| 一种基于TurboEdit改进的GPS双频观测值周跳探测方法 |
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| 引用本文： | 王振杰, 聂志喜, 欧吉坤. 一种基于TurboEdit改进的GPS双频观测值周跳探测方法[J]. 武汉大学学报 ( 信息科学版), 2014, 39(9): 1017-1021. DOI: 10.13203/j.whugis20130021 |
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| 作者姓名： | 王振杰 聂志喜 欧吉坤 |
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| 作者单位： | 1 中国石油大学(华东;地球科学与技术学院,山东 青岛,266580;2 中国科学院测量与地球物理研究所大地测量与地球动力学国家重点实验室,湖北 武汉,430077 |
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| 基金项目： | 国家自然科学基金资助项目(41374008,41074013,41174015);国家自然科学基金重点资助项目(41231064);中央高校基本科研业务费专项资金资助项目(14CX06073A)~~ |
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| 摘 要： | 目的 针对TurboEdit方法的局限性,提出了一种改进的GPS双频观测值周跳探测方法———两步法。该方法首先基于MW(Melborne-Wubbena)组合滑动前后向窗口来进行宽巷周跳探测,然后用经过宽巷周跳修正的电离层残差(phase ionospheric residual,PIR)组合观测值,基于一阶差商滑动窗口来探测L1载波上的周跳。实验结果表明,此方法能有效抑制噪声,在小周跳探测方面较TurboEdit方法具有优越性,并且能探测出两个载波上同时发生周跳的情况。
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| 关 键 词： | GPS 周跳探测 MW 电离层残差(PIR) 两步法 滑动窗口 |
| 收稿时间： | 2013-04-09 |
| 修稿时间： | 2014-09-05 |
An Improved Cycle Slip Detection Based on Turbo EditMethod for Dual-frequency GPS Receiver |
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| WANGZhenjie, NIE Zhixi, OU Jikun. An Improved Cycle Slip Detection Based on Turbo EditMethod for Dual-frequency GPS Receiver[J]. Geomatics and Information Science of Wuhan University, 2014, 39(9): 1017-1021. DOI: 10.13203/j.whugis20130021 |
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| Authors: | WANGZhenjie NIE Zhixi OU Jikun |
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| Affiliation: | 1School of Geosciences,China University of Petroleum,Qingdao 266580,China;2State Key Laboratory of Geodesy and Earth’s Dynamics,Institute of Geodesy & Geophysics of CAS,Wuhan 430077,China |
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| Abstract: | Objective Considering the limitations of TurboEdit,an improved cycle-slip detection method namedthe two-step method is proposed for dual-frequency GPS receivers.Firstly,the new method detectswide-lane cycle slips based on test values computed from a forward-backward moving window for MW(Melborne-Wubbena)combination observations,and then detects cycle slips in the carrier phase L1based on the check conditions extracted from a moving window of the first-order difference quotient ofPIR(phase ionospheric residual)combination observations which have been removed wide-lane cycleslips.The experimental results show that the new method can effectively suppress noise,and superiorto TurboEdit for detecting small cycle slips.It can also explore when cycle-slips exist in both two car-rier phases. |
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| Keywords: | GPS cycle-slip detection MW PIR two-step method moving window |
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