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Estimating Ambiguity and Using Model Weight To Improve the Positioning Accuracy of a Stand-alone Receiver

Ngoc Tan Truong 1 Ali Khenchaf 1 Fabrice Comblet 1
1 Lab-STICC_ENSTAB_MOM_PIM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : Basic positioning methods in GNSS receivers are based on code and carrier phase measurements. In this paper, the carrier phase measurements are considered. They are highly accurate, but limited with integer ambiguity, which is very important. This paper proposes an algorithm to resolve this problem. In addition, it shows the main factors that affect the accuracy of user position. To reduce the user's position errors, it eliminates the satellites with small evaluation angles and in the calculation, two weight models are proposed and applied. As compared to the positioning solution without weight, the positioning accuracy is improved by about 42.89 % with the SIGMA model and about 53.19 % with the exponential model.
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https://hal.archives-ouvertes.fr/hal-02434619
Contributor : Marie Briec <>
Submitted on : Friday, January 10, 2020 - 11:12:57 AM
Last modification on : Tuesday, April 13, 2021 - 5:42:02 PM

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  • HAL Id : hal-02434619, version 1

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Ngoc Tan Truong, Ali Khenchaf, Fabrice Comblet. Estimating Ambiguity and Using Model Weight To Improve the Positioning Accuracy of a Stand-alone Receiver. 13th European Conference on Antennas and Propagation, EuCAP 2019, Mar 2019, Krakow, Poland. pp.8739397. ⟨hal-02434619⟩

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