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Method of Differential Corrections Using GPS/Galileo Pseudorange Measurement for DGNSS RSIM
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 Title & Authors
Method of Differential Corrections Using GPS/Galileo Pseudorange Measurement for DGNSS RSIM
Seo, Ki-Yeol; Kim, Young-Ki; Jang, Won-Seok; Park, Sang-Hyun;
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 Abstract
In order to prepare for recapitalization of differential GNSS (DGNSS) reference station and integrity monitor (RSIM) due to GNSS diversification, this paper focuses on differential correction algorithm using GPS/Galileo pesudorange. The technical standards on operation and broadcast of DGNSS RSIM are described as operation of differential GPS (DGPS) RSIM for conversion of DGNSS RSIM. Usually, in order to get the differential corrections of GNSS pesudorange, the system must know the real positions of satellites and user. Therefore, for calculating the position of Galileo satellites correctly, using the equation for calculating the SV position in Galileo ICD (Interface Control Document), it estimates the SV position based on Ephemeris data obtained from user receiver, and calculates the clock offset of satellite and user receiver, system time offset between GPS and Galileo, then determines the pseudorange corrections of GPS/Galileo. Based on a platform for performance verification connected with GPS/Galileo integrated signal simulator, it compared the PRC (pseudorange correction) errors of GPS and Galileo, analyzed the position errors of DGPS, DGalileo, and DGPS/DGalileo respectively. The proposed method was evaluated according to PRC errors and position accuracy at the simulation platform. When using the DGPS/DGalileo corrections, this paper could confirm that the results met the performance requirements of the RTCM.
 Keywords
DGPS;DGNSS;Reference Station & Integrity Monitor (RSIM);RTCM;GPS/Galileo;
 Language
Korean
 Cited by
1.
멀티 GNSS 보정시스템을 위한 BeiDou 의사거리 보정기법,서기열;김영기;장원석;박상현;

한국정보통신학회논문지, 2015. vol.19. 10, pp.2307-2314 crossref(new window)
1.
Method of BeiDou Pseudorange Correction for Multi-GNSS Augmentation System, Journal of the Korea Institute of Information and Communication Engineering, 2015, 19, 10, 2307  crossref(new windwow)
 References
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Radio Technical Commission for Maritime Services (2006), RTCM Standard 10401.2 for Differential NAVSTAR GPS Reference Stations and Integrity Monitors (RSIM), RTCM Paper 221-2006-SC104-STD.

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G. Galluzzo et al (2014), "The Approach for the validation of Navigation and Timing Performance for Galileo Early Open Service", European Navigation Conference 2014.

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