Method for accurately detecting position of low-speed small unmanned aerial vehicle through radar photoelectric cooperation

Abstract

The invention relates to a method for accurately detecting the position of a low-speed small unmanned aerial vehicle through radar photoelectric cooperation, and the method comprises the steps: enabling one radar and a plurality of photoelectric equipment to be installed at a commanding height of a monitoring region in an array layout mode, building a cooperative detection space rectangular coordinate system through taking the center of an array as an original point, and preliminarily detecting the position of the unmanned aerial vehicle through the radar, according to the target position information detected by the radar, adjusting the observation direction and angle of the corresponding photoelectric equipment so that the staring field is located near the target, then carrying out scanning search, and capturing the target; after the target is captured, tracking the target, locking the target to the center of a field of view, and calculating the position of the target in a cooperativedetection space rectangular coordinate system according to the distance, the direction angle and the pitch angle between the target and the photoelectric equipment. According to the scheme, the technical problem of low positioning precision of the unmanned aerial vehicle due to the complexity of an urban environment, the particularity of a low-altitude low-speed small target and the performance limitation of independent radar or photoelectric equipment in the prior art is solved.

Description

technical field [0001] The invention relates to the field of detection of unmanned aerial vehicles, in particular to a method for accurately detecting the position of low-speed and small unmanned aerial vehicles through radar and photoelectric cooperation. Background technique [0002] The frequent occurrence of "low, slow and small" unmanned aerial vehicles, such as random flying and black flying, has brought new challenges to urban security work. Intercepting and attacking such targets requires precise positioning of the target first, and due to the complexity of the urban environment and the particularity of low-altitude, slow-moving and small targets, it is difficult to accurately detect the position of such unmanned aerial vehicles. Although radar can detect "low, slow and small" unmanned aerial vehicles, it is not stable enough, and the positioning accuracy is poor, and the error can reach several meters or even tens of meters. The detection angle of photoelectric equ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a radar photoelectric cooperative method for accurately detecting the position of low-speed and small unmanned aerial vehicles, and to solve the problems in the existing technology due to the complexity of the urban environment and the special characteristics of low-altitude, slow-speed and small targets. The technical problem of low positioning accuracy of unmanned aerial vehicles due to the performance limitation of single radar or optoelectronic equipment

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