摘要
本文提出一种提高北斗系统中低纬度无源定位精度的方法,利用星际间单差及高程约束来提高定位精度.与传统方法相比,新方法具有更高的精度及较好的稳定性,仿真结果表明,在中低纬度地区定位精度可达50～200 M.
A modified method for improving positioning precision of passive BeiDou system in middle-low latitude area is brought forward. The differences between satellites are used and the height constraint condition is added in the procedure of improving. Compared with the traditional method, a higher precision and better stability can be achieved. Based on the analysis of the emulation result, it can be shown that the positioning precision can reach 50~200 meters in middle-low latitude area.
出处
《测绘科学》
CSCD
北大核心
2007年第3期67-68,66,共3页
Science of Surveying and Mapping
关键词
北斗
无源定位
星际间差分
BeiDou
passive positioning
difference between satellites
