摘要
提出了一种北斗卫星导航系统BDS长距离相对定位方法。在该方法的观测量随机模型中,考虑了BDS的GEO卫星伪距观测量中的系统性多路径变化趋势项的影响;并采用基于非组合观测值的DSOP(Double Station Observation Processing)方法进行数据解算。分别对BDS单系统和BDS/GPS组合相对定位解算结果进行了分析,实验结果都表明采用该方法能够显著提高定位结果的收敛速度。
In this paper, a novel method for BDS based relative positioning over long baseline is proposed. The in- fluence of systematic multipath variation is considered in the observation stochastic model. And the Double Station Observation Processing (DSOP) method that directly uses undifferenced observation is used for relative positioning estimation. By analyzing the positioning result of BDS only solution and BDS/GPS combined solution, the distinct improvement in convergence speed is demonstrated.
出处
《测绘科学技术学报》
CSCD
北大核心
2016年第2期121-126,共6页
Journal of Geomatics Science and Technology
基金
国家自然科学基金项目(41274045
41574010)
关键词
GEO卫星
多路径效应
小波变换
相对定位
随机模型
北斗卫星导航系统
GEO satellite
multipath effect
wavelet transform
relative positioning
stochastic model
BeiDounavigation satellite system(BDS)