Pixel Subdivision Technology in Tracking System

摘要：

The APT (Acquisition, Pointing and Tracking) technology has become one of the key technologies in the laser communication system. Taking the intense background light, atmosphere turbulence, refraction into account, in order to increase the tracking precision, the paper puts forward the pixel subdivision algorithm to increase the acquisition accuracy from beacon light with CCD and the threshold centroid algorithm subdivision is the best method with high accuracy. As the light spot has great effect on the precision of subdivision, the position performance is analyzed by statistics and simulation, the results show that the position performance has its optimization when the light spot covers 3 or 4 pixels. In this system, the light spot is controlled in 3 or 4 pixels by defocus.

关键词： free-space laser communication APT centroid algorithm pixel subdivision

作者: ZHAI Xuhua ZHANG Hongtao ZANG Jingfeng SUN Fu

作者单位: Changchun University of Science and Technology Armor Technique Institute of PLA, 130022

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）