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Sensors 2014, 14(8), 13661-13678; doi:10.3390/s140813661

A Novel Optimal Configuration form Redundant MEMS Inertial Sensors Based on the Orthogonal Rotation Method

Marine Navigation Research Institute, College of Automation, Harbin Engineering University, Harbin 150001, China
LASSENA Laboratory, Ecole de Technologie Superieure, 1100 Notre-Dame Street West, Montreal, QC H3C 1K3, Canada
Author to whom correspondence should be addressed.
Received: 22 May 2014 / Revised: 20 July 2014 / Accepted: 22 July 2014 / Published: 29 July 2014
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In order to improve the accuracy and reliability of micro-electro mechanical systems (MEMS) navigation systems, an orthogonal rotation method-based nine-gyro redundant MEMS configuration is presented. By analyzing the accuracy and reliability characteristics of an inertial navigation system (INS), criteria for redundant configuration design are introduced. Then the orthogonal rotation configuration is formed through a two-rotation of a set of orthogonal inertial sensors around a space vector. A feasible installation method is given for the real engineering realization of this proposed configuration. The performances of the novel configuration and another six configurations are comprehensively compared and analyzed. Simulation and experimentation are also conducted, and the results show that the orthogonal rotation configuration has the best reliability, accuracy and fault detection and isolation (FDI) performance when the number of gyros is nine. View Full-Text
Keywords: MEMS; redundancy configuration; reliability; navigation accuracy; FDI MEMS; redundancy configuration; reliability; navigation accuracy; FDI

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Cheng, J.; Dong, J.; Landry, R.J.; Chen, D. A Novel Optimal Configuration form Redundant MEMS Inertial Sensors Based on the Orthogonal Rotation Method. Sensors 2014, 14, 13661-13678.

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