US 12,339,353 B2
System for object detection
Xu Zhu, Kawasaki Kanagawa (JP); and Hiroki Mori, Kawasaki Kanagawa (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed on Sep. 7, 2021, as Appl. No. 17/467,685.
Claims priority of application No. 2020-167005 (JP), filed on Oct. 1, 2020.
Prior Publication US 2022/0107407 A1, Apr. 7, 2022
Int. Cl. G01S 13/90 (2006.01); G01S 7/04 (2006.01); G01S 13/32 (2006.01); G01S 13/56 (2006.01); G01S 13/86 (2006.01)
CPC G01S 13/9064 (2019.05) [G01S 7/04 (2013.01); G01S 13/32 (2013.01); G01S 13/56 (2013.01); G01S 13/867 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system comprising:
first to fourth transmission antennas;
a plurality of reception antennas; and
a processor configured to:
acquire a first position of a measurement target moving in a traveling direction;
acquire a first signal of radio waves which are transmitted by the first transmission antenna and the third transmission antenna, reflected by the measurement target, and received by the reception antennas in a case where the first position is acquired;
acquire a second position of the measurement target, the second position being different from the first position;
acquire a second signal of radio waves which are transmitted by the second transmission antenna and the fourth transmission antenna, reflected by the measurement target, and received by the reception antennas in a case where the second position is acquired; and
generate a first image by executing a synthetic aperture process using the first signal and the second signal,
wherein
the first to fourth transmission antennas are provided along a first direction that intersects with the traveling direction,
the plurality of reception antennas are provided along the first direction,
a first interval between the first transmission antenna and the third transmission antenna and a second interval between the second transmission antenna and the fourth transmission antenna are the same,
a position of the first transmission antenna is different from a position of the second transmission antenna in the first direction, and
a position of the third transmission antenna is different from a position of the fourth transmission antenna in the first direction,
the first position is different from the second position in the first direction,
the first direction is a vertical direction,
the first transmission antenna is lower than the second transmission antenna in the vertical direction,
the third transmission antenna is lower than the fourth transmission antenna in the vertical direction, and
the first position is lower than the second position in the vertical direction.