Title :
Design of very narrow band filters using sampling rate alternations
Author :
Fahmy, M.F. ; Wardany, A. El ; El-Gayed, N. ; Sobhy, M.I.
Author_Institution :
Dept. of Electr. & Electron. Eng., Assiut Univ., Egypt
Abstract :
A simple time-domain analysis method is described for the design of wave digital filters capable of performing sampling rate alternations. The case of digital interpolator is taken as an example. The method has been successfully used in the design of very narrow selective bandpass filters using interpolator and decimator architectures. Bandwidths of 0.3% have been realized with the next spurious at 11 times the center frequency. Illustrative examples are given
Keywords :
band-pass filters; filtering and prediction theory; interpolation; network synthesis; time-domain analysis; wave digital filters; bandpass filters; decimator architectures; digital interpolator; narrow band filters; sampling rate alternations; time-domain analysis; wave digital filters; Band pass filters; Design engineering; Digital filters; Finite impulse response filter; Frequency; IIR filters; Impedance; Narrowband; Sampling methods; Time domain analysis;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100632
