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Filters
Allpass VFD Filter Design
2010
IEEE Transactions on Signal Processing
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Cantoni for useful discussions about allpass VFD filter structure. ...
The resulting optimization problem is nonlinear and nonconvex with a nonlinear continuous inequality constraint. Stability of the designed filters are discussed. ...
Stability of the designed filters are also discussed. The formulated optimization problem is nonlinear and nonconvex with a nonlinear continuous inequality constraint. ...
doi:10.1109/tsp.2010.2048316
fatcat:xggvlkn4sfhp3alcyu36epww2u
On The Design Of Low Delay Nearly-Pr And Pr Fir Cosine Modulated Filter Banks Having Approximate Cosine-Roll Transition Band
2004
Zenodo
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we end up with a nonlinear-phase lowpass FIR filter design problem having a cosine-shaped transition band as shown in (8) . ...
together with additional linear and convex quadratic constraints. ...
doi:10.5281/zenodo.38686
fatcat:au2dbhlowvfwjpizfxwpkalhbi
Global Optimum Design of Uniform FIR Filter Bank With Magnitude Constraints
2008
IEEE Transactions on Signal Processing
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Index Terms-Constraint transcription, filled function, finite impulse response (FIR) filter bank, global optimization. ...
The optimum design of a uniform finite impulse response filter bank can be formulated as a nonlinear semi-infinite optimization problem. ...
Then, the design of this filter bank is formulated as a nonlinear optimization problem with group delay and amplitude distortion constraints. ...
doi:10.1109/tsp.2008.927803
fatcat:3nv7zrjfx5e4bpf6a46w2h6fqi
Peak-constrained least-squares optimization
1998
IEEE Transactions on Signal Processing
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We showed how to use PCLS optimization to design symmetric FIR digital filters and windows in [1] and [2] . ...
It states that the tradeoff monotonically decreases and terminates with zero slope for all types of filters, including IIR digital filters, complex FIR digital filters, and analog filters. ...
ACKNOWLEDGMENT The authorswish to thank the reviewers for their comments and suggestions. ...
doi:10.1109/78.655417
fatcat:acoerexiynfn5fqn5so3pskioy
Design of Constrained Causal Stable IIR Filters Using a New Second- Order-Cone-Programming-Based Model-Reduction Technique
2007
IEEE transactions on circuits and systems - 2, Analog and digital signal processing
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This brief proposes a new method for designing infinite-impulse response (IIR) filter with peak error and prescribed flatness constraints. ...
Therefore, linear and convex quadratic inequalities such as peak error constraints and prescribed number of zeros at the stopband for IIR filters can be imposed and solved optimally. ...
least-squares (LS) or minimax errors, and the stability constraint are highly nonlinear functions of the filter coefficients. ...
doi:10.1109/tcsii.2006.883831
fatcat:yh4jatf7mbautk2bkd5job574i
Design Of Constrained Iir And Interpolated Iir Filters Using A New Semi-Definite Programming Based Model Reduction Technique
2004
Zenodo
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CONCLUSION A new method for designing IIR filters with peak error and magnitude flatness constraints is proposed. ...
For comparison purpose, a FIR counterpart of the above I-IIR filter are designed, where ) (z G and ) (z I are linear-phase FIR lowpass filters with lengths 41 and 19, respectively. ...
doi:10.5281/zenodo.38269
fatcat:7sv6vrsv5fbjdptk3v4ybqe4sy
Design of broadband beamformers robust against gain and phase errors in the microphone array characteristics
2003
IEEE Transactions on Signal Processing
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This paper describes two design procedures for designing broadband beamformers with an arbitrary spatial directivity pattern, which are robust against gain and phase errors in the microphone array characteristics ...
The first design procedure optimizes the mean performance of the broadband beamformer and requires knowledge of the gain and the phase probability density functions, whereas the second design procedure ...
ACKNOWLEDGMENT The authors would like to thank the reviewers for their valuable comments and suggestions. ...
doi:10.1109/tsp.2003.816885
fatcat:erl3mgpcdfgspmmz4jgww4kryi
Multi-Plet Two-Channel Perfect Reconstruction FIR and Causal Stable IIR Filter Banks
2006
IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications
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The design procedure is very general and it applies to both linear-phase/low-delay FIR and IIR multi-plet FBs. ...
PR FB with a much wider transition band is first designed using nonlinear optimization in order to obtain a symmetric frequency response and prescribed passband and stopband ripples. ...
