Detection algorithm of ionospheric delay anomaly based on multi-reference stations for ionospheric scintillation
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
Radio waves including GPS signals, various TV communications, and radio broadcasting can be disturbed by a strong solar storm, which may occur due to solar flares and produce an ionospheric delay anomaly in the ionosphere according to the change of total electron content. Electron density irregularities can cause deep signal fading, frequently known as ionospheric scintillation, which can result in the positioning error using GPS signal. This paper proposes a detection algorithm for the ionosphere delay anomaly during a solar storm by using multi-reference stations. Different TEC grid which has irregular electron density was applied above one reference station. Then the ionospheric delay in zenith direction applied different TEC will show comparatively large ionospheric zenith delay due to the electron irregularity. The ionospheric slant delay applied an elevation angle at reference station was analyzed to detect the ionospheric delay anomaly that can result in positioning error. A simulation test was implemented and a proposed detection algorithm using data logged by four reference stations was applied to detect the ionospheric delay anomaly compared to a criterion.
Abstract
Radio waves including GPS signals, various TV communications, and radio broadcasting can be disturbed by a strong solar storm, which may occur due to solar flares and produce an ionospheric delay anomaly in the ionosphere according to the change of total electron content. Electron density irregularities can cause deep signal fading, frequently known as ionospheric scintillation, which can result in the positioning error using GPS signal. This paper proposes a detection algorithm for the ionosphere delay anomaly during a solar storm by using multi-reference stations. Different TEC grid which has irregular electron density was applied above one reference station. Then the ionospheric delay in zenith direction applied different TEC will show comparatively large ionospheric zenith delay due to the electron irregularity. The ionospheric slant delay applied an elevation angle at reference station was analyzed to detect the ionospheric delay anomaly that can result in positioning error. A simulation test was implemented and a proposed detection algorithm using data logged by four reference stations was applied to detect the ionospheric delay anomaly compared to a criterion.
참고문헌 (10)
- Dehel,T.F, "Observations of Ionospheric Walls of TEC During Geomagnetic Storms", Proceedings, ION (Institute Of Navigation) 61st annual meetings, 27-29 June (2005)
- IMO(International Maritime Organization), "Revised maritime policy and requirements for a future global navigation satellite system (GNSS)", Resolution A, 915(22) (2002)
- Kaplan, E.D., "Understanding GPS –Principles and Applications" (2006)
- Luo, M., "Assessment of Ionospheric impact on LAAS using WAAS supertruth data", Proceedings, ION (Institute Of Navigation) 58th annual meetings, 24-26 June, Albuquerque (2002)
- Misra,P., "Global Positioning System –Signal,Measurement and Performance" (2006)
- "Space Weather Prediction Center website of the US National Oceanic and Atmospheric Administration"[URL]
- Pullen, S., "LAAS ground facility design improvements to meet proposed requirements for category II", III operations, 2002, ~
- Seo, J., "Ionospheric scintillation effects on GPS receivers during solar minimum and maximum", International Beacon Satellite Symposium, 11-15 June, Boston (2007)
- Vollath, U., "Network RTK versus single base RTK – Understanding the error characteristics", Proceedings, ION (Institute Of Navigation), 24-27 Sept., Portland (2002)
- 유윤자, "태양 흑점활동이 측위오차에 미치는 영향: 태양폭풍 사례연구", 한국항해항만학회지, 35(6), pp.477~482 (2011), 한국항해항만학회