Gyro-free INS coarse alignment
https://doi.org/10.17285/0869-7035.2015.23.4.173-182
Abstract
For a stationary system, coarse alignment is used to initially determine the orientation of the INS by utilizing the Earth gravity and rotation vectors. Yet, a gyro-free INS has only accelerometers and hence cannot measure the Earth rotation vector and thus cannot deduce its yaw angle. In this paper, we formulate the coarsealignment procedure and derive error characteristics for a gyro-free system. In addition, a comparison between different configurations of accelerometers is being conducted.
About the Authors
E. Vaknin
Rafael Advanced Defense Systems Ltd.
Israel
Israel
I. Klein
Rafael Advanced Defense Systems Ltd.
Israel
Israel
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Review
For citations:
Vaknin E., Klein I. Gyro-free INS coarse alignment. Giroskopiya i Navigatsiya. 2016;24(1):173-182. (In Russ.) https://doi.org/10.17285/0869-7035.2015.23.4.173-182
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