A Multipath Processing Technology Based on Multiparameter-Combined Observation in GNSS
TLDR
In this article, the influence of GNSS satellite orbit parameters on multipath fading frequency and established a multipath signal model related to satellite orbital parameters for the ground multipath reflection model.Abstract:
In the Global Navigation Satellite System (GNSS), the multipath error affected by many aspects is the main 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.read more
Citations
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Proceedings ArticleDOI
Code-carrier divergence threshold selection algorithm
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Proceedings ArticleDOI
Code-carrier divergence threshold selection algorithm
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TL;DR: In this article , a code-deviation-based threshold selection algorithm is proposed, firstly, a codedeviation threshold calculation model is given, a threshold selection method based on maximum likelihood estimation is derived, a small amount of abnormal data is eliminated by the box plot method, and then the mean and standard deviation of the overall data are estimated by the maximum likelihood estimator.
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An Improved Adaptive Simulated Annealing Particle Swarm Optimization Algorithm for ARAIM Availability
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Observation System Optimization of Offshore Acoustic Exploration for Estimating Submarine Geological Structures via Directivity Analysis
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References
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BeiDou satellite-induced code pseudorange variations: diagnosis and therapy
Lambert Wanninger,Susanne Beer +1 more
TL;DR: A correction model and correction parameters are developed and determined in order to accommodate symptoms of code pseudorange variations of the Chinese GNSS BeiDou which are elevation-dependent when observed by receiving antennas on the earth’s surface.
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Model Predictive Based Unscented Kalman Filter for Hypersonic Vehicle Navigation With INS/GNSS Integration
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Joint Spatiotemporal Multipath Mitigation in Large-Scale Array Localization
Yunlong Wang,Ying Wu,Yuan Shen +2 more
TL;DR: It is proved the asymptotic spatial orthogonality of large-scale multiple-input multiple-output (MIMO) localization with general non-orthogonal waveforms, showing that the multipath effects will vanish when the number of transmitter or receiver antennas goes large.
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