A method for optimizing configuration of single-station interference resources

Abstract

The application belongs to the technical field of electronic warfare, and particularly relates to a single-station interference resource optimization configuration method. When a single-station system faces multiple radiation sources at the same time, the detection probability of each opponent radar is obtained based on the false alarm probability of each opponent radar and the signal-to-noise ratio of each opponent radar; the detection probability of a single radiation source is calculated based on the relationship among the detection probability of each opponent radar, each false alarm probability and each signal-to-noise ratio, and then the minimum fusion detection probability is found out under the condition that the single-station system allocates different interference resources, the single-station interference resource optimization configuration is performed according to the strategy, and the interference power is reasonably allocated so that the detection performance of the entire radar network reaches the minimum. The single-station interference resource optimization mathematical model is proposed, and the optimization configuration of the single-station interference resource when facing multiple radiation sources at the same time is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic warfare, and particularly relates to a method for optimizing configuration of single-station jamming resources. BACKGROUND

[0002] Electronic warfare is increasingly becoming a key factor in determining the success or failure of modern warfare. With the continuous development of science and technology, modern electronic warfare is more diversified, and gradually develops into a new form of warfare containing radar countermeasures, communication countermeasures, photoelectric countermeasures, underwater acoustic countermeasures, GPS navigation countermeasures, precision-guided weapon countermeasures, military satellite countermeasures, and new concept electronic warfare weapon countermeasures.

[0003] Radar electronic warfare is an important branch of electronic warfare, mainly including radar electronic support (ES), radar electronic attack (EA) and radar electronic protection (EP). Radar electronic jamming is one of the main contents of radar electronic warfare, aiming to create a complex electromagnetic environment and greatly weaken the combat performance of enemy radars, and its importance has been proven by several war examples.

[0004] The improvement of modern radars in various aspects poses great challenges to radar countermeasures: first, the prerequisite for implementing electronic jamming is that electronic reconnaissance equipment can effectively obtain important information of enemy radars, otherwise it is basically impossible to effectively jam enemy radars, so electronic reconnaissance equipment must first overcome the obstacles of radar low sidelobe, low probability of intercept waveform, radar signal parameter agility, etc. anti-interception technology; second, after electronic reconnaissance equipment obtains important information of enemy radars, to effectively jam the radars, the jammer must ensure effective jamming signals, sufficient transmission power, sufficient antenna gain, etc., to ensure that the jamming signals can enter the enemy radars and affect their normal work; under these prerequisites, subsequent countermeasures such as anti-radiation missiles can be more easily implemented.

[0005] It can be seen that the research on modern radar jamming technology is of great significance, and whether the electronic jamming of modern radars is effective or not is directly related to the success or failure of modern warfare.

[0006] Meanwhile, the jamming resource configuration when facing multiple radiation sources has always been a difficulty, and the main shortcomings of the existing technology are as follows:

[0007] Main shortcoming one: after the jamming system performs external radiation source threat assessment, it jams high-threat radiation sources according to the threat level, and cannot simultaneously jam multiple radiation sources;

[0008] Main shortcoming two: when the jamming system faces multiple radiation sources at the same time, it adopts a time-sharing way to suppress multiple radiation sources, and cannot achieve the effect of minimizing the detection performance of the entire enemy radar network. SUMMARY

[0009] Therefore, the application provides a single-station interference resource optimization configuration method.

[0010] In order to achieve the above technical effects, the application adopts the following specific technical solutions:

[0011] The single-station interference resource optimization configuration method is applied to a single-station system facing multiple radars at the same time, and comprises the following steps:

[0012] S101: obtaining a detection probability of each opponent radar based on a false alarm probability of each opponent radar and a signal-to-noise ratio of each opponent radar;

[0013] S102: calculating a detection probability of each single radar based on a relationship among the detection probability of each opponent radar, the false alarm probability and the signal-to-noise ratio;

[0014] S103: finding a fusion detection probability according to a single-station system distribution of different interference resources, and performing single-station interference resource optimization configuration.

[0015] Further, the fusion detection probability is a minimum fusion detection probability; and the single-station interference resource optimization configuration is used to support distribution of interference power to minimize the detection performance of the single-station system.

