Improvement of GNSS Signal Acquisition Using Low-Cost Inertial Sensors

Damien Kubrak, Michel Monnerat, Geraldine Artaud, Lionel Ries

Abstract:	The following addresses the acquisition of pilot signals using inertial sensors. Increasing the sensitivity of the receiver is a goal quite hard to achieve as the local oscillator instability and the user motion may degrade significantly the acquisition process, especially when long coherent integration times are used. The paper present a sensor-aided acquisition algorithm which ails at taking benefit of an Inertial Navigation System to extend the coherent integration on pilot signals, and consequently increase the sensitivity of the receiver. A static and dynamic sensitivity of respectively 7.2 dBHz and 10.1 dBHz was found achievable on the data set collected in a real indoor environment.
Published in:	Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008) September 16 - 19, 2008 Savannah International Convention Center Savannah, GA
Pages:	2145 - 2155
Cite this article:	Kubrak, Damien, Monnerat, Michel, Artaud, Geraldine, Ries, Lionel, "Improvement of GNSS Signal Acquisition Using Low-Cost Inertial Sensors," Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), Savannah, GA, September 2008, pp. 2145-2155.
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