000			00921cam a2200169 4500
100	1		_aBIAN Shaofeng
700			_aJIN Jihang
700			_aFANG Zhaobao
245			_aThe Beidou satellite positioning system and its positioning accuracy / _cShaofeng Bian, Jihang Jin, Zhaobao Fang
260			_c2005
520			_aBeidou is the Chinese satellite navigation system. The system is two dimensional and provides regional coverage; it became fully operational in early 2004. This paper briefly describes the constellation and the mathematical model of the Beidou system. Accuracy tests were done and results compared with GPS data. This paper notes that a new three-dimensional system called COMPASS is currently at the research stage.
650			_aCHINA _xSATELLITE NAVIGATION SYSTEMS
650			_aBEIDOU
690			_aChina
773			_aNavigation : _gVol 52 No 3, Fall 2005, pp.123-129 (43)
945			_i19753-1001 _rY _sY
999			_c5746 _d5746