| 摘要 |
<p>PURPOSE:To always optimize a receiving band width, by changing a receiving band width to the size approximate to the frequency band of a chip pulse corresponding to the frequency band width of said charp pulse by a receiving part. CONSTITUTION:In a chirp pulse modulation part 3, the frequency band width DELTAf of a chirp pulse is adjusted corresponding to a radio wave incident angle thetato allow azimuth resolving power to coincide with distance resolving power. Further, in a receiving part 7, a frequency band width is adjusted to the size approximate to the frequency band width DELTAf to optimumly set a receiving band width and, in its turn, a video signal 106 having a high S/N ratio can be obtained.</p> |
