Highly-Integrated Solution for Ultra-fast Acquisition and Precise Tracking of Weak GPS and Galileo L1 Signals

C. Bürgi, E. De Mey, A. Orzati, A. Thiel

Abstract:	In this paper u-blox 5, a low-cost highly-integrated A-GPS and Galileo L1 receiver chip-set, is presented. u-blox 5 allows both ultra-fast acquisition and high-precision tracking even at the lowest signal power levels, and it is fully selfcontained, providing antenna input to position data output processing in a single tiny package. In oder to address the problem of weak-signal acquisition and weak-signal tracking for scenarios such as indoor and urban-canyon navigation, existing GPS receiver concepts have been analyzed and successfully combined with novel, ad hoc developed ones. Thanks to a careful system design together with a meticulous chip partitioning and technology choice, a very costand power-efficient implementation has been obtained, which can successfully address the needs of the vastly expanding consumer-navigation device markets.
Published in:	Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006) September 26 - 29, 2006 Fort Worth Convention Center Fort Worth, TX
Pages:	226 - 235
Cite this article:	Bürgi, C., De Mey, E., Orzati, A., Thiel, A., "Highly-Integrated Solution for Ultra-fast Acquisition and Precise Tracking of Weak GPS and Galileo L1 Signals," Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006), Fort Worth, TX, September 2006, pp. 226-235.
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