US 11,899,130 B2
Method and device for determining a radar cross section, method for training an interaction model, and radar target emulator and test facility
Franz Michael Maier, Graz (AT); and Vamsi Prakash Makkapati, Hausmannstätten (AT)
Assigned to AVL List GmbH, Graz (AT)
Appl. No. 17/046,955
Filed by AVL LIST GMBH, Graz (AT)
PCT Filed Apr. 12, 2019, PCT No. PCT/AT2019/060125
§ 371(c)(1), (2) Date Apr. 9, 2021,
PCT Pub. No. WO2019/195872, PCT Pub. Date Oct. 17, 2019.
Claims priority of application No. A 50318/2018 (AT), filed on Apr. 13, 2018.
Prior Publication US 2021/0239796 A1, Aug. 5, 2021
Int. Cl. G01S 13/931 (2020.01); G01S 7/40 (2006.01); G01S 7/41 (2006.01)
CPC G01S 7/4078 (2021.05) [G01S 7/40 (2013.01); G01S 7/412 (2013.01); G01S 13/931 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for determining a radar cross section of a simulated radar target, comprising:
simulating a propagation of a virtual radar signal on the basis of an interaction model in a simulated environment scenario which contains the simulated radar target, wherein an interaction of the virtual radar signal with the simulated radar target is modeled such that a physical variable characterizing the virtual radar signal is divided into a directional component corresponding to a directed scattering of the virtual radar signal and a diffuse component corresponding to an isotropic scattering of the virtual radar signal, wherein the propagation of the directional component of the virtual radar signal is simulated in a sub-step and the interaction of the directional component with a further simulated radar target is calculated in a subsequent sub-step;
determining a value of the physical variable at a receiver point in the simulated environment scenario factoring in the directional component and the diffuse component; and
deriving the radar cross section of the simulated radar target from the determined value of the physical variable at the receiver point.