Study on a Ship with 6 Degrees of Freedom Inertial Measurement System and Related Technologies ()
ABSTRACT
We research ship 6 DOF inertial measurement method and displacement
reconstruction form acceleration signal to establish the strap-down inertial
navigation measurement system through sensors configuration technology. The inertial
measurement system consists of three groups of vertically mounted angular rate
and acceleration sensors. Through designing an FIR integration filter and
studying the ship displacement signal reconstruction from the acceleration, the
filter parameters design method and implementation way were determined. By means
of the beam vibration to analog ship heave motion reconstructs linear
displacement form acceleration signals. The root mean square error of the
reconstructed line displacement is 0.004 mm, and the mean value of the displacement
peak value is 5.92%, which is close to the design precision of the filter. The
test shows that the measurement system and the FIR filter to achieve the
predetermined precision with noise suppression.
Share and Cite:
Lu, J. , Li, Y. , Chen, S. and Wu, Y. (2016) Study on a Ship with 6 Degrees of Freedom Inertial Measurement System and Related Technologies.
Open Access Library Journal,
3, 1-10. doi:
10.4236/oalib.1102562.
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