VDR(航海情報記録装置)による海上交通観測 : レーダデータからの船舶航跡の取得

概要

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In order to evaluate the maritime traffic system, vessel traffic observation is important for gathering basic data. In recent years, it became easy to grasp behavior or track of vessel by AIS. However, the diffusion of AIS is not high (only approx. 30% around the Kurushima Kaikyo). Therefore, just using AIS receiver to observe the ship which is not equipped AIS transponder is difficult highly. In this paper, it is tried to obtain the vessel traffic flow from RADAR data of Shipborne Voyage Data Recorder (VDR/S-VDR). VDRIS-VDR, which is like the CVR!FDR (what is called Black Boxes) of aircraft, is the data collecting and recording system of vessel equipment's statuses, output and RADAR data. By using image processing and motion analysis for VDR RADAR images, we obtained passing ship's position. As a result, it is shown comparison example of the vessel traffic flow from RADAR data and the vessel traffic flow by AIS.
2012-03-25