基于圆形轨道的卫星位置递推方法

摘要

卫星无源定位系统对目标进行定位时,用于定位的卫星位置与时差或相位差等信息可能不同步,无法进行定位,需要把定位信息统一到同一时刻.针对这一问题,提出了基于圆形轨道的卫星位置递推方法,把卫星位置信息同其它信息统一到同一时刻,然后进行定位.该方法比常用的直线轨道递推方法误差更小,准确度更高,对提高定位精度具有较大应用价值.%Positioning of an object by the passive location system of satellites may not be possible when the feasible positioning information of satellite location and TDOA or PDOA are not synchronized. To solve this problem, a satellite location recurrence technique based on circular orbit is put forward. Satellite location is synchronized with other poisoning information. Errors from the satellite location recurrence method based on circular orbit are smaller than that based on line orbit. The technique has higher precision and has great application value for improvement of positioning accuracy.