Performance Analysis of a Satellite-Based Ionosphere Model for WADGPS under Disturbed Ionosphere Condition
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초록
The satellite-based ionospheric model consists of local first-order plane function parameters for individual satellites and provides excellent accuracy in the flat ionospheric environment of the Korean Peninsula. This paper analyzes the performance of such model under the rapid changes in the ionosphere. Rapid changes in the ionosphere were observed in Korea from September to October 2014, and a satellite-based ionosphere model was applied to Wide Area Differential GPS (WADGPS) to analyze the navigation performance and the performance of estimating ionospheric delay errors. After processing the test data, it was confirmed that there was a deterioration in navigation performance and extrapolation performance in low-latitude areas and analyzed the cause.
Abstract
The satellite-based ionospheric model consists of local first-order plane function parameters for individual satellites and provides excellent accuracy in the flat ionospheric environment of the Korean Peninsula. This paper analyzes the performance of such model under the rapid changes in the ionosphere. Rapid changes in the ionosphere were observed in Korea from September to October 2014, and a satellite-based ionosphere model was applied to Wide Area Differential GPS (WADGPS) to analyze the navigation performance and the performance of estimating ionospheric delay errors. After processing the test data, it was confirmed that there was a deterioration in navigation performance and extrapolation performance in low-latitude areas and analyzed the cause.
참고문헌 (6)
- Blanch, J., "Using Kriging to bound satellite ranging errors due to the ionosphere", Ph.D., pp.2003
- Chao, Y.-C., "Real Time Implementation of the Wide Area Augmentation System for the Global Positioning System with an Emphasis on Ionospheric Modeling", Ph.D., pp.1997
- Kaplan, E. D., "Understanding GPS: Principles and Applications" (2006), Artech House
- 소형민, "Performance Analysis of WADGPS System for Improving Positioning Accuracy", Journal of Positioning, Navigation, and Timing, 5(1), pp.21~28 (2016), 사단법인 항법시스템학회[DOI]
- 소형민, "Test Results of WADGPS System using Satellite-based Ionospheric Delay Model for Improving Positioning Accuracy", Journal of Positioning, Navigation, and Timing, 5(4), pp.213~219 (2016), 사단법인 항법시스템학회[DOI]
- A study on GNSS ionospheric delay estimation for extending the coverage of WADGPS, "Stanford University", Stanford University, ~ (2015)