Title :
The design of linear phase FIR filters using the IDFT
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK
fDate :
8/1/1998 12:00:00 AM
Abstract :
The paper presents a comprehensive set of equations for specifying the transfer function of linear phase finite-impulse response (LPFIR) filters. A procedure for designing the eight possible LPFIR filters (symmetric and anti-symmetric, even and odd length, type 1 and type 2 filters), using the inverse discrete Fourier transform (IDFT) is described. This technique can be equally applied to the window method and the frequency sampling method
Keywords :
FIR filters; circuit CAD; delay circuits; discrete Fourier transforms; frequency response; software packages; transfer functions; MATLAB software; equations; frequency sampling method; inverse discrete Fourier transform; linear phase FIR filters design; transfer function specification; window method; Differential equations; Digital filters; Digital signal processing; Discrete Fourier transforms; Finite impulse response filter; Frequency response; Helium; Nonlinear filters; Signal design; Transfer functions;
Journal_Title :
Education, IEEE Transactions on
