| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a marine apparatus for tracking a target, capable of knowing whether or not azimuth data of one's own ship get abnormal. <P>SOLUTION: An association determining section 3 compares target ship data (radar tracking target data) being output from a target tracking section 2, with another ship data (AIS target data) being output from an AIS processing section 4, and outputs data determined as the same target to a variance determining section 5. The variance determining section 5 computes an index value based on a difference between target ship azimuth data included in the radar tracking target data and target ship azimuth data included in the AIS target data, and determines whether or not the azimuth data included in the radar tracking target data get abnormal, based on the index value. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
