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논문 기본 정보

자료유형
학술저널
저자정보
Bu-Gyeom Kim (Department of Aerospace Engineering and SNU-IAMD Seoul National University Seoul 08826 Korea) Changdon kee (Department of Aerospace Engineering and SNU-IAMD Seoul National University Seoul 08826 Korea)
저널정보
사단법인 항법시스템학회 Journal of Positioning, Navigation, and Timing Journal of Positioning, Navigation, and Timing 제12권 제2호
발행연도
2023.6
수록면
141 - 148 (8page)
DOI
10.11003/JPNT.2023.12.2.141

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초록· 키워드

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In this paper, impacts of tropospheric delay gradient correction on PPP positioning performance were analyzed. A correction for tropospheric delay error due to the gradient was created and applied using external data, and reference station data were collected on a sunny day and a rainy day to analyze the GPS only dual-frequency PPP positioning results. As a result, on the sunny day, the convergence time was about 35 minutes and the final 3D position error was 10 cm, regardless of whether the correction for the tropospheric delay error by the gradient was applied. On the other hand, on the rainy day, the 3D position error converges only when the correction was applied, and the convergence time was about 34 minutes. Furthermore, the final 3D position error was improved from 30 cm to 10 cm. In addition, the analysis of the PPP by reference station location on the rainy day showed that the PPP positioning performance was improved when the correction was applied to a user located in an area where the weather changes.

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