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A Theoretical Study on Free Gyroscopic Compass

  • Jeong, Tae-Gweon (Division of Navigation System Engineering, Korea Maritime University) ;
  • Park, Sok-Chu (Division of Marine Systems Engineering, Korea Maritime University)
  • 발행 : 2006.12.31

초록

The authors aim to establish the theory necessary for developing the free gyroscopic compass and focus on mainly two points. One is to suggest north-finding principle by the angular velocity of the earth's rotation, and the other is to suggest orthogonal coordinate transformations of the motion rate of the spin axis, which transforms the components of motion rate in the free gyro frame into those in the platform frame and that this transformed rate is, in turn, transformed into the NED(north-east-down) navigation frame. Subsequently, ship's heading is obtained by using the fore-aft and athwartship components of the motion rate of the spin axis in the NED frame. In addition it was found how to solve the transformation matrix necessary for transforming each frame.

키워드

참고문헌

  1. Farrell, J. and Barth, M.(1999), 'The Global Positioning System and Inertial Navigation', Mcgraw-hill, pp. 44-50
  2. Jekeli, C.(2000), 'Inertial Navigation Systems with Geodetic Applications', Walter de Gruyter, p.25
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  4. Park, S. C. and Jeong, T. G.(2004), 'A Basic Study on Position Fixing by Free Gyros', Journal of Korean Navigation and Port Research, Vol.28, No.8, pp. 653-657 https://doi.org/10.5394/KINPR.2004.28.8.653
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피인용 문헌

  1. A Study on the Errors in the Free-Gyro Positioning and Directional System vol.37, pp.4, 2013, https://doi.org/10.5394/KINPR.2013.37.4.329