Title :
Design of fractional delay filters using least square error and Fourier series
Author :
Babaii, Nikzad ; Nabavi, Abdolreza
Author_Institution :
Dept. of Electr. Eng., Tarbiat Modares Univ., Tehran, Iran
Abstract :
This paper presents two new methods for designing finite impulse response (FIR) fractional delay filters (FD). These methods, firstly, sample from basic delay system Z-D - when D is not integer - in the frequency domain, and then find a polynomial in integer power of Z using least square fittings approximation and Fourier series expansion. Examples are given to illustrate the accuracy of the techniques.
Keywords :
Fourier series; delays; digital filters; least squares approximations; network synthesis; series (mathematics); FIR polynomial; Fourier series; Fourier series expansion; delay system sampling; digital filter; finite impulse response; fractional delay filter design; fractional delay filters; frequency domain; least square error; least square fitting approximation; Bandwidth; Delay; Design methodology; Equations; Finite impulse response filter; Fourier series; Least squares approximation; Least squares methods; Polynomials; Transfer functions;
Conference_Titel :
Electrical and Computer Engineering, 2002. IEEE CCECE 2002. Canadian Conference on
Print_ISBN :
0-7803-7514-9
DOI :
10.1109/CCECE.2002.1013094
