Presentation	2004/1/7 Improvement in positioning accuracy of GPS receiver (Mobile Multimedia Communications) Kenichi KOIKE,
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Abstract(in English)	Horizontal positioning accuracy of GPS (Global Positioning System) receiver is about 10m in a stand-alone positioning. But it sometimes degenerates about 100m under multi-path surroundings like downtown (e. g. Shinjuku Tokyo). The proposed algorithm gives priority to velocity to solve the problem where the positioning accuracy is degraded under multi-path surroundings, based on findings that accuracy of calculated velocity exceeds that of calculated position in such an environment. In this algorithm, the position is derived from calculated position and the predicted position which is computed by using calculated velocity. Field tests confirmed that the positioning accuracy is improved.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	GPS / multi-path
Paper #	ITS2003-48,MoMuC2003-92
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Conference Information
Committee	MoMuC
Conference Date	2004/1/7(1days)
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Paper Information
Registration To	Mobile Multimedia Communications(MoMuC)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Improvement in positioning accuracy of GPS receiver (Mobile Multimedia Communications)
Sub Title (in English)
Keyword(1)	GPS
Keyword(2)	multi-path
1st Author's Name	Kenichi KOIKE
1st Author's Affiliation	Matsushita Electric Industrial Co., Ltd.()
Date	2004/1/7
Paper #	ITS2003-48,MoMuC2003-92
Volume (vol)	vol.103
Number (no)	544
Page	pp.pp.-
#Pages	6
Date of Issue