| 摘要 |
<p>A radar, wherein a first threshold (TH1) is determined by the intensity of background noise, thresholds (TH21), (TH22), and (TH23) are set in specified frequency zones near peak positions in the skirt portions of peaks (P1), (P2), and (P3), the higher value of these thresholds is adopted as a final threshold for each FET bin, and a peak exceeding that threshold is regarded as a target peak and detected. Thus, target detecting accuracy can be increased by securely detecting the target peak resulting from a reflected wave from a target included in the frequency spectrum of beat signals.</p> |