[0016] Further, the calculation method of the false alarm probability is as follows:

[0017]

[0018] wherein, P f is the false alarm probability, V T is a threshold voltage, and ψ0 is a noise voltage.

[0019] Further, when the radar source information is unknown, the false alarm probability is 1.0e-6.

[0020] Further, when the single-station system can identify the radar source signal or has prior information, the false alarm probability value of the radar source is extracted according to the external radar source information.

[0021] Further, the calculation method of the signal-to-noise ratio is as follows:

[0022] Based on the radiation source signal detected by the single-station system, the power of the received echo signal of the radiation source is calculated; based on the bandwidth of the detected signal, the receiving noise of the radiation source system is calculated; the power of the interference signal when it reaches the receiving end of the radiation source is calculated, and the signal-to-noise ratio is obtained according to the following formula.

[0023]

[0024] Where: SNR is the signal-to-noise ratio of the opposing radar, S is the target signal received by the opposing radar, J is the interference level received by the opposing radar, and N is the system noise of the opposing radar.

[0025] Furthermore, based on the relationship between detection probability, false alarm probability, and signal-to-noise ratio, the detection probability P of a single radiation source is calculated. dn The method uses the following formula:

[0026] A = log(0.62 / P) f );

[0027] B = log(P) d / (1-P d ));

[0028] SNR = 10 × log 10 (A + 0.12 × A × B + 1.7 × B)

[0029] Where: P f Let P be the false alarm probability. d This represents the detection probability.

[0030] Furthermore, based on the detection probability of each radiation source, the method for calculating the fusion detection probability uses the following formula: P D =1-(1-P) d1 (1-P) d2 ....(1-P dn ).

[0031] Furthermore, the method for optimizing the allocation of single-site interference resources also includes S104: calculating the fusion detection probability P of multiple radiation sources under different interference resource allocation conditions. Di .

[0032] Furthermore, the method for allocating interference power to minimize the detection performance of a single-station system is as follows:

[0033] Find min_P D The minimum value is used to optimize the allocation of single-site interference resources and distribute interference power. Attached Figure Description

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0035] Figure 1 For the specific embodiments of the present application, a flow chart of a method for optimizing configuration of single-station interference resources. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below with reference to the drawings.

[0037] The above embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. The present application can also be implemented or applied by other different specific embodiments, and each detail in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] It should be noted that the various aspects described below are within the scope of the embodiments described in the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, any aspect described herein can be implemented independently of any other aspect and various embodiments of the present application can be implemented independently of one another. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects discussed herein. In addition, an apparatus can be implemented or a method can be practiced using other structure and / or functionality in addition to or other than one or more of the aspects discussed herein.

[0039] It should also be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The shapes, numbers and proportions of the components when actually implemented can be arbitrarily changed, and the layout pattern of the components can also be more complex.

[0040] Also in the following description, specific details are given to provide thorough understanding of examples. However, one skilled in the relevant art will understand that the aspects can be practiced without these specific details.

[0041] In one embodiment of the present application, a method for optimal configuration of single-station interference resources is provided, which is applied to a single-station system facing simultaneous multiple radiation sources, such as Figure 1 as shown, comprising the following steps:

[0042] S101: obtaining a detection probability of each opponent radar based on a false alarm probability of each opponent radar and a signal-to-noise ratio of each opponent radar;

[0043] S102: calculating a detection probability of each single radiation source based on a relationship between the detection probability of each opponent radar, each false alarm probability and each signal-to-noise ratio;

[0044] S103: finding out a fusion detection probability according to a single-station system under a condition of distributing different interference resources, and performing optimal configuration of single-station interference resources.

[0045] According to the finding out of the fusion detection probability, the optimal configuration of single-station interference resources can be performed in this embodiment, and the optimal configuration of single-station interference resources facing simultaneous multiple radiation sources is realized.

[0046] In one embodiment, the fusion detection probability is a minimum fusion detection probability; and the optimal configuration of single-station interference resources is used to support distribution of interference power to minimize the detection performance of the single-station system.

[0047] This embodiment realizes the optimal configuration of single-station interference resources facing simultaneous multiple radiation sources.

[0048] In this embodiment, the calculation method of the false alarm probability is:

[0049]

[0050] wherein: P f is the false alarm probability, V T is the threshold voltage, and ψ0 is the noise voltage.

