US 11,899,093 B2
Radar device, vehicle, and object position detection method
Katsuhisa Kashiwagi, Kyoto (JP); and Nobuyuki Nozawa, Kyoto (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed on May 20, 2021, as Appl. No. 17/325,716.
Application 17/325,716 is a continuation of application No. PCT/JP2019/043661, filed on Nov. 7, 2019.
Claims priority of application No. 2018-219598 (JP), filed on Nov. 22, 2018.
Prior Publication US 2021/0270954 A1, Sep. 2, 2021
Int. Cl. G01S 13/536 (2006.01); G01S 13/86 (2006.01); G01S 13/931 (2020.01)
CPC G01S 13/536 (2013.01) [G01S 13/86 (2013.01); G01S 13/931 (2013.01); G01S 2013/93274 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A radar device comprising:
a radar configured to acquire data of a plurality of stationary objects;
a processor;
a current position acquisition unit configured to acquire a current position of the radar; and
memory configured to store the current position of the radar,
wherein when the radar is moving, the processor is configured to:
acquire, for each of the plurality of objects, a distance to the object, and a relative velocity between the radar and the object based on the acquired data, and
separately detect positions of the plurality of objects based on a difference between the relative velocities, and
wherein when the radar is stopped, the processor is configured to:
correct the positions of the objects detected when the radar was moving, based on the current position of the radar unit stored in the memory, and
identify the positions of the plurality of objects.