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Novel Compensation Method of Positioning Error for LBS  

Park, Young Sik (광운대학교 전자융합공학과 유비쿼터스시스템연구실)
Hwang, Yu Min (광운대학교 전자융합공학과 유비쿼터스시스템연구실)
Kim, Jin Young (광운대학교 전자융합공학과 유비쿼터스시스템연구실)
Publication Information
Journal of Satellite, Information and Communications / v.8, no.2, 2013 , pp. 62-67 More about this Journal
Abstract
Recently, users have been receiving LBS(Local Based Service) which provides various services. The LBS uses positioning information from satellites with using GPS(Global Positioning System). However, due to satellite signal's characteristics which are reflection and refraction in urban areas, users get unexpected positioning information error, expecially if there are so many tall buildings in a small area. To solve this problem, this paper offers a post-processing algorithm. It is consisted of users' direction vectors and positioning information. The positioning information with error is designed to be put on the direction vector. Through a car driving test in urban areas, we've got 11.1m(43%) improved result and demonstrated the superiority of its algorithm.
Keywords
Global Positioning System; Global Navigation Satellite System; Location based service; Direction Vector; Dilution of Precision;
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