Title :
Computation of harmonic comb filter weights
fDate :
4/1/1993 12:00:00 AM
Abstract :
Harmonic comb filters are characterized in the frequency domain by notches arranged at equal intervals, and centered about DC. For a finite impulse response harmonic comb filter, the characteristic polynomial has its roots on the unit circle at equal angular intervals, symmetrically about 1+j0. A simple formula for the coefficients of such a polynomial and for their derivatives with respect to the frequency interval is presented. This result is applied as well to the computation of Butterworth filter parameters
Keywords :
adaptive filters; digital filters; filtering and prediction theory; frequency-domain analysis; polynomials; Butterworth filter parameters; FIR filter; adaptive comb filter; characteristic polynomial; computation; frequency domain; harmonic comb filter weights; notches; Distributed computing; Finite impulse response filter; Frequency domain analysis; Polynomials; Power harmonic filters; Q measurement; Roundoff errors; Signal processing; Speech processing; Symmetric matrices;
Journal_Title :
Signal Processing, IEEE Transactions on
