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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50039

Title: Barrier Method for GPS Multipath Estimation
Authors: He-Sheng Wang
Contributors: 國立臺灣海洋大學:通訊與導航工程系
Keywords: Barrier Method
Global Positioning System (GPS)
Interior-Point Optimization
Multipath Mitigation
Non-Line-of-Sight (NLOS)
Date: 2012-11
Issue Date: 2018-09-11T08:14:25Z
Publisher: Applied Mathematical Science
Abstract: Abstract: In this paper, a barrier method for GPS positioning and multipath mitigation is
proposed. The present method can effectively eliminate the NLOS (non-line-ofsight)
delay errors and is also able to improve the location accuracy of a satellite
navigation receiver. A constrained WLS (weighted least-squares) estimator is derived
based on the proposed algorithm, which is able to properly estimate and
eliminate the multipath error contained in each satellite’s pseudorange. In our experimental
result, it is demonstrated that the proposed estimator can compute the
coordinate of a user location in an accurate fashion after estimating and removing
the measurement biases. This is done by suitably choosing the barrier functions.
The proposed method is well suitable in the positioning domain in contrast with
traditional GPS multipath mitigation methods which usually apply in the signalprocessing
domain. Furthermore, it can be used to identify the NLOS signal
where the LOS signal may not present in the received signal.
Relation: 6(123) pp.6147 - 6159
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50039
Appears in Collections:[通訊與導航工程學系] 期刊論文

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