Performance of Different Low-cost GNSS/INS Land Systems

M. De Agostino

Abstract:	This work aims to study the potential effect of GNSS/INS integrations of different quality sensors, in order to establish the accuracy that a generic low-cost configuration can have compared to a traditional configuration. Two loosely-coupled integration algorithms, specially calibrated for low cost GNSS and INS data, are described in the first part of the paper. In addition, a new algorithm called Back-Propagation Smoother is presented for the first time. In the second part the results obtained using these algorithms are shown considering four different scenarios, in order to analyze the behavior of land survey systems, with a cost ranging from € 65,000 to € 5,000. These tests have been conducted on the study of the trajectories performed in an open-sky environment, as well as on the comparison of the solutions when artificial cycle slips of different lengths were created.
Published in:	Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009) September 22 - 25, 2009 Savannah International Convention Center Savannah, GA
Pages:	3064 - 3074
Cite this article:	De Agostino, M., "Performance of Different Low-cost GNSS/INS Land Systems," Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009), Savannah, GA, September 2009, pp. 3064-3074.
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