摘要
在分析Blewitt方法的基础上,加入一种新的方法共同探测周跳。新方法将无电离层组合作为基本观测值,对其进行星间差分,差分结果消除了电离层延迟和接收机钟差的影响,而且差分后的组合观测值具有良好的光滑性,有利于周跳的探测。实验证明,3种方法共同使用可以更准确地探测出周跳发生的位置。
On the basis of the theory of Blewitt,a new method is introduced.The new method uses the ionosphere-free combination LC.Differencing LC data between pairs of satellites is not effective to the ionospheric delay and receiver clock variations.Therefore it is useful for cycle slip detection.The wide-lane combination,the ionospheric combination and satellite difference of the ionosphere-free combination are all used to detected cycle slip.The results show that the combination of the three methods can accurately detect cycle slip.
出处
《武汉大学学报(信息科学版)》
EI
CSCD
北大核心
2010年第6期687-690,共4页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目(2007AA12Z345)
关键词
周跳探测
无电离层组合
星间差分
cycle slip
ionosphere-free combination
satellite difference