IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136

This article has now been updated. Please use the final version.

Selection of satellites based on the carrier phase lock indicator for enhanced RTK-GNSS
Ellarizza FredelucesNobuaki KuboTomohiro Ozeki
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JOURNAL FREE ACCESS Advance online publication

Article ID: 2023XBL0012

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Abstract

Real-time kinematic – global navigation satellite systems (RTK-GNSS) provide positions with centimeter error; however, performance in urban area is degraded by multipath error. Common approaches to mitigate multipath are satellite selection based on SNR values or classification of LOS and NLOS signals. In this study, carrier phase lock indicator and elapsed epoch when it is invalid was used to select satellites. Car experiment was done around Tokyo station for 1 hour. Results showed increased correct fix up to 275 epochs while wrong fix was maintained below 1% of the total fix data. Increased ratio values for ratio test were also observed.

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