New-generation BeiDou (BDS-3) experimental satellite precise orbit determination with an improved cycle-slip detection and repair algorithm

Hu, C, Wang, Q, Wang, Z and Moraleda, A 2018, 'New-generation BeiDou (BDS-3) experimental satellite precise orbit determination with an improved cycle-slip detection and repair algorithm', Sensors, vol. 18, no. 5, pp. 1-21.


Document type: Journal Article
Collection: Journal Articles

Title New-generation BeiDou (BDS-3) experimental satellite precise orbit determination with an improved cycle-slip detection and repair algorithm
Author(s) Hu, C
Wang, Q
Wang, Z
Moraleda, A
Year 2018
Journal name Sensors
Volume number 18
Issue number 5
Start page 1
End page 21
Total pages 21
Publisher MDPI AG
Abstract Currently, five new-generation BeiDou (BDS-3) experimental satellites are working in orbit and broadcast B1I, B3I, and other new signals. Precise satellite orbit determination of the BDS-3 is essential for the future global services of the BeiDou system. However, BDS-3 experimental satellites are mainly tracked by the international GNSS Monitoring and Assessment Service (iGMAS) network. Under the current constraints of the limited data sources and poor data quality of iGMAS, this study proposes an improved cycle-slip detection and repair algorithm, which is based on a polynomial prediction of ionospheric delays. The improved algorithm takes the correlation of ionospheric delays into consideration to accurately estimate and repair cycle slips in the iGMAS data. Moreover, two methods of BDS-3 experimental satellite orbit determination, namely, normal equation stacking (NES) and step-by-step (SS), are designed to strengthen orbit estimations and to make full use of the BeiDou observations in different tracking networks. In addition, a method to improve computational efficiency based on a matrix eigenvalue decomposition algorithm is derived in the NES. Then, one-year of BDS-3 experimental satellite precise orbit determinations were conducted based on iGMAS and Multi-GNSS Experiment (MGEX) networks. Furthermore, the orbit accuracies were analyzed from the discrepancy of overlapping arcs and satellite laser range (SLR) residuals. The results showed that the average three-dimensional root-mean-square error (3D RMS) of one-day overlapping arcs for BDS-3 experimental satellites (C31, C32, C33, and C34) acquired by NES and SS are 31.0, 36.0, 40.3, and 50.1 cm, and 34.6, 39.4, 43.4, and 55.5 cm, respectively; the RMS of SLR residuals are 55.1, 49.6, 61.5, and 70.9 cm and 60.5, 53.6, 65.8, and 73.9 cm, respectively. Finally, one month of observations were used in four schemes of BDS-3 experimental satellite orbit determination to further investigate the reliability and advantag
Subject Analytical Chemistry not elsewhere classified
Distributed Computing not elsewhere classified
Electrical and Electronic Engineering not elsewhere classified
Keyword(s) BDS-3 experimental satellites
Improved cycle-slip detection and repair algorithm
Improved methods
Normal equation stacking
Precise orbit determination
Step-by-step
DOI - identifier 10.3390/s18051402
Copyright notice © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
ISSN 1424-8220
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