Cycle Slip Detection and Repair for Dual-Frequency LEO Satellite GPS Carrier Phase Observations with Orbit Dynamic Model Information
Cycle Slip Detection and Repair for Dual-Frequency LEO Satellite GPS Carrier Phase Observations with Orbit Dynamic Model Information
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具有轨道动态模型信息的双频 LEO 卫星 GPS 载波相位观测的周跳检测和修复
DOI:
10.3390/rs11111273
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发表时间:
2019-05
期刊:
影响因子:
5
通讯作者:
Xu Xinyu
中科院分区:
文献类型:
--
作者:
Wei Hui;Li Jiancheng;Zhang Shoujian;Xu Xinyu
Cycle slip detection and repair are crucial for precise GPS-derived orbit determination of the low-Earth orbit (LEO) satellites. We present a new approach to detect and repair cycle slips for dual-frequency LEO satellite GPS observations. According to Newton’s equation of motion, the second-order time difference of the LEO satellite’s position (STP) is only related to the sampling interval and the satellite’s acceleration, which can be precisely obtained from the known orbit dynamic models. Then, several kinds of second-order time-difference geometry-free (STG) phase combinations, taking full advantage of the correlation between the satellite orbit variations and the dynamic model, with different level of ionospheric residuals, are proposed and adopted together to detect and fix cycle slips. The STG approach is tested with some LEO satellite GPS datasets. Results show that it is an effective cycle slip detection and repair method for LEO satellite GPS observations. This method also has some important features. Firstly, the STG combination is almost independent of the pseudorange. Secondly, this method is effective for LEO satellites, even in real-time application. Thirdly, this method is suitable for ground-based GPS receivers if we know the acceleration of the receivers.
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DOI:
10.1007/978-3-642-58351-3
发表时间:
2000
期刊:
--
影响因子:
--
作者:
O. Montenbruck;E. Gill
通讯作者:
O. Montenbruck;E. Gill
影响因子:
2.6
作者:
J. van den Ijssel;J. Encarnação;E. Doornbos;P. Visser
通讯作者:
J. van den Ijssel;J. Encarnação;E. Doornbos;P. Visser
DOI:
--
发表时间:
1982
期刊:
--
影响因子:
--
作者:
R. Hatch
通讯作者:
R. Hatch
影响因子:
4.4
作者:
Jäggi, A;Hugentobler, U;Beutler, G
通讯作者:
Beutler, G
影响因子:
4.4
作者:
Li, Min;Li, Wenwen;Liao, Mi
通讯作者:
Liao, Mi