US 12,135,390 B2
System and method for processing radar signal
Se Yoon Kim, Yongin-si (KR); Young Kyun Kong, Yongin-si (KR); Jin Soon Kim, Yongin-si (KR); and Sang Hyung Kim, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Sep. 16, 2021, as Appl. No. 17/476,977.
Claims priority of application No. 10-2021-0077457 (KR), filed on Jun. 15, 2021.
Prior Publication US 2022/0397641 A1, Dec. 15, 2022
Int. Cl. G01S 7/40 (2006.01); G01S 13/34 (2006.01); G01S 13/931 (2020.01)
CPC G01S 7/4056 (2013.01) [G01S 13/34 (2013.01); G01S 13/931 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system for processing a radar signal for deriving a Doppler frequency from a sampled digital input signal radiated from a frequency modulation continuous wave (FMCW) radar, the system comprising:
a transmission module repeatedly transmitting a radar signal having a unique frequency variation and a pulse repetition interval;
a variation module varying the frequency variation or the pulse repetition interval of the radar signal transmitted from the transmission module;
an extraction module extracting an interference signal from the varied radar signal upon occurrence of interference between the radar signal having the varied frequency variation or pulse repetition interval and another radar signal; and
an adjustment module adjusting the radar signal to reduce the extracted interference signal,
wherein the adjustment module adjusts the radar signal to reduce the interference signal by replacing the extracted interference signal with 0.