Title :
Wideband linear-phase FIR differentiators utilizing multirate and frequency-response masking techniques
Author :
Sheikh, Zaka Ullah ; Johansson, Håkan
Author_Institution :
Dept. of Electr. Eng., Linkoping Univ., Linkoping, Sweden
Abstract :
This paper introduces a structure for the realization of wide-band linear-phase finite-length impulse response (FIR) differentiators. It is based on multirate and frequency-response masking techniques. Examples show that this structure achieves computational savings between some 10% and 65% for bandwidths in the range between 0.9 pi and 0.98 pi in comparison with conventional linear-phase differentiators.
Keywords :
FIR filters; differentiating circuits; frequency response; linear phase filters; bandwidth; frequency-response masking techniques; wideband linear-phase FIR differentiator; Bandwidth; Delay; Digital signal processing; Equalizers; Finite impulse response filter; Frequency conversion; IIR filters; Linear approximation; Signal design; Wideband;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5117743
