公开(公告)号：US20210250017A1

公开(公告)日：2021-08-12

申请号：US17171757

申请日：2021-02-09

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Yeonsoo JANG ,  Jintae PARK ,  Beomjun PARK ,  Insun KIM ,  Ghiback KIM

IPC: H03H17/02

Abstract: This application relates to a signal filtering device. The device includes a memory and a processor. The processor may generate one or more matrices based on a size of a digital filter bank that generates an output signal by dividing an input signal into a plurality of channels and store in the memory each of the generated one or more matrices to which a plurality of digital filter bank coefficients or a plurality of input signals are assigned. The processor may also partially calculate the stored plurality of digital filter bank coefficients and the plurality of signals based on a number of at least some of the plurality of channels, and calculate the calculated digital filter bank coefficients and signals. The processor may further perform a discrete Fourier transform (DFT) on the calculated signal and compensate for a phase of the discrete Fourier transformed signal according to a preset reference.