大地测量与地球动力学2017，Vol.37Issue(11)：1173-1177,5.DOI:10.14075/j.jgg.2017.11.015
一种基于双频非差GNSS相位数据的周跳实时探测与修复方法
A New Algorithm of Cycle Slip Real-Time Detection and Repair Based on Un-Differenced Dual-Frequency GNSS Carrier Phase Data
摘要
Abstract
We propose a new method for cycle slip real-time detection and repair using un-differenced dual-frequency GNSS carrier phase observations,based on Melbourne-Wübbena linear combination and GeometryFree combination.In M-W combination,the combination of weighted according the satellite elevation and moving window averaging is recursively used to calculate the wide-lane ambiguity.Then,the second-order time-difference phase ionospheric residual is used in phase ionospheric residual method.This reduces the influence of ionospheric variations to enable the detection of cycle slips.When the cycle slips are detected,the search method is used to repair cycle slips.The proposed method is tested using static data and dynamic data,the sampling rates are 30 seconds and 1 second recursively.Further,we add some simulated cycle slips in these data,which include big cycle slip and small cycle slip.The results indicate that this method is effective for cycle slip real-time detection and repairing.关键词
周跳/MW组合/电离层残差组合/低高度角/移动窗口Key words
cycle slip/Melbourne-Wübbena linear combination/phase ionospheric residual method/low elevation of satellite/moving window分类
天文与地球科学引用本文复制引用
杨阳阳,刘宁,张永志..一种基于双频非差GNSS相位数据的周跳实时探测与修复方法[J].大地测量与地球动力学,2017,37(11):1173-1177,5.基金项目
China Postdoctoral Science Foundation,No.2016M592733 （）
Open Fund of State Key Laboratory of Geo-Information Engineering,No.SKLGIE2015-M-2-4 （）
Special Fund for Basic Scientific Research of Central Universities,No.310826151049.中国博士后科学基金(2016M592733) （2016M592733）
地理信息工程国家重点实验室开放基金(SKLGIE2015-M-2-4) （SKLGIE2015-M-2-4）
中央高校基本科研业务费专项(310826151049). （310826151049）
