| 摘要 |
PURPOSE:To eliminate a pseudo image due to a structure on a vessel and to obtain a reliable image by storing individually pieces of received information outputted by transmitter-receivers corresponding to the 1st and the 2nd antenna systems, and outputting them at a specific timing. CONSTITUTION:The 1st antenna 10A is mounted at the bow part of the vessel and put in charge of target detection for the 1st azimuth range in front of the bow, the 2nd antenna system 10B is mounted on the stern part and put in charge of target detection for the 2nd azimuth range behind the stern, and the transmitter-receivers are provided separately corresponding to those system. A memory mechanism 20 is stored with the pieces of received information outputted by he transmitter-receivers 12A and 12B separately and outputs them at the predetermined timing. The 1st image display mechanism 21A displays the composite image of the 1st and the 2nd azimuth ranges based on the output information from the memory mechanism 20. Further, the 2nd image display mechanism 21B displays the image of the whole of the 1st and the 2nd azimuth angle ranges based on the received information outputted by either of the transmitter-receivers 12A and 12B.
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