However, since the numerator is designed with LS design criterion after determining the denominator, larger ripple error is usually encountered near the band-edge of the model-reduced filter, which in ...
doi:10.1109/tcsi.2006.885694
fatcat:dp2efx6o3jf5vbd67hvbk3rem4
On the Design of Nearly-PR and PR FIR Cosine Modulated Filter Banks Having Approximate Cosine-Rolloff Transition Band
2008
IEEE Transactions on Circuits and Systems - II - Express Briefs
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Next, a design procedure based on SOCP is presented. The low-pass CR filter in (4) can be designed by using SOCP with an additional amplitude constraint imposed at . ...
Most design methods [5] , [6] are focused on NPR CMFBs with linear-phase (LP) PFs. ...
doi:10.1109/tcsii.2007.916733
fatcat:tjgjbt6ubbgxveuscbf6j7jlpm
On the design and implementation of FIR and IIR digital filters with variable frequency characteristics
2002
IEEE transactions on circuits and systems - 2, Analog and digital signal processing
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A least squares (LS) approach is proposed for the design of FIR VDFs by expressing the impulse response of the filter as a linear combination of basis functions. ...
Index Terms-Design and implementation, finite-impulse response (FIR) filters, infinite-impulse response (IIR) filters, least squares design, model reduction, multiplier block, variable or tunable digital ...
Deng for reprints of his papers on variable digital filters and useful discussion, which greatly improved the presentation of this paper. ...
doi:10.1109/tcsii.2002.807574
fatcat:6xmdw6jth5enhf5kwyena254lu
Design of optimal band-stop FIR filter usingL1-norm based RCGA
2018
Ain Shams Engineering Journal
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In this paper, an optimal design of linear phase digital finite impulse response (FIR) band stop (BS) filter using the L 1 -norm based real-coded genetic algorithm (L 1 -RCGA) is presented. ...
This leads to a global optimal solution along with the improvement in filter design with same specifications. ...
In addition, to elevate the importance of the proposed results, the designed filters are compared with the existing filter design methodologies such as PSO, LS, Kaiser window and PM algorithm. ...
doi:10.1016/j.asej.2015.11.022
fatcat:ryloq6dtl5dcpiznanrokyf4gi
Structure Evolution Based Optimization Algorithm for Low Pass IIR Digital Filter Design
2017
International Journal of Computational Intelligence Systems
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Simulation results validate that the algorithm designs diversified structures of digital filters and they meet target frequency specifications and structure constraints tightly. ...
They are evaluated according to the mean squared error (MSE) between the designed and the desired frequency responses. ...
This work was also supported by the Foundation of Henan University, China, with the grant numbers: 2008YBZR028 and ZZJJ20140037. ...
doi:10.2991/ijcis.2017.10.1.69
fatcat:qmd2qdcd6jak5e7c2upk7jzvp4
Fuzzy based design of digital IIR filter using ETLBO
2016
Turkish Journal of Electrical Engineering and Computer Sciences
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A multiobjective IIR digital filter design problem takes into consideration magnitude and phase response of the filter simultaneously, while satisfying stability constraints on the coefficients of the ...
Furthermore, a decision-making methodology based on fuzzy set theory is applied to handle nonlinear and multimodal design problems of the IIR digital filter. ...
The multimodal and nonlinear error surface of digital IIR filters may lead to the trapping of conventional design algorithms at a local minimum [1, 5] . ...
doi:10.3906/elk-1410-107
fatcat:2kq4lzj5bjgnhogpb35omv7ove
IIR Approximation of FIR Filters Via Discrete-Time Vector Fitting
2008
IEEE Transactions on Signal Processing
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We present a novel technique for approximating finite-impulse-response (FIR) filters with infinite-impulse-response (IIR) structures through extending the vector fitting (VF) algorithm, used extensively ...
Pole flipping and maximum pole radius constraint guarantee stability and robustness against finite-precision implementation. ...
LS fit to the objective FIR frequency samples ff(z k )g in terms of both magnitude and phase. ...
doi:10.1109/tsp.2007.908935
fatcat:6wlkows24rgyjgqsiaa5ekigh4
Noniterative WLS design of allpass variable fractional-delay digital filters
2006
IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications
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Index Terms-Allpass variable fractional-delay (VFD) digital filter, iterative weighted-least-squares (WLS) design, noniterative WLS design, VFD digital filter, WLS design. ...
Compared with the existing iterative WLS method that solves a series of approximately linearized WLS minimization problems, the proposed noniterative one can yield much better design results with significantly ...
In [19] , a minimax method has been proposed for designing an allpass VFD filter with minimum phase-delay error. ...
doi:10.1109/tcsi.2005.854406
fatcat:ly35p3lcjbegdfuqptuhztva2y
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