| 摘要 |
PURPOSE: A system for checking changed geographic information of a seawater route is provided to precisely measure undersea topography information without respect to a wave force and find undersea topography information with an error, thereby immediately coping with the error. CONSTITUTION: An underwater exploration ship body moves under water. A location adjusting device prevents errors of sonars. The sonars(230,240) detect undersea topography. A rotational angle measuring device detects the location changes of the sonars. A location tracking device outputs the current location of an underwater exploration ship.
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