| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid pairing error of peak frequency at the rising or falling of the frequency. SOLUTION: A signal processing device of FM-CW radar comprises a radar 1 wherein, at formation of beat signal of reception signal and transmission signal, beat signal is formed at each rising or falling of the frequency which is modulated into triangle waveform, a frequency analyzing part 4 which shows peak frequency where power becomes large to a target with which frequency analysis of each beat signal is performed, and a pairing part 5 for pairing peak frequencies at the rising or falling, in order of magnitude, if the number of peak frequencies equal to or above a threshold is identical at the rising or falling. Here, the pairing part 5 stores peak frequency and its peak width if the number of peak frequencies is identical at the rising or falling, and if the number of peak frequencies is different at the rising or falling, such frequency as power is peak in the peak width of a missing peak frequency is taken as peak frequency, for identical number of peak frequencies both at the rising or falling.</p> |
