Geometric Positioning Method of Multi-infrared Target Detection
Aiming at the problems of real-time and accurate positioning of ground targets,the geometric positioning method of multi-infrared target detection is studied.In the offline stage,mass positioning data is generated,and the Extreme Gradient Boosting method is used to construct two-infrared cross positioning accuracy model.In the real-time positioning stage,firstly,the paper combines three infrared sensors two by two for direction-finding cross positioning,and calculates each group of cross positioning coordinates.Secondly,the accuracy model is called,and the corresponding infrared cross positioning accuracy is obtained by inputting the baseline information and azimuth angle information of each group of infrared.Finally,combined with the cross positioning coordinates and corresponding accuracy,the geometric solution expression is constructed,and the target position coordinates are estimated by the centroid method.The verification results show that the positioning result of this method is better than any cross positioning result in the same group.
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