| 摘要 |
<p>An FM-CW radar device in which an FM modulated wave outputted from a modulated signal generator has a gradient (modulation gradient) of frequency variation with respect to the time axis. The radar device comprises means for controlling the modulated frequency width or modulation period of a modulation signal to vary the modulation gradient. Further comprised is means for detecting a signal component changing with a change of the modulation gradient to discriminate the signal from a target object from other signals. In the case of an FM-CW radar device in which the transmission, the reception, or the transmission and reception are carried out by a time-division ON-OFF control, there is further comprised means for detecting the signal which changes with a change, if made, of the frequency for the ON-OFF control, thereby to discriminate the signal the target object from other signals.</p> |
