公开(公告)号：WO2020070462A1

公开(公告)日：2020-04-09

申请号：PCT/GB2019/000133

申请日：2019-09-14

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： SINGLETON, Gregory ,  GLASSON, Philip Henry

IPC: G01N29/22 ,  G01N29/26 ,  G01N29/34 ,  G01N29/44 ,  G10K11/34 ,  H04B7/06 ,  H04B7/08 ,  H04R1/20 ,  G01N29/30

Abstract: A method for determining the directional frequency response of an arrangement of transducer elements. The method comprises providing a simulation of locations of the transducer elements, in the spatial domain; providing a beamforming direction and a frequency range; converting the simulation of locations from the spatial domain into corresponding frequency response values in a spatial frequency domain, such that, for each frequency of a plurality of frequencies in the frequency range, a spatial frequency contour is defined, each of the spatial frequency contours intersecting at the origin; determining the frequency response by applying a transformation to the frequency response values for the provided beamforming direction and frequency range, translating the spatial frequency domain into a modified frequency domain, wherein the contours avoid intersecting; and outputting the frequency response. There is further provided a data processing device adapted to perform the method, a computer program, and a computer-readable medium.