Misalignment Angle and Calibration of a Two-component Electromagnetic Log
- 1 January 1976
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Navigation
- Vol. 29 (1) , 76-81
- https://doi.org/10.1017/s0373463300043356
Abstract
A simple method is described for estimating the angle of misalignment of a two-component electromagnetic log, using the covariance properties of the measured components when a ship is steered in a constant cross wind at a number of different speeds. It is shown that, with the present accuracy of radar fixing, allowing for misalignment has a very small effect on the determination of sensitivities for an absolute calibration. However the effect of misalignment is important when cross-calibrating the athwartships components of two electromagnetic logs.Keywords
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