"Low-slow-small" target detection and recognition system and method

Abstract

The invention relates to a "low-slow-small" target detection and recognition system and method and belongs to the field of target detection technologies. Through the "low-slow-small" target detection and recognition system and method, detection and recognition of a "low-slow-small" unmanned aerial vehicle target are realized. According to the system, a panoramic gazing unit is used for full-view target early-warning detection; a target information perception unit is used for perceiving distance information, visible light image information and infrared image information of a suspicious target; an image synthetic processing box is used for searching a target region according to early-warning detection information and calculating azimuth and pitch angle information of the suspicious target; the target information perception unit is controlled to align to the suspicious target in an early-warning region to perform target information perception; and according to received perception result information, feature information extraction and synthetic recognition on the suspicious target are performed, and the type of the suspicious target is determined. Through the "low-slow-small" target detection and recognition system and method, a warning can be given to the "low-slow-small" unmanned aerial vehicle target, which is in a distance not longer than 2km and has a wingspan not smaller than 0.6m*0.6m, in an air space covered within a 360-degree*30-degree range in a complicated urban environment.

Description

technical field [0001] The invention relates to the technical field of target detection, in particular to a "low, slow and small" target detection and identification system and method. Background technique [0002] "Low, slow and small" UAV targets have small radar scattering area, low flight altitude, slow speed, and no obvious Doppler frequency shift. The detection and identification of them has become a worldwide problem. At present, the photoelectric means used for target detection and recognition of "low, slow and small" UAVs mainly include laser ranging, visible light imaging or array camera imaging, infrared imaging and other detection technologies. These detection methods have different characteristics, and have their own strengths in terms of detection distance, sensitivity, energy efficiency range, ability to resist harsh weather, and multi-target simultaneous tracking ability. Target detection and recognition problems. Contents of the invention [0003] In vi...

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Problems solved by technology

[0003] In view of the above analysis, the present invention aims to provide a "low, slow and small" target detection and recognition system and method to solve the problem of detection and recognition of "low, slow and small" UAV targets in complex urban environments

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