Error Analysis of Low-Cost MEMS-based Accelerometers for Land Vehicle Navigation

Minha Park and Yang Gao

Abstract:	Recent advances in Micro Electro Mechanical Systems (MEMS) based inertial sensors have pushed for the development of low-cost integrated navigation systems on single board for land vehicle navigation and guidance applications. For instance, the MEMS-based accelerometer products have already found wide applications and the successes are well recognized in micro sensor industries. As MEMS-based inertial sensors are increasingly being used for the development of future vehicular navigation systems, it is of significant importance to analyze the error behaviors of different sensor products and to develop more sophisticated mathematical modeling methods. This paper presents some background of MEMS inertial sensors and analyzes the performance characteristics of sensors designed for land vehicle application including stability performance in the time domain. The error analysis has been conducted in both time and frequency domains and special attention was paid to characterize the sensor’s error behaviors with respect to its stochastic variation. Two commercial MEMS based accelerometers were used in the tests. The stochastic variation characteristics of MEMS based accelerometers will be adopted in the development of appropriate optimal algorithm for the integration with other enabling systems such as GPS in the further research.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	1162 - 1170
Cite this article:	Park, Minha, Gao, Yang, "Error Analysis of Low-Cost MEMS-based Accelerometers for Land Vehicle Navigation," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 1162-1170.
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