Research And Design Of Fast Detection And Tracking Method For Laser Weapons Based On Multi-core DSP Platform

With the success of laser weapons in combating rockets,drones and other targets on a relatively near range,the actual prospects of laser weapons are favored by various military powers.Laser weapons have excellent performances such as speed,flexibility,accuracy and anti-electromagnetic interference.They are important options and development direction for the development of optoelectronic countermeasures,air defense and strategic defense.Based on a certain type of vehicle-mounted laser weapon project,this dissertation studies the method of rapid detection and tracking of moving targets,and designs an image processing system based on multi-core DSP platform.The purpose is to meet the high-precision and high-realtime requirements of the laser weapon for the photoelectric tracking platform,and to improve the performance of photoelectric target detection and tracking.The main contents of this dissertation are as follows:1)According to the functional requirements and performance indicators of the laser weapon image processing system,this dissertation designed software and hardware and analyzed the problems that need to be solved in the target detection and tracking algorithm in the coarse and fine tracking image processing system.2)In the coarse tracking image processing system,the target detection and tracking are realized by the pyramid LK optical flow method and template matching method for the moving target in the coarse tracking window under the sky background.Aiming at the problem of transient occlusion target in the cloud during the tracking process,it proposed a kernelcorrelation filter tracking algorithm based on high confidence model update.3)In the fine tracking image processing system,a dynamic target tracking algorithm based on SURF feature point matching is designed for the functional requirements of the laser weapon to stably strike the target local feature points.4)Aiming at the software requirements of image processing system,it studied a variety of communication design,system function implementation and nuclear software workflow design.The experiments of tracking and damage on drones show that the laser weapon rapid detection and tracking method can realize the fast locking and stable real-time tracking of the drone.