US 12,461,220 B2
Radar signal processing device, radar device, radar signal processing method, and non-transitory computer-readable medium
Tetsuya Miyagawa, Hyogo (JP); and Yoshifumi Ohnishi, Hyogo (JP)
Assigned to FURUNO ELECTRIC CO., LTD., Hyogo (JP)
Filed by FURUNO ELECTRIC CO., LTD., Hyogo (JP)
Filed on Jun. 1, 2023, as Appl. No. 18/327,066.
Application 18/327,066 is a continuation of application No. PCT/JP2022/002374, filed on Jan. 24, 2022.
Claims priority of application No. 2021-025785 (JP), filed on Feb. 22, 2021.
Prior Publication US 2023/0324536 A1, Oct. 12, 2023
Int. Cl. G01S 13/46 (2006.01); G01S 13/91 (2006.01)
CPC G01S 13/46 (2013.01) [G01S 13/917 (2019.05)] 20 Claims
OG exemplary drawing
 
1. A radar signal processing device, mounted on a ship together with an antenna, comprising:
processing circuitry configured to:
calculate a shielding length which is a horizontal length of a region where a transmission signal transmitted from the antenna is shielded by a shielding object above a reference plane based on a reflection signal reflected by a target in a target area after the transmission signal is transmitted to the target area through the antenna with a radiation direction of the transmission signal oblique to the reference plane; and
calculate a height of the shielding object from the reference plane based on the shielding length and a positional relationship between the shielding object and the antenna.