光学精密工程2012，Vol.20Issue(2)：270-276,7.DOI:10.3788/OPE.20122002.0270
潜望镜式卫星光通信终端的CCD粗跟踪
Coarse tracking of periscope-type satellite optical communication terminals
摘要
Abstract
Many small aperture satellite optical communication terminals utilize a periscope as the Coarse Pointing Appliance(CPA), however, the model of coarse tracking arithmetic becomes much complex since the optic structure of the periscope-type CPA varies with the angle of attitude in the CPA . To improve the tracking accuracy of the CPA, this paper researches coarse tracking arithmetic of periscope-type satellite optical communication terminals. Based on the optical matrix method, a matrix model with geometric optics for tracking in the periscope-type inter-satellite optical communication terminals was established. After obtaining the CCD-based angle measuring model, an automatic tracking model of the CPA was derived to implement the fast tracking for the target beams. A test was performed to testify the arithmetic. The test results prove that the tracking arithmetic can express the configuration of optical system exactly, and can process the information of locality from CCD accurately. The average tracking accuracy is less than 10 μrad. The test results also show that the tracking model can meet the requirements of the satellite optical communication. The method proposed in this paper would supply some helps for similar optical study.关键词
卫星光通信/潜望镜/电荷耦合器件(CCD)/测角算法/瞄准、捕获、跟踪(PAT)系统Key words
inter-satellite optical communication/ periscope (Charge Coupled Device (CCD)/ angle detection algorithm/ pointing, acquisition,tracking (PAT) system分类
信息技术与安全科学引用本文复制引用
谭立英,吴世臣,韩琦琦,马晶..潜望镜式卫星光通信终端的CCD粗跟踪[J].光学精密工程,2012,20(2):270-276,7.基金项目
国家自然科学基金资助项目(No.10904026) （No.10904026）
