A TECR Cycle-slip Processing Algorithm Based on Data Quality Analysis

ZHOU Haitao; HUANG Lingyong; WANG Yupu; WANG Ning; LI Linyang; LV Zhiping

doi:10.13203/j.whugis20160037

Volume 43 Issue 6

Jun. 2018

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Geomatics and Information Science of Wuhan University > 2018 > 43(6): 879-886, 892. > DOI: 10.13203/j.whugis20160037

ZHOU Haitao, HUANG Lingyong, WANG Yupu, WANG Ning, LI Linyang, LV Zhiping. A TECR Cycle-slip Processing Algorithm Based on Data Quality Analysis[J]. Geomatics and Information Science of Wuhan University, 2018, 43(6): 879-886, 892. DOI: 10.13203/j.whugis20160037

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A TECR Cycle-slip Processing Algorithm Based on Data Quality Analysis

1.
Institute of Geographic Space Information, Information Engineering University, Zhengzhou 450052, China
2.
China Aerospace Surveying and Mapping Satellite Center, Beijing 102102, China

Funds:

The National Natural Science Foundation of China 41274015

the Open Research Fund of State Key Laboratory of Geo-information Engineering SKLGIE2015-M-1-6

the Open Research Fund of State Key Laboratory of Geo-information Engineering SKLGIE2015-M-2-1

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Author Bio:
ZHOU Haitao, postgraduate, specializes in the theory and method of GNSS data processing. E-mail: kingzht@qq.com
Corresponding author:
LV Zhiping, PhD, professor. E-mail: ssscenter@126.com
Received Date: January 27, 2016
Published Date: June 04, 2018

Graphical Abstract

Abstract

Abstract

The existing cycle-slip detection algorithm usually can not detect and repair cycle-slips correctly in the ionospheric activity phase or when magnetic storms happen, this paper proposes a new algorithm for the fitted residual of the ionospheric total electronic content(TEC) rate (TECR) based on data quality analysis. By analyzing the data quality of the fitted TECR residual, we determine the optimal fitted epoch count adaptively and with this fitted epochs count can obtain a fitted TECR to weaken the influence of ionospheric error effectively. In order to ensure that the repaired cycle-slip is correct, the repaired value is validated by search re-determination and TECR complementary detection. Measured data is used to validated this algorithm. The experimental results show that this algorithm can realize the zero-difference dynamic real-time cycle-slip detection and repair the ionospheric activity phase.

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