Efficient group delay equalization of discrete-time IIR filters

MF Quélhas, A Petraglia… - 2004 12th European …, 2004 - ieeexplore.ieee.org
A novel methodology for estimating the optimum pole allocation of allpass group delay
equalizers with real coefficients is introduced. A computer-aided algorithm, whose input is …

Design of IIR filters using a pole-zero mapping approach

MF Quélhas, A Petraglia, MR Petraglia - Digital Signal Processing, 2013 - Elsevier
This paper presents a new technique for designing IIR filters that have minimum deviation
from equiripple response. The algorithm is also able to find transfer functions with unequal …

Low-sensitivity IIR switched-capacitor decimation filters using delay lines with staggered T/H stages

A Petraglia, JS Pereira, FAP Barugui - IEE Proceedings-Circuits, Devices and …, 2006 - IET
The realisation of switched-capacitor decimation filters employing transfer functions with
fewer number of poles (outside the origin of the z plane) than zeros is presented. The design …

Linear programming for the design of IIR filters

MF Quelhas, A Petraglia… - 2012 IEEE 3rd Latin …, 2012 - ieeexplore.ieee.org
This paper introduces a novel procedure for the design of IIR discrete-time filters. The
solution is obtained in the minimax sense through an optimization procedure termed …

[PDF][PDF] FIR and IIR Filters for Sound Equalization Systems

T Tajdari - Majlesi Journal of Telecommunication Devices, 2020 - mjtd.isfahan.iau.ir
IIR and FIR filters are widely used in digital signal processing. The choice of one of these
methods depends on the design requirements. In this paper, the two filter design methods …

Switched-capacitor decimation filter design using time-multiplexing and polyphase decomposition of transfer functions with low denominator orders

A Petraglia, FAP Barúqui, JS Pereira - Microelectronics journal, 2009 - Elsevier
A new switched-capacitor decimation filter design technique is presented. Based on a
combination of the polyphase decomposition of IIR low-pass transfer functions having small …

On the design of IIR digital filter using linearized equation systems

MF Quelhas, A Petraglia - Proceedings of 2010 IEEE …, 2010 - ieeexplore.ieee.org
This paper introduces a novel procedure for the design of IIR digital filters using linearized
equation systems. The equations are related to the poles and zeros radii and angles, and …

Group delay equalization of discrete-time filters

MF Quelhas, A Petraglia - 2003 IEEE International Symposium …, 2003 - ieeexplore.ieee.org
It is known that approximate linear phase frequency response may satisfy system
requirements in many applications. In such cases, UR filters could replace with advantages …

A 0.18/spl mu/m cmos sc lowpass filter for bluetooth channel selection

JS Pereira, A Petraglia… - 2004 IEEE International …, 2004 - ieeexplore.ieee.org
The integrated circuit design of a switched-capacitor filter for Bluetooth specifications is
described. It was based on the optimum allocation of poles and zeros to generate a transfer …

Uncertainty principle and sparse reconstruction in pairs of orthonormal rational function bases

D Xiong, L Chai, J Zhang - Signal Processing, 2020 - Elsevier
This paper presents theoretical results on the uncertainty principle and the sparse
reconstruction of rational transfer functions in a dictionary of two orthonormal rational …