party; Obtain the geographical location of the jammer, calculate the gain of each channel, and build a jammer utility model; The communication confrontation process is constructed based on the Stackelberg game theory, with the communication party as the leader in the game process and the jammer as the follower in the game process; Through multiple rounds of games, the utilities of the communicating party and the interfering party finally converge, and the strategies of the communicating party and the interfering party in a stable state are output.

2. The intelligent communication countermeasure method according to claim 1, characterized in that: The following steps are also included: Construct the utility model of the communication party: obtain the geographical location of the communication party's transmitter and receiver, assume that the small-scale fading of all channels is Rayleigh fading, and calculate the channel function of each channel based on the geographical location information of the communication party's transmitter and receiver; Construct a jammer utility model: obtain the geographical location of the jammer, assume that the small-scale fading of the interference channel is Rayleigh fading, and calculate the gain of each channel based on the geographical location information of the jammer; Set the leader in the game process: Set the communication party as the leader in the game process. In the process of communication confrontation, the leader takes the lead in making decisions and selects the appropriate communication state based on the channel state and its own conditions. At the same time, the intelligent reflective surface adjusts the phase of the reflective element according to the channel state. Set up followers in the game process: Set the jammer as a follower in the game process. After detecting the leader's decision, the follower will respond accordingly to the leader's decision. Leaders and followers compete with each other: After the leader senses the interference of the follower, it responds accordingly, changes the communication state, and adjusts the phase of the smart reflective surface to suppress the interference signal and maximize its own utility; Followers also actively respond after the leader adjusts his strategy; Determine whether the utility states of the communication party and the interference party converge. If the states do not converge, return to the leader to compete with the follower. If the states converge, output the strategies of the communication party and the interference party in the stable state.

3. The intelligent communication countermeasure method according to claim 1 or 2, characterized in that: The utility model of the communication party is constructed, and the goal is to jointly optimize the allocation of transmission power and the phase shift {θ n } n∈N ; At the same time, the jammer will select a communication channel to send the jamming signal, and the jamming signal ratio of the target receiver should satisfy in, and They represent the interference signal and useful signal received by the mth receiver respectively, and k is the suppression factor; if the communication parties want to communicate normally, the signal-to-interference ratio should satisfy The minimum power required for the jammer to transmit a signal on this channel is obtained by the suppression factor: Among them, r m is the channel gain from the smart reflector to the mth receiver, Φ is the phase matrix of the smart reflector, d m is the mth channel from the jammer to the smart reflector, g m is the channel gain from the mth transmitter to the smart reflector, h m is the channel gain from the mth transmitter to the mth receiver, b m is the channel gain from the jammer to the mth receiver; is the power of the useful signal received by the receiver, is the power of the interference signal received by the receiver, is the power of the useful signal transmitted by the transmitter, The power of the jammer's jamming signal; The useful signal model received by the receiver is expressed as: in, is the signal power transmitted by the mth transmitter; The interference signal model received by the receiver is expressed as: in, is the signal power transmitted by the jammer in the mth channel; Assuming that throughput is used as the evaluation index of the communication party's utility, the communication party's utility is expressed as: Finally, the utility model of the communication party is expressed as:

4. The intelligent communication countermeasure method according to claim 3, characterized in that: The jammer utility model is constructed. For the jammer's jamming strategy, after tracking the useful signal of the communication party, the jammer calculates the minimum power required to suppress each channel; the jammer selects the channel for jamming within the power range it can provide, and selects the channel with the highest throughput; therefore, the target utility is expressed as: The benefit model of the jammer is expressed as:

5. The intelligent communication countermeasure method according to claim 4, characterized in that: In the process of constructing communication confrontation based on Stackelberg game theory, the definition of the existence of Stackelberg equilibrium is expressed as: According to the sequence determination characteristics of the proposed game model, the jammer adjusts its power allocation strategy and the phase shift strategy of the intelligent reflector according to the jamming strategy at the end of the previous time period. The measured power allocation scheme adjusts its own interference strategy and the process of solving the objective function is expressed as: Optimization Problem: P C * (t),Φ * (t) 6. The intelligent communication countermeasure method according to claim 5, characterized in that: In the process of constructing communication confrontation based on Stackelberg game theory, the game is decomposed into a leader subgame and a follower subgame. The leader subgame is represented by G1={M,P C ,{θ n } n∈N ,{U C }}; In the leader subgame, after obtaining the interference strategy of the previous time period, there is at least one Nash equilibrium that satisfies the constraints of the communication model and satisfies the following conditions: in, Indicates that except for the mth communication pair, other communication pairs adopt the optimal strategy, and It means that except for the nth smart reflective surface reflective element, other elements use the optimal phase shift strategy.

7. The intelligent communication countermeasure method according to claim 6, characterized in that: The follower subgame is formulated as: The communicating party adopts the optimal Nash equilibrium strategy Then the jammer, as a follower, formulates the optimal response strategy P J opt , to maximize U J No matter what strategy the leader adopts, the followers always find the best response strategy through their own decisions. The game proposed by the followers has at least one equilibrium solution that includes the optimal decision of the leader and the optimal decision of the followers.

8. A system for implementing an intelligent communication countermeasure method, characterized in that: An acquisition module obtains the geographic locations of the transmitter and receiver of the communication party, calculates the channel function of each channel, and constructs a utility model of the communication party; The calculation module obtains the geographical location of the jammer, calculates the gain of each channel, and builds a jammer utility model; The building module constructs the communication confrontation process based on the Stackelberg game theory, taking the communication party as the leader in the game process and the jammer as the follower in the game process; The output module, through multiple rounds of games, the utilities of the communicating party and the interfering party finally converge, and the strategies of the communicating party and the interfering party in the stable state are output.

9. An electronic device, characterized in that: include: Memory, used to store programs; A processor, used to load the program to execute the method for realizing intelligent communication countermeasure according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a program, characterized in that: When the program is executed by a processor, the method for realizing intelligent communication countermeasure as described in any one of claims 1 to 7 is implemented.

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