摘要
基于双频组合技术,提出一种周跳自动探测和修复的新方法,即分段平均组合周跳自动修复法。该方法采用设置多组周跳检验量分别探测各检验量序列异常突变,然后以突变位置为分界点分段平均,最后组合成相应的方程组直接解算整周跳变。实验结果显示,应用该算法进行单GPS观测站相位数据周跳的自动探测和修复,可以显著提高数据预处理的效率和可靠性。
On the basis of dual-frequency combination technique a new approach called sub-average joint computation auto restoring method for the automatic detection and restoring of phase cycle slip is developed. The approach firstly applies multiple test observables to detect their sequence abnormal mutations, respectively, and then sets the mutation positions for the locations of the sub-average, lastly forms the equation group to compute the magnitude of the cycle slip. Experiments show that the application of the approach for cycle slip detection and repair of GPS phase data from single receiver can dramatically improve the efficiency and reliability of data pre-processing .
出处
《大地测量与地球动力学》
CSCD
北大核心
2009年第5期76-80,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(40674012)
矿山空间信息技术国家测绘局重点实验室开放基金(KLM200822)
关键词
GPS
载波相位
周跳
自动修复法
双频组合
GPS
carrier phase
cycle slip
auto restoring method
dual-frequency combination technique
作者简介
作者简介：阳仁贵，男，1972年生，副研究员，主要从事GPS快速定位定轨技术研究．E-mail：yangrg@asch．whigg．ac．on
