TY - JOUR
T1 - Design of IIR filters using new three allpass filters structure
AU - Fernandez-Vazquez, Alfonso
AU - Jovanovic-Dolecek, Gordana
AU - Xie, Xue Mei
PY - 2008
Y1 - 2008
N2 - We present a new structure for the IIR filter design composed of three allpass filters, i.e., one real-valued and two complex-valued allpass filters. In particular, applying the inverse discrete Fourier transform to the allpass filters, we get three real doubly complementary IIR filters. We also provide the procedure to design a lowpass filter with a desired characteristic using a complex-valued allpass filter with pre-determined characteristics. The proposed structure is used for three different lowpass filter designs, that is, eigenfilter, equiripple, and maximally flat filter design. Closed form equations for the computation of the maximally flat filter coefficients are also provided. The design techniques are illustrated by means of examples. copyright by EURASIP.
AB - We present a new structure for the IIR filter design composed of three allpass filters, i.e., one real-valued and two complex-valued allpass filters. In particular, applying the inverse discrete Fourier transform to the allpass filters, we get three real doubly complementary IIR filters. We also provide the procedure to design a lowpass filter with a desired characteristic using a complex-valued allpass filter with pre-determined characteristics. The proposed structure is used for three different lowpass filter designs, that is, eigenfilter, equiripple, and maximally flat filter design. Closed form equations for the computation of the maximally flat filter coefficients are also provided. The design techniques are illustrated by means of examples. copyright by EURASIP.
UR - http://www.scopus.com/inward/record.url?scp=84863758709&partnerID=8YFLogxK
M3 - Artículo de la conferencia
AN - SCOPUS:84863758709
SN - 2219-5491
JO - European Signal Processing Conference
JF - European Signal Processing Conference
T2 - 16th European Signal Processing Conference, EUSIPCO 2008
Y2 - 25 August 2008 through 29 August 2008
ER -