摘要
分析了轨道预测跟踪(OPT)与传统步进跟踪模式的跟踪方法及原理。在某限动站的实际测试应用表明,OPT模式能够改善测角数据的有效性,对机械结构的磨损也比较小,同时对于超过10°的大倾角卫星也能够满足跟踪精度要求。系统的指向精度提高了一倍,跟踪精度从0.0318°提高到了0.023°。分析结果表明,相对于传统步进跟踪模式,OPT模式具有明显优势。
The tracking method and theory of Orbit Prediction Track （OF＇T） and step tracking mode is analyzed. Practical application and tests of a Limited Motion Antenna （LMA） illustrate that OPT mode can increase the validity of angle measuring data, decrease the wear and tear on the mechanical structure. At the same time, the accuracy can also meet the requirements for more than 10 degrees inclined satellite. The pointing accuracy of using OPT mode doubles that of using step tracking mode, and the tracking accuracy is improved from 0.0318 to 0. 023 degrees. The analysis results show that OPT mode has obvious advantages compared with the traditional step tracking mode.
出处
《电讯技术》
北大核心
2010年第6期75-79,共5页
Telecommunication Engineering
关键词
限动天线
轨道预测跟踪
步进跟踪
跟踪精度
指向精度
limited motion antenna （ LMA ）
orbit prediction track （OPT）
step tracking
tracking accuracy
pointing accuracy
