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http://dx.doi.org/10.6109/jkiice.2011.15.10.2059

Service Coverage Enhancement due to Output Power of Korean Land-based DGPS  

Kim, Young-Wan (군산대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.10, 2011 , pp. 2059-2064 More about this Journal
Abstract
The DGPS systems that is a GPS augmentation system were installed for ocean- and land-service. The ocean-based reference station of 11 site and the land-based reference station of 6 sites are operating for ocean- and land-service. Although the land-based reference stations provide the output power of 500W, the service shadow regions are occurred due to mountain lands and building area. In this paper, the service coverages for land-based reference stations are analyzed in conditions of output power enhancements of reference station. The service shadow areas are deduced from service coverages of land-based reference stations and ocean-based reference stations. The medium frequency-band wave propagation models are considered as DGPS wave propagation model. The service coverages are analyzed by considering the compensated ground surface-conductivity.
Keywords
DGPS; GPS augmentation system; DGPS service coverage;
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