| 摘要 |
<p>There is provided determination of speed of a target as performed by a frequency-modulated continuous-wave (FMCW) vehicular radar device. A block of a ramped radar detection signal of a target is acquired. A range frequency transformation on each ramp of the ramped radar detection signal is performed, thereby producing a set of range gates. A first Doppler frequency transformation is performed on each range gate and across each ramp, thereby producing a first set of Doppler range bins. A time delay is introduced for each range gate, thereby producing a set of time delayed range gates. A second Doppler frequency transformation is performed on each time delayed range gate and across each ramp, thereby producing a second set of Doppler range bins. The speed of the target is determined by, for the block, measuring a difference between the first set of Doppler range bins and the second set of Doppler range bins.</p> |
