マリンレーダーを用いた波浪モニターシステムの開発(第一報) : 数値シミュレーションによるレーダー信号の作成と解析

概要

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In the present paper, the authors study about the possibility of obtaining characteristics of ocean wave systems using echo signals from a marine radar system. They solve the radar equation to simulate A-SCOPE, original echo signals from marine radar system, after generating 2-dimensional wave field having prescribed wave characteristics including 2-dimensional wave spectra. The A-SCOPE signals are converted from 2-dimensional wave field expressed in a rectangular coordinate system to a polar coordinate system. Provided the A-SCOPE signals, they analyses the signals by means of spectral analysis methods of already developed to discuss about the accuracy and error infusions during the data processing. After analyzed simulated radar echo of long-crested regular waves and short-crested irregular wave systems, they point out several defects contained in the existing analysis methods. They finally propose a method that will make it possible to obtain characteristics of wave systems propagating to different directions.
社団法人日本船舶海洋工学会の論文
2003-09-25