摘要
提出了一种基于卫星导航RNSS/RDSS组合业务的三星定位算法,该算法是通过用户同时观测3个RNSS业务和1个RDSS业务伪距观测量,建立用户伪距观测方程组,再采用最小二乘法求解用户三维位置坐标和钟差,实现基于RNSS/RDSS组合业务伪距观测量的三星快速定位;通过理论推导,分析了伪距观测误差对用户定位精度影响。通过数据仿真试验,验证了实际三星定位组合星座和伪距观测噪声条件下的用户定位精度。
The paper put forward a tri-satellite quick positioning algorithm of generalized RNSS / RDSS system. According to the characteristics of generalized RNSS / RDSS system based on integrated RNSS and RDSS service,the algorithm accomplished user＇s tri-satellite quick positioning calculation adopting least squares techniques, through acquiring 3 RNSS and 1 RDSS pseudo-range observation quantity and correcting pseudo-ranges. The influence of pseudo-range measuring error toward accuracy of positioning was analyzed in theory. The accuracy of positioning was proved by experiment, under tri-satellite constellation and measuring noise conditions of compass at present,using emulation and observation data of RNSS ＋ RDSS pseudo-range.
出处
《兵器装备工程学报》
CAS
2016年第8期105-108,共4页
Journal of Ordnance Equipment Engineering
关键词
RNSS/RDSS组合业务
北斗搜救服务
三星定位算法
generalized RNSS/RDSS system
compass search and rescue service（SAR）
tri-satellite quick positioning algorithm
