Title :
An Improved method for the design of variable fractional-delay IIR digital filters
Author :
Pei, Soo-Chang ; Shyu, Jong-Jy ; Chan, Cheng-Han ; Huang, Yun-Da
Author_Institution :
Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
In this paper, an improved method is proposed for the design of variable fractional-delay (VFD) IIR digital filters. The objective error function is constituted directly by the root-mean-squared error function of variable frequency response and the stability constrained function, so that the root-mean-squared error of variable frequency response can be minimized while the designed VFD IIR filter is stable. Several design examples will be presented to demonstrate the effectiveness of the proposed method.
Keywords :
IIR filters; frequency response; mean square error methods; VFD IIR digital filter; objective error function; root-mean-squared error function; stability constrained function; variable fractional-delay IIR digital filter; variable frequency response; Band pass filters; Delay; Filtering theory; Finite impulse response filter; Frequency response; IIR filters;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5937585