[0051] In this embodiment, when the radiation source information is unknown, the false alarm probability takes a value of 1.0e-6.

[0052] In this embodiment, when the single-station system can identify the radiation source signal or has prior information, the false alarm probability value of the radiation source is extracted according to the external radiation source information.

[0053] According to the radiation source signal detected by the single station system, the received echo signal power of the radiation source is calculated; according to the bandwidth of the detected signal, the received noise of the radiation source system is calculated; the power of the interference signal reaching the receiving end of the radiation source is calculated, and the signal-to-noise ratio is obtained according to the following formula:

[0054]

[0055] Wherein: SNR is the signal-to-noise ratio of the opponent radar, S is the target signal received by the opponent radar, J is the interference received by the opponent radar, and N is the system noise of the opponent radar.

[0056] In this embodiment, according to the relationship among the detection probability, the false alarm probability and the signal-to-noise ratio, the detection probability P dn of a single radiation source is calculated.

[0057] A = log (0.62 / P f );

[0058] B = log (P d / (1-P d ));

[0059] SNR = 10 x log 10 (A + 0.12 x A x B + 1.7 x B)

[0060] Wherein: P f is the false alarm probability, and P d is the detection probability.

[0061] In this embodiment, according to the detection probability of each radiation source, the fusion detection probability is calculated by the following formula: P D = 1-(1-P d1 )(1-P d2 ).....(1-P dn );

[0062] In this embodiment, the method for optimizing the configuration of the single station interference resource further comprises S104: calculating the fusion detection probability P Di of the multiple radiation sources obtained under different interference resource allocation.

[0063] In this embodiment, the method for realizing the allocation of the interference power to minimize the detection performance of the single station system is:

[0064] Finding the minimum value of min_P D to optimize the configuration of the single station interference resource and allocate the interference power.

[0065] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for optimal configuration of interference resources for a single station, characterized in that, The application is applied to a single station system facing multiple radiation sources at the same time, and includes the following steps: S101: obtaining a detection probability of each opponent radar based on a false alarm probability of each opponent radar and a signal-to-noise ratio of each opponent radar; S102: calculating a detection probability of each single radiation source based on a relationship between the detection probability of each opponent radar, each false alarm probability and each signal-to-noise ratio; S103: finding a fusion detection probability according to an allocation of different interference resources of the single station system, and performing an optimal allocation of the single station interference resources; The calculation method of the false alarm probability is as follows: wherein: is a false alarm probability, is a threshold voltage, is a noise voltage; According to a radiation source signal detected by the single station system, the received echo signal power of the radiation source is calculated; according to the bandwidth of the detected signal, the received noise of the radiation source system is calculated; the power of the interference signal reaching the receiving end of the radiation source is calculated, and the signal-to-noise ratio is obtained according to the following formula: ； wherein: SNR is the signal-to-noise ratio of the opponent radar, S S is the target signal received by the opponent radar, J I is the interference received by the opponent radar, N N is the system noise of the opponent radar; According to the relationship among the detection probability, false alarm probability and signal-to-noise ratio, the detection probability of a single emitter is calculated The method employs the following formula: A = log 10 (0.62 / P f ); B = log 10 (P d / (1-P d )); SNR = 10 x log 10 (A + 0.12 x A x B + 1.7 x B); wherein: P f is the false alarm probability, P d is the detection probability; According to the detection probability of each radiation source, the fusion detection probability is calculated by using the following formula: 。 2. The method of claim 1, wherein: The fusion detection probability is the minimum fusion detection probability; the optimal allocation of the single station interference resources is used to support the allocation of the interference power to minimize the detection performance of the single station system.

3. The method of claim 1, wherein: When the radiation source information is unknown, the false alarm probability is 1.0e-6.

4. The method of claim 2, wherein: When the single station system can identify the radiation source signal or has prior information, the false alarm probability value of the radiation source is extracted according to the external radiation source information.

5. The method of claim 1, wherein: The method for optimizing configuration of the single-station interference resource further comprises S104: calculating a fusion detection probability of the simultaneous multiple radiation sources obtained under different interference resource allocation conditions .

6. The method of claim 2, wherein: The method for minimizing the detection performance of the single station system by allocating the interference power is as follows: Find the minimum of min_P D to optimize the single station interference resource configuration and allocate interference power.

Images