Corpus ID: 16321224

How good is Assisted GPS

  title={How good is Assisted GPS},
  author={B. Li and Jiahuang Zhang and P. Mumford and A. Dempster},
Assisted GPS (A-GPS) is being increasingly recognised by the public, users expecting to have a better performance of the A-GPS enabled devices than the conventional GPS receivers. This paper reported the evaluation of several A-GPS enabled receivers using a GPS signal generator and a specifically developed software. Under ideal conditions, several different scenarios were created to test the devices. Time To First Fix (TTFF) and positioning accuracy were the two aspects of most interest. The… Expand

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  • 2005
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  • ublox
  • 2009
G5-X-07036-P1, available at http://www.ublox .com ublox
  • ANTARIS®4 GPS Modules System Integration Manual (SIM), section 4.5.4 Aiding/Assisted GPS (A-GPS)
  • 2007
Jupiter 32 Data Sheet, // SiRF Technology (2007) GSCi-5000 Aided Evaluation Kit User Guide
  • Navman
  • 2007
Navstar Global Positioning System Interface Specification, IS-GPS-200
  • Navstar GPS Joint Program Office
  • 2004
ANTARIS Positioning Engine Protocol Specification
  • ublox
  • 2003
ANTARIS® 4 GPS Modules,
  • LEA- 4x_Data_Sheet (GPS.G4-MS4-06143).pdf
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