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A Calibration Method for Six-Accelerometer INS

Chao-Yu Hung and Sou-Chen Lee
International Journal of Control, Automation, and Systems, vol. 4, no. 5, pp.615-623, 2006

Abstract : The gyroscope free strap-down INS is composed only of accelerometers. Any gyroscope free INS navigation error is deeply affected by the accuracy of the sensor bias, scale factor, orientation and location error. However these parameters can be found by calibration. There is an important research issue about a multi-position calibration method in this paper. It provides a novel method to find the error parameters for the six-accelerometer INS. A superior simulation is shown that the multi-position calibration can find the specifications of a six-accelerometer INS in laboratory. From these parameters the six-accelerometer INS could apply in realistic navigation.

Keyword : Bias, INS, multi-calibration, scale factor, strap-down.

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