| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To display a radar wake by turning it into a thin line at a required time point independently of the size of a target as to a movement wake display device, to display the wake display turned into a thin line by turning it into a straight line according to prescribed conditions, and to perform data accumulation. <P>SOLUTION: Original wake information is converted into thin-line wake information and displayed, thereby preventing a relevant area in a display image plane from being painted out by radar wakes even if a plurality of ships and vessels, etc. are fishing in the same area (sea area). Moreover, by further converting the thin-line wake information into linearized wake information, a wake display on the image plane can be expressed more simply. Furthermore, as to the linearized wake information, an extracted straight line is converted into numerical data denoting the positions of its starting point and endpoint, and stored. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
