一种双频载波相位周跳探测与修复的方法

A Detection and Correction Method of Dual -frequency Carrier Phase Cycle Slips

为了获得高精度的导航定位结果，必须对载波相位观测值中的周跳进行快速准确地探测与修复。传统的多项式拟合探测周跳的方法只适用于较大周跳的探测，电离层残差法是较好的周跳探测方法之一，但是没有解决多值性问题，基于这些问题，在分析了多项式拟合法探测周跳和电离层残差法探测周跳的基础上，本文提出了联合多项式拟合宽巷组合观测值与电离层残差法探测周跳的方法。实例分析证明，该方法能够准确地探测并修复各种大小的周跳。

In order to obtain high accuracy positioning and navigation results with GPS, cycle - slip in carrier phase observations must be correctly and quickly detected and corrected. Traditional polynomial fitting method can only detect big cycle slips, and ionospheric residual is one of the best cycle - slip detection methods, but it cannot resolve the problem of multi - value. In order to resolve these problems, after analyzing the polynomial fitting and ionospheric residual cycle slip detection meth- od, a cycle - slip detection algorithm integrating the polynomial fitting wide lane combination observation and ionospheric residual method is proposed. The experimental results show that the method can detect and repair cycle slips correctly and effectively.