US 12,474,445 B2
Distributed radar
Rui Lyu, Chengdu (CN); Luqi Zhang, Shenzhen (CN); and Yu Liu, Chengdu (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jan. 24, 2023, as Appl. No. 18/158,516.
Application 18/158,516 is a continuation of application No. PCT/CN2021/107009, filed on Jul. 19, 2021.
Claims priority of application No. 202010742331.8 (CN), filed on Jul. 28, 2020.
Prior Publication US 2023/0160999 A1, May 25, 2023
Int. Cl. G01S 7/40 (2006.01); G01S 13/00 (2006.01)
CPC G01S 7/4008 (2013.01) [G01S 7/40 (2013.01); G01S 13/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A distributed radar, comprising a controller, a receive antenna, and N transmit antennas, wherein N is an integer greater than or equal to 3;
the N transmit antennas comprise a first transmit antenna, a second transmit antenna, and a third transmit antenna, and a distance between the first transmit antenna and the controller is shorter than a distance between any of the other transmit antennas in the N transmit antennas and the controller;
a distance between the first transmit antenna and the second transmit antenna is a first distance, a distance between the first transmit antenna and the third transmit antenna is a second distance, and the first distance is shorter than the second distance; and
the second transmit antenna is connected to the controller by using a first cable, the third transmit antenna is connected to the controller by using a second cable, a ratio of the first distance to the second distance is a first ratio, a ratio of a length of the first cable to a length of the second cable is a second ratio, and the second ratio is greater than the first ratio.