摘要
捕获、跟踪、对准(ATP)系统是自由空间光通信(FSO)系统中一项关键技术。给出了基于位置敏感探测器(PSD)的ATP系统实现方案;并针对PSD探测精度受暗电流和背景噪声影响较大的问题,设计了一套调制检测方案并结合卷积算法实现整个系统跟踪精度的提高。
Acquisition, tracking and pointing（ATP） subsystem is one of the key techniques in the free space optical communication（FSO）. In this paper, the whole scheme of ATP system based on position sensitive detection （PSD） is presented. Besides, a design of modulation combined with convolution is adopted to eliminate the affection of background light and dark current of PSD and the performance of the ATP system is improved.
出处
《光电子技术》
CAS
2008年第3期180-183,共4页
Optoelectronic Technology
基金
江苏省软件和集成电路专项经费基金:苏信软[2003]117-14
南京市科技人才创新创业基金(200502041)
