Errors analysis of new method to generate UTC parameters for BDS

All satellite navigation systems generate their UTC parameters by direct time comparison between their system times and UTC(K) via TWSTFT or common-view. The timing accuracy of these methods is several nanoseconds. But they have the characteristics of complicated and expensive devices and limited us...

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Bibliographic Details
Published in2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) pp. 478 - 482
Main Authors Dandan, Li, Longxia, Xu, Feng, Zhu, Bo, Li, Xiaohui, Li
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2017
Subjects
BeiDou Navigation Satellite System(BDS)
Calibration
Delays
errors analysis
Ions
Receivers
Satellite broadcasting
Satellite navigation systems
time bias
UTC parameters
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Summary:All satellite navigation systems generate their UTC parameters by direct time comparison between their system times and UTC(K) via TWSTFT or common-view. The timing accuracy of these methods is several nanoseconds. But they have the characteristics of complicated and expensive devices and limited users. Considering the unique constellation of BDS, a new method for generating UTC parameters is proposed. Its principle is explained and the main errors are analyzed. Values of these errors are calculated by carrying out correlative experiments. The results show users' residual satellite ephemeris errors are within 1 ns and residual ionospheric delay correction errors are within 2.5 ns and tropospheric delay correction errors are less than 0.17 ns and prediction errors of UTC parameters are within 4 ns except individual satellites and receivers relative calibration precision is 1.5 ns after calibrated by reference station's receivers.
DOI:10.1109/ICEMI.2017.8265858