GLONASS卫星可见性的一种预测方法  

Prediction Method of Visibility of GLONASS Satellites

作　　者：刘晖[1] 王银锋[1] 张其善[1] 

机构地区：[1]北京航空航天大学电子工程系

出　　处：《北京航空航天大学学报》2000年第1期12-14,共3页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家重点科技计划资助项目!(9613020502)

摘　　要：基于GLONASS接收机研制的实践,提出了一种GLONASS卫星可见性的预测方法.根据GLONASS卫星的某一已知状态和GLONASS卫星的运行规律,计算GLONASS卫星的地心地固空间直角坐标,然后转换为以地面观测点为参考的站心极坐标,求出卫星的高度角,得出卫星对于地面用户的可见性.这种算法计算简便,准确度高。A visibility prediction method of GLONASS satellites is presented based on the developing experience of GLONASS receiver. Given a certain known status, the spatial rectangular coordinates of the predicted satellite are calculated according to the satellite's operating law. Then the coordinates are converted to topocentric coordinates referenced to the ground observing point. The elevation angle of the satellite is computed and the visibility is obtained. The whole deducing process is discussed in detail . The orbits prediction incorporates impacts of several imperfect forces.True GLONASS almanac are used to calculate the visibility and to verify the results. This method is easily to be applied and deserves high accuracy. It is valuable in GLONASS receiver research.

关 键 词：卫星轨道 预测 GLONASS接收机 可见性 卫星导航 

分 类 号：V412.41[航空宇航科学与技术—航空宇航推进理论与工程]