US 12,298,429 B2
Method and apparatus with radar signal processing
Sungdo Choi, Suwon-si (KR); Jong-Sok Kim, Hwaseong-si (KR); and Young Rae Cho, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 27, 2023, as Appl. No. 18/496,145.
Application 18/496,145 is a continuation of application No. 17/331,074, filed on May 26, 2021, granted, now 11,802,939.
Claims priority of application No. 10-2020-0153048 (KR), filed on Nov. 16, 2020; and application No. 10-2020-0175857 (KR), filed on Dec. 15, 2020.
Prior Publication US 2024/0053435 A1, Feb. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 7/35 (2006.01); G01S 13/536 (2006.01); G01S 13/58 (2006.01); G01S 13/931 (2020.01)
CPC G01S 7/354 (2013.01) [G01S 7/356 (2021.05); G01S 13/536 (2013.01); G01S 13/584 (2013.01); G01S 13/931 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radar signal processing method, comprising:
determining a first ambiguous Doppler velocity of a target based on a range-Doppler map according to a first chirp sequence signal of a first carrier frequency;
estimating second ambiguous Doppler velocities according to ambiguity of the first ambiguous Doppler velocity; and
determining a Doppler velocity of the target based on an optimal ambiguity number determined by performing a partial frequency conversion on a second chirp sequence signal of a second carrier frequency based on the second ambiguous Doppler velocities.