US 12,259,491 B2
Radar signal sending method and device
Lutao Gao, Beijing (CN); Sha Ma, Beijing (CN); and Sida Song, Beijing (CN)
Assigned to Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed on Nov. 29, 2021, as Appl. No. 17/537,269.
Application 17/537,269 is a continuation of application No. PCT/CN2020/077653, filed on Mar. 3, 2020.
Claims priority of application No. 201910473501.4 (CN), filed on May 31, 2019.
Prior Publication US 2022/0082655 A1, Mar. 17, 2022
Int. Cl. G01S 7/02 (2006.01); G01S 7/536 (2006.01); G01S 7/35 (2006.01); G01S 7/36 (2006.01); G01S 13/34 (2006.01); G01S 13/931 (2020.01)
CPC G01S 7/023 (2013.01) [G01S 7/536 (2013.01); G01S 7/0235 (2021.05); G01S 7/35 (2013.01); G01S 7/36 (2013.01); G01S 13/343 (2013.01); G01S 13/931 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A radar signal sending method, comprising:
determining, by a first radar detection apparatus, a first time domain range in L time domain ranges, where L is a positive integer greater than 1; and
sending, by the first radar detection apparatus, a first radar signal in the first time domain range, wherein:
any one of the L time domain ranges partially overlaps at least one of the other (L−1) time domain ranges, and an absolute value of a difference between time domain start locations of any two of the L time domain ranges is greater than or equal to a first threshold and less than or equal to a second threshold, the first threshold being determined based on at least one echo delay and at least one propagation delay, the at least one echo delay comprising a first echo delay corresponding to a maximum detection distance of the first radar detection apparatus, and the at least one propagation delay comprising a first propagation delay corresponding to the first radar signal.