A Study of GPS Ship Navigation System Using Precise Coordinate Conversion Algorithm

Chang, Yong-Ku; Mun, Du-Yeoul; Choi, Sung-Jae; Lee, Young-Hee

Journal of Navigation and Port Research 2003;27(1):41-48.
Published online March 31, 2003.

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A Study of GPS Ship Navigation System Using Precise Coordinate Conversion Algorithm

Yong-Ku Chang, Du-Yeoul Mun, Sung-Jae Choi, Young-Hee Lee

Abstract

The most recent GPS is working on CNS(Car Navigation System) and personal terminal, but the ocean has not been. First studied GPS is sailing to ship but We have been connivance that. The ship is not need detail navigation. Lately, Harbor facilities and transportation service in harbors are complication. We have need accurate ship navigation system. In this paper, author developed algorithms of ellipsoid conversion between WGS84 and BESSEL and developed algorithms of map projection between ellipsoid coordinate system and plane cartesian coordinate system. Author used 3-parameter in coverting ellipsoids and used TM and UTM projection in converting between ellipsoid and plane cartesian coordinate. And author analyzed errors through static surveying and dynamic surveying of GPS for proving accuracy of GPS sensor. Furthermore author analyzed deflection error of received position. Finally author developed real time ship navigation system using cheap GPS sensor.

Key Words: TM투영;UTM투영; GPS;Sip Navigation System;TM;UTM;3-parameter;Accuracy