| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To determine the angle in the target direction efficiently with a small angle detection error, in the state where a plurality of targets exist in the same beam. <P>SOLUTION: A reflected signal from the target 13 is received by a receiving part 15 through an array antenna 14, and subjected to frequency analysis by FFT 16-1 to 16-n. The target signal is supplied to a multi-beam detection means 18 and a high-resolution processor 19. A peak in a beam formed by the multi-beam detection means 18 is detected by a peak detection means 20, and its signal is supplied to the high-resolution processor 19. The high-resolution processor 19 performs high-resolution processing around the peak, and thereby can perform high-resolution processing with a small amount of calculation. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
