Elliptic filters with minimal Q-factors

Rabrenovic, D.M.; Lutovac, Miroslav D.

doi:10.1049/el:19940180

Cited by 19 publications

(5 citation statements)

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“…(37) and (38) into Eqns. (39)(40)(41)(42), and by solving the resulting equations for the reactive elementsL i andĈ i , one can obtainL…”

Section: Constraints For Guaranteed Bibo Stabilitymentioning

confidence: 99%

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Particle Swarm Optimization of Highly Selective Digital Filters over the Finite-Precision Multiplier Coefficient Space

Hashemi¹,

Nowrouzian²

2013

Digital Filters and Signal Processing

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“…(37) and (38) into Eqns. (39)(40)(41)(42), and by solving the resulting equations for the reactive elementsL i andĈ i , one can obtainL…”

Section: Constraints For Guaranteed Bibo Stabilitymentioning

confidence: 99%

“…Despite all the advantages of EMQF filters, they suffer from not being able to independently specify passband and stopband ripples [41], [42] of the filter. Additionally, EMQF filters have exceedingly low passband attenuation.…”

Section: Realization Of Iir Interpolation Digital Subfilters Using Elmentioning

confidence: 99%

Particle Swarm Optimization of Highly Selective Digital Filters over the Finite-Precision Multiplier Coefficient Space

Hashemi¹,

Nowrouzian²

2013

Digital Filters and Signal Processing

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“…Therefore, a damping factor could be improved by appropriate selection of transfer function H ( z ) . In this paper, it is shown that a Chebyshev rational function [4] based on analog prototype of elliptic filters with minimal &-factors [5] results in improvement of the phase error. Instead of the 7th-order elliptic transfer function given in [I] A ( z ) = B ( z ) = 0.18 + 0.825%-' + 1 .…”

Section: Selection Of Transfermentioning

confidence: 98%

“…7 8 4 r 5 + 0.258z-" + 0 . 0 2 5 3~-~, a new 15th-order transfer function is derived as cascade connection of two fifth-order minimum Q-factor analog prototype elliptic filters [5] and one fifth order filter with complex zeros [4]: The magnitude response is shown in Fig. 6.…”

Section: Selection Of Transfermentioning

confidence: 99%

A new approach to the phase error and THD improvement in linear phase IIR filters

Djokic¹,

Lutovac

Popović

1997 IEEE International Conference on Acoustics, Speech, and Signal Processing

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This paper deals with the real-time implementation of the IIR filters having linear phase. Powell and Chau have devised an efficient method for the design and realization of real-time linear phase IIR filters using suitable modifications of the well-known time reversing technique. In their method, the input signal is divided into L-sample segments, time-reversed, and twice filtered using two IIR filter blocks whose transfer functions are the same. The performance has been further improved by Willson and Orchard, where double zeros on the unit circle have been separated, giving better amplitude response in the stop-band and slightly smaller amplitude and phase distortions. In this paper, new improvements are described based on the reordering of polynomials in the numerator of the filter transfer function, or on the appropriate selection of the transfer function. The truncation noise, phase and amplitude errors of new realizations show considerable improvement over the previous solutions.

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“…Thus, joint optimization of subfilters is also considered in [59] where the filter obtained by the separate optimization is used as the initial solution. In [60], it is shown that H a (z) can be designed as a minimal Q-factor elliptic filter [122,123].…”

Section: Frm Technique For the Design Of Iir Filtersmentioning

confidence: 99%

Design of recursive digital filters using frequency-response masking technique

Liu¹

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Elliptic filters with minimal Q-factors

Cited by 19 publications

References 0 publications

Particle Swarm Optimization of Highly Selective Digital Filters over the Finite-Precision Multiplier Coefficient Space

Particle Swarm Optimization of Highly Selective Digital Filters over the Finite-Precision Multiplier Coefficient Space

A new approach to the phase error and THD improvement in linear phase IIR filters

Design of recursive digital filters using frequency-response masking technique

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