OWN SHIP LOCATION POSITIONING DEVICE, RADAR DEVICE, OWN MOBILE BODY LOCATION POSITIONING DEVICE, AND OWN SHIP LOCATION POSITIONING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an own ship location positioning device that accurately measures the location of an own ship while restraining increase in cost and interference to another ship.SOLUTION: An own ship location positioning device 100 comprises: an absolute location acquisition unit 20, a relative location acquisition unit 18, a target identifying unit 21, and a positioning unit 22. The absolute location acquisition unit 20 acquires absolute locations of a racon 3 and another reference target from the racon 3 outside of a ship. The relative location acquisition unit 18 acquires relative locations of a plurality of targets by searching its surrounding by transmitting and receiving electromagnetic waves. The target identifying unit 21 identifies the reference target from the targets obtained by the relative location acquisition unit 18. The positioning unit 22 measures the absolute location of the own ship on the basis of the absolute location of the reference target identified by the target identifying unit 21 and the relative locations.