Radar beam feature extraction method and device based on unmanned aerial vehicle cluster

Abstract

The invention provides a radar beam feature extraction method and device based on an unmanned aerial vehicle cluster, and belongs to the field of unmanned aerial vehicle early warning detection, and the method comprises the steps: setting an unmanned aerial vehicle cluster formation as a topological structure of a concentric double-circle regular m-polygon; continuously adjusting the unmanned aerial vehicle cluster array, so that the radar beam irradiation direction is perpendicular to the unmanned aerial vehicle cluster array plane; fixing the position of the inner-ring unmanned aerial vehicle, expanding the outer-ring regular polygon of the unmanned aerial vehicle, and recording the receiving value of the unmanned aerial vehicle; according to the unmanned aerial vehicle cluster formation and the receiving values of the unmanned aerial vehicles, constructing graph signals in real time, and carrying out graph Fourier transform on the graph signals; and when the effective basis proportion of the spectrum subjected to the Fourier transform is converged, taking an area enclosed by the corresponding outer ring unmanned aerial vehicle position when the effective basis proportion is converged as a beam irradiation range. According to the method, radar beam feature parameters such as the maximum amplitude of a radar beam irradiation range, the beam irradiation range and 3dB beam width can be extracted by applying a beam feature extraction technology on the array.

Description

technical field [0001] The invention belongs to the field of early warning and detection of unmanned aerial vehicles, and more specifically relates to a radar beam feature extraction method and device based on unmanned aerial vehicle clusters. Background technique [0002] Radar emitter reconnaissance is to extract radar beam features by intercepting and processing radar emitter signals to realize the classification and identification of different functional parameters, positions, and even models of radars, especially in the research of phased array radar reconnaissance. Acquiring electronic intelligence such as radar parameters quickly and accurately is the pursuit of reconnaissance. The traditional stand-alone reconnaissance method is obviously insufficient in the radar reconnaissance efficiency of the current complex system. It is of great significance to study and improve the reconnaissance efficiency under certain background requirements. In the reconnaissance of radar ...

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Problems solved by technology

[0004] Aiming at the defects of the prior art, the purpose of the present invention is to provide a radar beam feature extraction method and device based on UAV clusters, aiming to solve the lack of radar beam feature extraction for UAV clusters in the prior art, and then cannot guarantee The problem of the UAV swarm successfully completing the reconnaissance mission

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