US 12,332,345 B2
Radar device for vehicle and controlling method thereof
Jung Hwan Choi, Seoul (KR); JinGu Lee, Ansan-si (KR); Han Byul Lee, Seoul (KR); and Jae Hyun Han, Seoul (KR)
Assigned to HL KLEMOVE CORP., Incheon (KR)
Filed by HL KLEMOVE CORP., Icheon (KR)
Filed on Feb. 18, 2022, as Appl. No. 17/675,309.
Claims priority of application No. 10-2021-0022244 (KR), filed on Feb. 19, 2021.
Prior Publication US 2022/0268924 A1, Aug. 25, 2022
Int. Cl. G01S 13/931 (2020.01); G01S 13/53 (2006.01); H01Q 1/32 (2006.01); G01S 7/285 (2006.01); G01S 7/40 (2006.01); G01S 13/34 (2006.01); G01S 13/76 (2006.01)
CPC G01S 13/931 (2013.01) [G01S 13/53 (2013.01); H01Q 1/3233 (2013.01); G01S 7/285 (2013.01); G01S 7/4021 (2013.01); G01S 13/343 (2013.01); G01S 13/76 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A radar device for a vehicle comprising:
an antenna unit including a transmission antenna for transmitting a transmission signal and a receiving antenna for receiving a reception signal reflected from a target;
a signal processor configured to determine target direction information by using a phase difference between the reception signals received from the respective receiving antennas; and
a controller configured to control to perform a first mode and a second mode for transmitting and receiving signals at different pulse repetition intervals, respectively,
wherein the signal processor is configured to, if a preset phase correction condition is satisfied, correct a second mode reception signal received in the second mode based on a first mode reception signal received in the first mode, and
wherein the signal processor determines phase difference information included in only the first mode reception signal or only the second mode reception signal for each target based on phase information included in each reception signal.