Research On Digital Target Tracking And Information Acquisition Methods Of TV Tracking Radar

Television tracking system is a kind of passive image recognizing and tracking equipment. It can separate the targets form the field, certain their position, estimate their movement trend and realize the real-time tracking of the targets, at complicated background and according to standard television system type. It has the characteristics of high tracking accuracy, steady tracking state, strong anti-interference ability, good resolution, low cost and so on. It has acquired the extensive application in weapon system because of its great military value.The TV tracking system is made of three main parts, which include the image detection device, the image processing part and the servo system. To realize the its numeralization and intelligence, get more motion parameters of the moving targets form the serial images, are the development trends of the tracking system. The image process part of the system is also called as the tracking process device, is the system's key component to acquire and recognize the target and estimate its motion parameters. The system's digitization and intelligence design primarily is to point this part's design. The two important tracking methods based on optical flow algorithm and corner detection having got the important application in the aspects of target identifying to estimate with motion parameters have been discussed in detail. The experiment expresses, two kinds of methods is each to have the advantage with the spare lot of the improvement, on the experience foundation a characteristic corner tracking methods had been presented. The characteristic corner tracking method describes the target brevity and has the obvious advantage in the aspects of target identifying with motion analyzing.In this thesis we investigate the digital target tracking and information acquisition methods of TV tracking system that equipped on the warship. The main contents includes:The digital TV tracking system's total design concept and the primarily realized methods. The key components of the system's design have been discussed.The theory of optical flow field and its applications in tracking system has been studied. The optical flow algorithm has been test by Matlab programs.The theory and realization of the corner tracking method. The method to acquire the construction and motion characteristic of the target whit high accuracy based on withdrawing the corner features of the target has been studied. Some methods of extracting corner features and matching the corners have been compared by experimentation.The theory and realization of the characteristic corner tracking method. The concept of characteristic corner has been presented. The method is a new way for building a simple target's model and increase calculating speed to realization the efficiently accurate tracking.