标题：Computer simulation and discussion of high accuracy laser's direction finding in real time
作者：Chen, WY; Chen, YZ
作者机构：[Chen, WY; Chen, YZ]Shandong Univ, Dept Opt, Shandong 250100, Peoples R China.
会议名称：Conference on 3-Dimensional Imaging and Laser-Based Systems for Metrology and Inspection III
会议日期：OCT 14-15, 1997
来源：THREE-DIMENSIONAL IMAGING AND LASER-BASED SYSTEMS FOR METROLOGY AND INSPECTION III
关键词：direction finding; laser beam; image matching; radiation center;; geometric center; envelope rectangle; maximum run length; binary image
摘要：On condition that CCD in used as the sensor, there are at least five methods can be used to realize laser's direction finding with high accuracy. They are: Image matching method, radiation center method, geometric center method, center of rectangle envelope method and center of maximum run length method. The first three can get the highest accuracy but working in real-time it is too complicated to realize and the cost in very expansive. The rest two can also get high accuracy, and it is not difficult to realize working in real time. By using a single-chip microcomputer and an ordinary CCD camera a very simple system can get the position information of a laser beam. The data rata is 50 times per second.