| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress bimodal clutters and to suppress a unimodal clutter as well in the case that the number of pulse hits is small, that a peak of a bimodal clutter spectrum is not completely separate, and even that the spectrum center frequency of one cluster is not a zero. <P>SOLUTION: If a clutter number determined by a clutter determination part 1 is one, a band rejection filter 8 is made to execute clutter suppression processing to a reception signal, and if the clutter number determined by the clutter determination part 1 is two, band rejection filters 9, 10 are made to execute clutter suppression processing to the reception signal. <P>COPYRIGHT: (C)2013,JPO&INPIT |
