SciELO - Scientific Electronic Library Online

vol.10 issue4Contrast Enhancement and Illumination Changes Compensation author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Computación y Sistemas

Print version ISSN 1405-5546


FERNANDEZ VAZQUEZ, Alfonso  and  JOVANOVIC DOLECEK, Gordana. Design of Linear Phase IIR Filters with Flat Magnitude Response using Complex Coefficients Allpole Filters. Comp. y Sist. [online]. 2007, vol.10, n.4, pp.335-356. ISSN 1405-5546.

This paper presents a new method for the design of linear phase IIR filters with flat magnitude response. The method is based on the design of flat digital allpole filters with complex coefficients. Depending on the parity of the allpole filter order the resulting IIR filter have either real or complex coefficients. The parameters of the design are the same as in traditional IIR filter design, i.e., passband and stopband frequencies, ωp and ωs, passband droop Ap , and stopband attenuation As . Several design examples are provided to illustrate the method. In addition, a design of linear phase modified two-band IIR filter banks and a design of stable IIR filter with an improved group delay are presented as two applications of the proposed method.

Keywords : IIR filters; linear phase; allpole filters; allpass filters; filter banks; improved group delay.

        · abstract in Spanish     · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License