测绘科学技术学报2016，Vol.33Issue(6)：577-581,5.DOI:10.3969/j.issn.1673-6338.2016.06.006
一种北斗星源伪距波动改正方法
A Mitigation Method of Satellite-Induced Beidou Code Variation
摘要
Abstract
Beidou code pseudorange measurements reveal variations because of the influence of satellite-induced errors.This phenomenon is called Satellite-induced Code Variation.In order to analyse this phenomenon,improve the positioning precision and improve the positioning accuracy and reliability,code multipath combination is used to analyze IGS multi-frequency data.After that,an elevation-dependent and frequency-dependent polynomial mitigation model is established.The result shows that the code variation mainly remains in BDS IGSO and MEO satellites.It is rarely found in other systems.Test results of using the mitigation model show that the experiment station's RMS of multi-frequency MP measurement reduced by 41.3％,37.2％,and 11.4％.The correlation between the MP measurement and elevation is less than 0.01.关键词
北斗系统/伪距波动/多路径误差/改正模型/高度角Key words
Beidou system/code variation/multipath effect/mitigation model/elevation分类
天文与地球科学引用本文复制引用
蔡韧鸣,孙付平..一种北斗星源伪距波动改正方法[J].测绘科学技术学报,2016,33(6):577-581,5.基金项目
国家自然科学基金项目(41374027). （41374027）
