Title :
On approximating an FIR filter using discrete orthonormal exponentials
Author :
Friedman, David H.
Author_Institution :
Rutgers University, Piscataway, NJ
fDate :
8/1/1981 12:00:00 AM
Abstract :
A given causal FIR filter may be approximated by an IIR filter of lower order requiring fewer memory elements. An iterative procedure is given for optimizing the approximation in the discrete time domain, based on representing the IIR function as a sum of orthonormalized complex decaying exponentials.
Keywords :
Equations; Finite impulse response filter; IIR filters; Linear systems; Nonlinear filters; Polynomials; Quantization; Roundoff errors; Speech processing; Transfer functions;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
DOI :
10.1109/TASSP.1981.1163654
