Artículos de revistas
A nearly optimum linear-phase digital FIR filters design
Fecha
2011Registro en:
DIGITAL SIGNAL PROCESSING, v.21, n.6, p.690-693, 2011
1051-2004
10.1016/j.dsp.2011.01.012
Autor
JOAQUIM, Marcelo Basilio
LUCIETTO, Carlos A. S.
Institución
Resumen
A new simple method to design linear-phase finite impulse response (FIR) digital filters, based on the steepest-descent optimization method, is presented in this paper. Starting from the specifications of the desired frequency response and a maximum approximation error a nearly optimum digital filter is obtained. Tests have shown that this method is alternative to other traditional ones such as Frequency Sampling and Parks-McClellan, mainly when other than brick wall frequency response is required as a desired frequency response. (C) 2011 Elsevier Inc. All rights reserved.