US 11,808,836 B2
Radar system for a vehicle
Muhammed Soubhi Al Kadi, Paderborn (DE); Tobias Breddermann, Lippstadt (DE); Ridha Farhoud, Laatzen (DE); Tai Fei, Hamm (DE); Christopher Grimm, Lippstadt (DE); and Ernst Warsitz, Paderborn (DE)
Assigned to HELLA GmbH & Co. KGaA
Filed by HELLA GmbH & Co. KGaA, Lippstadt (DE)
Filed on Apr. 5, 2021, as Appl. No. 17/222,600.
Application 17/222,600 is a continuation of application No. PCT/EP2019/075717, filed on Sep. 24, 2019.
Claims priority of application No. 10 2018 124 503.3 (DE), filed on Oct. 4, 2018.
Prior Publication US 2021/0223379 A1, Jul. 22, 2021
Int. Cl. G01S 13/42 (2006.01); G01S 7/03 (2006.01); G01S 13/931 (2020.01); H01Q 3/36 (2006.01)
CPC G01S 13/426 (2013.01) [G01S 7/03 (2013.01); G01S 13/931 (2013.01); H01Q 3/36 (2013.01); G01S 2013/9314 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A radar system for a vehicle, the radar system comprising:
at least two transmission antennas, each for emitting a transmission signal into the surroundings of the vehicle;
at least four reception antennas, each for acquiring a detection signal for detecting targets in the surroundings of the vehicle; and
a processing device to determine a viewing angle, in order to assign phase information in the detection signals to at least one viewing angle for respective detected targets, such that a minimum ambiguous range of the reception antennas in a first direction is set so that the assigned phase information is ambiguous to more than one viewing angle,
wherein all of the reception antennas in the first direction are arranged at different distances from one another so that just one of the distances corresponds to the minimum ambiguous range.