| 摘要 |
<p>PURPOSE:To facilitate the comparison between a storage radar image and a current radar image. CONSTITUTION:A title item is provided with a radar image storage memory 8 which stores a radar image, an image azimuth correction means which corrects an azimuth of a current radar image according to an image rotation instruction data from a key-input circuit 13 or an azimuth data which is output from a gyro interface circuit 14, and an image main memory 7 which stores a current radar image where the azimuth is corrected by this image azimuth correction means. The storage radar image and the current radar image are displayed on a display portion 10 by allowing their azimuths to be matched.</p> |
