Preliminary Analysis of Precise Point Positioning Performance Using Correction of Tropospheric Delay Gradient
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
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.
Abstract
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.
참고문헌 (16)
- Berkay Bahadur, "PPPH: a MATLAB-based software for multi-GNSS precise point positioning analysis", GPS Solutions, 22(4), pp.1~10 (2018), Springer Science and Business Media LLC[DOI]
- Yoaz E. Bar‐Sever, "Estimating horizontal gradients of tropospheric path delay with a single GPS receiver", Journal of Geophysical Research: Solid Earth, 103(B3), pp.5019~5035 (1998), American Geophysical Union (AGU)[DOI]
- Sung H. Byun, "A new type of troposphere zenith path delay product of the international GNSS service", Journal of Geodesy, 83(3-4), pp.367~373 (2009), Springer Science and Business Media LLC[DOI]
- G. Chen, "Effects of atmospheric azimuthal asymmetry on the analysis of space geodetic data", Journal of Geophysical Research: Solid Earth, 102(B9), pp.20489~20502 (1997), American Geophysical Union (AGU)[DOI]
- Yujun Du, "Vulnerabilities and integrity of precise point positioning for intelligent transport systems: overview and analysis", Satellite Navigation, 2(1) (2021), Springer Science and Business Media LLC[DOI]
- Qiuying Guo, "Precision comparison and analysis of four online free PPP services in static positioning and tropospheric delay estimation", GPS Solutions, 19(4), pp.537~544 (2014), Springer Science and Business Media LLC[DOI]
- Kaplan, E. D., "Understanding GPS: Principles and Applications" (2006), Artech House Inc
- Jan Kouba, "Precise Point Positioning Using IGS Orbit and Clock Products", GPS Solutions, 5(2), pp.12~28 (2001), Springer Science and Business Media LLC[DOI]
- Xingxing Li, "Retrieving high‐resolution tropospheric gradients from multiconstellation GNSS observations", Geophysical Research Letters, 42(10), pp.4173~4181 (2015), American Geophysical Union (AGU)[DOI]
- Cuixian Lu, "Improving BeiDou real-time precise point positioning with numerical weather models", Journal of Geodesy, 91(9), pp.1019~1029 (2017), Springer Science and Business Media LLC[DOI]
- Michael MEINDL, "Tropospheric Gradient Estimation at CODE: Results from Global Solutions", Journal of the Meteorological Society of Japan. Ser. II, 82(1B), pp.331~338 (2004), Meteorological Society of Japan[DOI]
- Shin'ichi Miyazaki, "An impact of estimating tropospheric delay gradients on precise positioning in the summer using the Japanese nationwide GPS array", Journal of Geophysical Research: Solid Earth, 108(B7), pp.1~11 (2003), American Geophysical Union (AGU)[DOI]
- Kamil Teke, "Multi-technique comparison of troposphere zenith delays and gradients during CONT08", Journal of Geodesy, 85(7), pp.395~413 (2011), Springer Science and Business Media LLC[DOI]
- Yan Xu, "Influence of meteorological data and horizontal gradient of tropospheric model on precise point positioning", Advances in Space Research, 56(11), pp.2374~2383 (2015), Elsevier BV[DOI]
- Zumberge, J. F., "Precise point positioning for the efficient and robust analysis of GPS data from large networks", Journal of Geophysical Research : Solid Earth, 102, pp.5005~5017 (1997)[DOI]
- Florian Zus, "Improving GNSS Zenith Wet Delay Interpolation by Utilizing Tropospheric Gradients: Experiments with a Dense Station Network in Central Europe in the Warm Season", Remote Sensing, 11(6), pp.674~ (2019), MDPI AG[DOI]