A Water Depth Acquisition Method Based on Tidal Calculation
In view of the situation that the depth sounder may have obvious inaccurate measurement when the ship is sailing at high speed,astern from the dock,and the ship has a large swing amplitude,this paper studies the water depth acquisition method based on tidal calculation.How to find the tide height and tide time at any time when the tide height and tide time of high and low tide are known is analyzed.The arbitrary height and time of the earth tide can be obtained through the influence area of the tide mea-suring station and the main and auxiliary ports.The calculation of tidal value can be used as a backup means to measure the water depth,and the accuracy of the water depth information of the sounder can be checked.
high and low tidetide measuring stationmain and auxiliary harbortide
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