测绘科学技术学报2017，Vol.34Issue(2)：141-146,6.DOI:10.3969/j.issn.1673-6338.2017.02.006
BDS/Galileo紧组合系统间偏差估计与模糊度固定效果分析
Assessment of BDS/Galileo Inter-System Biases and Their Effect on Ambiguity Resolution
摘要
Abstract
With several satellite navigation systems transmitting signals on same frequencies,it is possible that processing GNSS observations from different systems by the tightly combination method.The tightly combination processing model among different systems was derived.Then based on zero and short baselines,the fractional intersystem biases(ISBs) between BDS and Galileo were estimated.Finally these ISBs were confirmed by a single-epoch relative positioning experiment.The results show that ISB can be forecasted in long term because it is very stable in time.Compared with the classical double difference model,for single-frequency RTK,the tightly combination model can significantly improve success rate of ambiguity resolution.关键词
北斗卫星导航系统/伽利略系统/相对定位/紧组合/系统偏差Key words
BDS/Galileo/relative positioning/tightly combination/ISB(Inter-System Bias)分类
天文与地球科学引用本文复制引用
周英东,柴洪洲,王敏,潘宗鹏..BDS/Galileo紧组合系统间偏差估计与模糊度固定效果分析[J].测绘科学技术学报,2017,34(2):141-146,6.基金项目
国家自然科学基金项目(41274045 （）
41574010 （）
41604013). （）
