Tracking Algorithm For Accurate Guidance System Simulation And Micro Servo Controller Design

Recent years the application of optoelectroniclly guided weapon with high precision, such as laser guided bomb and missile is becoming increasingly wide, which brings threat to our important establishments. An effective method to counterwork these optoelectroniclly guided weapons is to destroy their optic system or optoelectronic sensor by high power laser weapon. The first important problem in this method is how to locate these weapon's optic system accurately, however, conventional ways to locate the target such as radar and infrared technology can not satisfy the need of high precision. It's a perfect way to locate the optic system accurately by the image which produced by cat's eye effect of the optic system and acquired by CCD detector. By this way, Accurately Guided System based on cat's eye effect locates the target's optic system precisely beyond a long distance, and implements the guide for high power laser beam. The main works in this thesis were as follows.1. Accurately Guided System based on cat's eye effect was introduced, the function and requirement of each function blocks in this system were analysed and the work flow of the entire system was expounded.2. According to the traits of the cat's eye echo image, several tracking algorithms for the echo's beam spot were compared and centroid algorithm was chosen by the result of compare. Then, with the image sequence of cat's eye echo, the simulation of centroid algorithm was done by using Matlab. The result supplied theoretical basis and simulation validation for the tracking algorithm in the video tracker in Accurately Guided System.3. The micro-servo controller of Accurately Guided System was designed according to the function and the requirement of other function blocks, it's function and design flow were shown in detail.4. The control experiment was done by using the micro-servo controller and reflected lens, then the experiment data was analysed. Finally, the demo experiment of Accurately Guided System was completed by combined the CCD detector, video tracker, micro-servo controller, micro-servo reflected lens.