长基线双频GPS动态测量中的周跳修复算法  

Cycle Slip Recovery Method for Long-Baseline Dual-Frequency GPS Kinematic Surveying

作　　者：何海波 郭海荣 王爱兵 张锦军[2] 

机构地区：[1]61081部队 [2]92493部队

出　　处：《测绘科学技术学报》2010年第6期396-398,402,共4页Journal of Geomatics Science and Technology

摘　　要：利用双频观测值来讨论长基线动态测量中周跳修复问题,并在综合利用电离层残差法和伪距载波相位组合法的基础上,提出一种周跳修复法——最小二乘周跳搜索算法。该方法不需要经过最小二乘平差计算,就可以利用残差平方和搜索并确认周跳,计算速度快。利用多颗卫星的信息来修复周跳,可靠性高。实验分析表明,该方法可用于短基线或中长基线GPS动态测量的周跳修复。A cycle slip recovery method, least square cycle slip search method, has been proposed for long-baseline in dual-frequency GPS kinematic surveying, which is based on the residual ionospheric errors and the combined carrier phase observables and pseudoranges. The least square parameter estimation isn＇t needed and the summation of residual squares is only used for searching and identifying cycle slips. Then the calculation speed is accelerated. Additionally, all observations from observed satellites are used for recovering cycle slips, and then the reliability is very high. Test results indicated that the method can be used for cycle slip recovery for short-range, medium-range and long-range GPS kinematic surveying.

关 键 词：动态定位 长基线 模糊度恢复 周跳修复 最小二乘搜索 

分 类 号：P228[天文地球—大地测量学与测量工程]