BeiDou triple-frequency cycle-slip detection and repair based on geometry-free and ionosphere-free combination

doi:10.13474/j.cnki.11-2246.2020.0112

Bulletin of Surveying and Mapping ›› 2020, Vol. 0 ›› Issue (4): 58-62.doi: 10.13474/j.cnki.11-2246.2020.0112

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BeiDou triple-frequency cycle-slip detection and repair based on geometry-free and ionosphere-free combination

CUI Lilu^1,2, HE Qiong¹, ZOU Zhengbo³, XU Wenchao¹, JIANG Xueli¹, WEI Pengzhi⁴

1. School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China;
2. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
3. Key Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan 430071, China;
4. College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China

Received:2019-09-02 Revised:2019-10-20 Online:2020-04-25 Published:2020-05-08

Abstract

Abstract: View to the problem that the detection and repair accuracy of cycle slip under the strong ionospheric delay affects, the geometry-free and ionosphere-free combination has been constructed based on the characteristics of BeiDou triple-frequency data in this paper and the combination coefficients have been selected. Then, combined with MW combination and ionospheric residual method, the cycle slip test quantity is constructed to realize the cycle slip detection and repair of BDS measured data. In the process of experiment, this algorithm has been tested fully and effectively by setting different types of cycle slip. The experimental results show that this algorithm can detect all cycle slip, including insensitive ones,and repair them completely.

Key words: geometry-free, ionosphere-free, ionospheric delay, cycle slip detection, BeiDou triple-frequency

CLC Number:

P228.4

CUI Lilu, HE Qiong, ZOU Zhengbo, XU Wenchao, JIANG Xueli, WEI Pengzhi. BeiDou triple-frequency cycle-slip detection and repair based on geometry-free and ionosphere-free combination[J]. Bulletin of Surveying and Mapping, 2020, 0(4): 58-62.

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BeiDou triple-frequency cycle-slip detection and repair based on geometry-free and ionosphere-free combination

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