Title :
Cascaded multiplierless realizations of low sensitivities allpass based fractional delay filters
Author :
Ivanova, Kamelia S. ; Anzova, Valentina I. ; Stoyanov, Georgi K.
Author_Institution :
Fac. of Commun. & Commun. Technol., Technical Univ., Bulgaria
Abstract :
A new method of design of fractional delay IIR filters based on cascade realization of allpass structures is proposed in this paper. Closed-form design expressions are derived and the sensitivity of the individual sections is minimized. The advantages of the method are demonstrated by comparative study. Efficient multiplierless implementations are discussed and the robustness in limited wordlength environment is firmly demonstrated.
Keywords :
IIR filters; all-pass filters; delays; allpass based fractional delay filters; cascaded multiplierless realizations; fractional delay IIR filters; limited wordlength environment; multiplierless implementations; Closed-form solution; Delay effects; Design methodology; Digital filters; Finite impulse response filter; Frequency; IIR filters; Interpolation; Robustness; Stability; IIR digital filters; allpass filters; fractional delay; low sensitivity; multiplierless;
Conference_Titel :
Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2005. 7th International Conference on
Print_ISBN :
0-7803-9164-0
DOI :
10.1109/TELSKS.2005.1572074
