Title :
Design of narrow band filters using sampling rate alterations
Author :
Fahmy, M.F. ; El-Wardany, A. ; El-Gayed, N.A. ; Sobhy, M.I.
Author_Institution :
Assiut Univ., Egypt
Abstract :
A simple time domain analysis method is described for the design of wave digital filters capable of performing sampling rate alterations, with the case of a digital interpolator taken as an example. The method has been successfully used in the design of very narrow selective bandpass filters with bandwidths of 0.3% with the next spurious at 11 times the centre frequency, where standard frequency domain approaches fail to yield the correct results on a medium PC due to memory limitations
Keywords :
band-pass filters; filtering and prediction theory; interpolation; network synthesis; time-domain analysis; wave digital filters; WDF; digital interpolator; narrow band filters; sampling rate alterations; selective bandpass filters; time domain analysis; wave digital filters;
Conference_Titel :
Circuit Theory and Design, 1989., European Conference on
Conference_Location :
Brighton
