Distinguishing method for active interference type of distributed radar

A technology of active interference and discriminative methods, applied in character and pattern recognition, biological neural network models, radio wave reflection/re-radiation, etc., can solve problems such as weak target signal energy, difficult solution, and difficult modeling

CN114510972APending Publication Date: 2022-05-17INFORMATION SCI RES INST OF CETC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-05-17

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Abstract

The invention provides a distributed radar active interference type discrimination method based on bilevel programming, and belongs to the technical field of distributed radar anti-interference. The discrimination method comprises the following steps: processing signal features of a plurality of nodes of the distributed radar to obtain a connection relationship between the nodes; obtaining a neighbor aggregation function on the basis of preprocessing the signal level of each node; based on the connection relationship between the nodes and the neighbor aggregation function, completing the construction of the graph neural network; and identifying the distributed radar active jamming type according to the graph neural network. According to the method, the graph neural network is utilized to construct the basic model of the distributed radar detection system, the node connection relation and the neighbor aggregation function of the graph neural network are adaptively and dynamically adjusted by utilizing the bilevel programming optimization algorithm for various different interference modes, and the accuracy and efficiency of the model for identifying interference types are improved.
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Description

technical field

[0001] The invention belongs to the technical field of distributed radar anti-interference, and in particular relates to a method for discriminating active interference types of distributed radars. Background technique

[0002] The distributed radar system has robust monitoring performance, high-precision target positioning capability and wider detection coverage, which is the development trend of anti-jamming in the future. However, due to the complex dynamic environment and the influence of the opponent's active interference (suppression interference, deception interference), the energy of the target signal is often very weak, so the type of active interference can be identified by processing the signal, and the interference information can be obtained. It is very important to implement targeted interference countermeasures to ensure the survival of one's own radar on the battlefield. At present, traditional methods such as intermediate frequency signal pr...

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Unless otherwise specified, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "Include" or "comprising" used in the present invention neither limit the mentioned shapes, numbers, steps, actions, operations, components, elements and / or their groups, nor exclude the occurrence or...