A Multipath Processing Technology Based on Multiparameter-Combined Observation in GNSS | Zendy

Tao Zhou | Zendy; Baowang Lian | Zendy

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A Multipath Processing Technology Based on Multiparameter-Combined Observation in GNSS

Author(s) -

Tao Zhou,

Baowang Lian

Publication year - 2021

Publication title -

mobile information systems

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.346

H-Index - 34

eISSN - 1875-905X

pISSN - 1574-017X

DOI - 10.1155/2021/5574443

Subject(s) - pseudorange , gnss applications , multipath propagation , computer science , sidereal time , satellite , satellite navigation , remote sensing , global positioning system , real time computing , telecommunications , geology , physics , channel (broadcasting) , astronomy , astrophysics

In the Global Navigation Satellite System (GNSS), themultipath error affected bymany aspects is themain error source that affects satellite navigation, and it is difficult to establish a much more accurate model to analyze it. Based on the ground multipath reflection model, it firstly deeply studies the influence of GNSS satellite orbit parameters on multipath fading frequency and establishes a multipath signal model related to satellite orbit parameters. Secondly, the influence of carrier phase cycle slip, receiver clock adjustment, and GNSS satellite orbit on multiparameter(MP-) combined observations is analyzed in detail based on the measured data. Finally, aiming at the common phenomenon of code-carrier divergence in the Beidou system, the elevation-based pseudorange correction model and a sidereal filtering are built to correct the MP errors; experiments with measured data show that there is a fluctuation range reduction of 35.7% after sidereal filtering when the receiver reaches a steady state.

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