Velocity measuring method of ground motion object by use of unmanned plane

Abstract

The invention discloses a velocity measuring method of a ground motion object by use of an unmanned plane. The method comprises the following steps: an aviation photoelectric surveillance platform carries out object searching in a relatively quite large scope, after the position of a search area is given, a visible light camera is driven to rotate to enable an object to enter a tracking view field, and the view filed is searched by use of a stepping and staring combined mode; after a motion object image of interest is obtained, an image tracker starts working, isolates aerial carrier attitude change and interference of low-frequency vibration, enables the object to be always maintained at the center of the view field of the camera and realizes stable tracking of the object; it is maintained that the aviation photoelectric surveillance platform stably tracks the motion object, and coordinates of the motion object at each time point under a reference coordinate system are solved every equal time period; and calculated coordinate data of multiple objects under the reference coordinate system are substituted into a parameter equation of an object motion locus, unknown parameters in the reference equation are fitted by use of a least square method, the derivative of the reference equation for time t is respectively solved once and twice, and an object speed and an accelerated speed are solved.

Description

Technical field: [0001] The invention relates to a method for measuring the speed of a ground moving target by an unmanned aerial vehicle, which utilizes the characteristics of an aerial photoelectric reconnaissance platform that can stably track the target, and combines the flight parameters of the unmanned aerial vehicle itself to realize the speed measurement of the ground moving target. Background technique: [0002] UAVs have the advantages of small size, flexible maneuverability, and can carry a variety of sensors, which can provide various forms of target images and location information, and are often used to complete various reconnaissance tasks. With the development of science and technology, only the positioning of ground targets can no longer meet the needs of comprehensive and dynamic information. It is very necessary to use the airborne aerial photoelectric reconnaissance platform to measure the speed of ground targets in the air. At present, there is no similar...

AI Technical Summary

Problems solved by technology

With the development of science and technology, only the positioning of ground targets can no longer meet the needs of comprehensive and dynamic information. It is very necessary to use the airborne aerial photoelectric reconnaissance platform to measure the speed of ground targets in the air.

At present, there is no similar report in the literature published at home and abroad

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