Stability of Interfered Digital Filters Subjected to Markovian Jumping Parameters and Time Delay Employing Quantization/Overflow Nonlinearities
Sign Up to like & getrecommendations! Published in 2021 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-021-01808-4
Abstract: The problem of mixed $$H_{\infty }$$ and passivity performance analysis is investigated for interfered digital filters under Markovian jumping parameters, time-varying delays and various combinations of quantization and overflow nonlinearities. By virtue of Lyapunov–Krasovskii stability… read more here.
Keywords: mixed infty; interfered digital; infty passivity; performance ... See more keywords
ISS Criterion for Lipschitz Nonlinear Interfered Fixed-Point Digital Filters with Saturation Overflow Arithmetic
Sign Up to like & getrecommendations! Published in 2022 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-021-01823-5
Abstract: In this paper, we study the problem of input-to-state stability (ISS) of Lipschitz nonlinear fixed-point digital filters in a state-space realization with saturation arithmetic and external disturbance. Using the Lyapunov theory along with the ‘passivity… read more here.
Keywords: criterion; fixed point; point digital; digital filters ... See more keywords
Structure evolution-based design for low-pass IIR digital filters with the sharp transition band and the linear phase passband
Sign Up to like & getrecommendations! Published in 2019 at "Soft Computing"
DOI: 10.1007/s00500-017-2910-2
Abstract: Digital filters are generally designed by identifying the transfer functions. Most researches are focused on the goal of approaching the desired frequency response and take less additional consideration of structure characteristics. As a matter of… read more here.
Keywords: frequency; digital filters; structure evolution; structure ... See more keywords
A structure evolution-based design for stable IIR digital filters using AMECoDEs algorithm
Sign Up to like & getrecommendations! Published in 2020 at "Soft Computing"
DOI: 10.1007/s00500-019-04268-w
Abstract: This paper proposes a subsystem-based structure evolution algorithm for stable IIR digital filter design. The method designs the IIR digital filter through optimizing the filter structure. A filter structure is defined as the connection of… read more here.
Keywords: stable iir; iir digital; digital filters; structure evolution ... See more keywords
Design of two-dimensional IIR digital filters by using a novel hybrid optimization algorithm
Sign Up to like & getrecommendations! Published in 2017 at "Multidimensional Systems and Signal Processing"
DOI: 10.1007/s11045-016-0397-0
Abstract: This paper proposes a hybrid optimization algorithm named as BBO–PSO, which is a combination of biogeography-based optimization (BBO) and particle swarm optimization (PSO). In BBO–PSO, the whole population will be split into several subgroups and… read more here.
Keywords: iir digital; pso; hybrid optimization; optimization ... See more keywords
A novel word length selection method for a guaranteed $$H_\infty $$H∞ interference rejection performance and overflow oscillation-free realization of 2-D digital filters
Sign Up to like & getrecommendations! Published in 2018 at "Multidimensional Systems and Signal Processing"
DOI: 10.1007/s11045-017-0504-x
Abstract: This paper examines the problem of the local overflow stability and disturbance attenuation performance analysis of two-dimensional (2-D) Roesser digital filters in the presence of external interferences. In particular, by utilizing the local properties of… read more here.
Keywords: interference rejection; rejection performance; word length; infty interference ... See more keywords
Chebyshev approximation problem of multidimensional IIR digital filters in the frequency domain
Sign Up to like & getrecommendations! Published in 2018 at "Multidimensional Systems and Signal Processing"
DOI: 10.1007/s11045-017-0525-5
Abstract: This paper investigates the problem of simultaneous approximation of a prescribed multidimensional frequency response. The frequency responses of multidimensional IIR digital filters are used as nonlinear approximating functions. Chebyshev approximation theory and the notion of… read more here.
Keywords: chebyshev approximation; approximation; iir digital; multidimensional iir ... See more keywords
Input-to-State Stability Analysis of Digital Filters With Generalized Overflow Arithmetic and Time-Varying Delay
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2022.3203670
Abstract: This work focuses on the input-to-state stability (ISS) of digital filters with disturbances and time-varying delay in the presence of generalized overflow arithmetic. First, an extra-freedom-based lemma is derived to consider the information about the… read more here.
Keywords: state; overflow arithmetic; digital filters; state stability ... See more keywords
Biparametric Wave Digital Filters
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2017.2679007
Abstract: We propose a novel class of wave digital filters (WDFs), called Biparametric WDFs (BWDFs), whose power-normalized waves are defined as having two free parameters instead of just one. We explore the advantages brought by this… read more here.
Keywords: digital filters; wave digital; biparametric wave;
Novel Stability Criterion for 2-D Digital Filters With Saturation Arithmetic
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2022.3229072
Abstract: The saturation overflow stability problem for two-dimensional (2-D) digital filters in Roesser model is studied in this brief. By perceptive utilization of the 2-D system dynamics, a novel global asymptotic stability (GAS) criterion (together with… read more here.
Keywords: novel stability; criterion digital; stability criterion; criterion ... See more keywords
Stability of state-delayed digital filters with overflow nonlinearities
Sign Up to like & getrecommendations! Published in 2022 at "Transactions of the Institute of Measurement and Control"
DOI: 10.1177/01423312211059519
Abstract: In this work, stability of digital filters in the presence of overflow nonlinearities and time-varying delay is investigated with/without external disturbance. Two new lemmas related to characterization of overflow nonlinearities are developed. The first lemma… read more here.
Keywords: overflow nonlinearities; varying delay; nonlinearities developed; digital filters ... See more keywords