| 摘要 |
The present disclosure relates to a vehicle radar system (3) arranged to generate and transmit two FMCW chirp signal frequency ramps (4a, 4b). At least one transmitter antenna arrangement (10a) is arranged to transmit a first chirp signal (4a) at first times (t 1 ( n )), and at least one other spatially separated transmitter antenna arrangement (10b) is arranged to be activated to transmit a second chirp signal (4b) at second times (t 2(n) ) in an interleaved and repeated manner. The system (3) is arranged to calculate:
- a first velocity compensation factor V C1 according to: V c 1 = 4 ‹ À ‹ v target ‹ t r + t D » ,
where v target is the object's speed, t r is the duration time for a frequency ramp and t D is a delay time between two consecutive frequency ramps; and
- a second velocity compensation factor V C2 according to: V c 2 = 4 ‹ À ‹ v target ‹ t r + t D » + À ,
and to choose the azimuth angle that has the highest signal integration gain. The present disclosure also relates to a corresponding method. |
