Title :
Obtaining bandpass filter coefficients from low-pass prototypes
Author :
Alajajian, Charles J.
Author_Institution :
West Virginia University, Morgantown, WV, USA
Abstract :
In this letter a method is given for calculating the transfer function coefficients of an analog bandpass filter stemming from a known, all-pole low-pass prototype, which is independent of the filter order. By posing the problem as an interpolation problem and choosing uniformly spaced interpolating points On the unit circle, the coefficients are computed efficiently and accurately via the discrete Fourier transfrom.
Keywords :
Band pass filters; Error probability; Frequency; Gaussian noise; Interpolation; Linear systems; Polynomials; Prototypes; Telegraphy; Transmitters;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1986.13650