Circuits, Systems, and Signal Processing
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Coupled and constrained sylvester equations in system design
Circuits, Systems, and Signal Processing - Tập 13 - Trang 663-694 - 1994
Several design problems, including reduced observer and compensator design, output feedback, and finite transmission zero assignment, are examined using the vehicle of the coupled Sylvester equations. The coupling is generally provided through a third equation involving the solutions of the two linear Sylvester equations, thus serving as a constraint on the allowed solutions. The Sylvester approac...... hiện toàn bộ
Adaptive Polynomial Filtering using Generalized Variable Step-Size Least Mean pth Power (LMP) Algorithm
Circuits, Systems, and Signal Processing - Tập 33 - Trang 3931-3947 - 2014
This correspondence presents the adaptive polynomial filtering using the generalized variable step-size least mean
$$p$$
th power (GVSS-LMP) algorithm for the nonlinear Volterra system identification, under the
...... hiện toàn bộ
A Novel Student’s t-based Kalman Filter with Colored Measurement Noise
Circuits, Systems, and Signal Processing - Tập 39 - Trang 4225-4242 - 2020
In this paper, a novel robust Student’s t-based Kalman filter (RSTKF) is proposed to solve the problem of a linear system with heavy-tailed process and measurement noises (HPMN) and colored measurement noise (CMN). The above problem is transformed into the filtering problem of a linear system with HPMN and white measurement noise after using the measurement differencing method and state augmentati...... hiện toàn bộ
Higher-Order Statistics-Based Non-uniform Linear Array for Underdetermined DoA Estimation of Non-circular Signals
Circuits, Systems, and Signal Processing - Tập 41 - Trang 2719-2749 - 2022
Statistical properties of signals play an essential role in designing algorithms for Direction of Arrival (DoA) estimation. Many times, signals are assumed to be circular, and circular moments are used thereof. Practically, non-circular signals exist and provide extra statistical information in terms of pseudo/non-circular moments/cumulants which can be used to improve the performance of any param...... hiện toàn bộ
On a Non-linear Electronic Circuit Filtering
Circuits, Systems, and Signal Processing - Tập 35 - Trang 459-480 - 2015
The stochastic versions of non-linear dynamic circuits are formalized using non-linear stochastic differential equations. Stochastic differential equations (SDEs) are exploited to analyse dynamical systems in noisy environments. A potential application of the SDEs can be regarded as ‘stochastic processes in electronic circuits’. The noisy sampling mixer, a component of digital wireless communicati...... hiện toàn bộ
Adaptive Input Design for Identification of Output Error Model with Constrained Output
Circuits, Systems, and Signal Processing - Tập 33 - Trang 97-113 - 2013
Optimal input design for system identification is an area of intensive modern research. This paper considers the identification of output error (OE) model, for the case of constrained output variance. The constraint plays a very important role in the process industry, in the reduction of degradation of product quality. In this paper, it is shown, in the form of a theorem, that the optimal input si...... hiện toàn bộ
Auxiliary Variable-Based Identification Algorithms for Uncertain-Input Models
Circuits, Systems, and Signal Processing - Tập 39 - Trang 3389-3404 - 2019
This study presents two auxiliary variable-based identification algorithms for uncertain-input models. The auxiliary variable-based least squares algorithm can obtain unbiased parameter estimates by introducing suitable auxiliary variable vectors. Furthermore, an auxiliary variable-based recursive least squares algorithm is proposed to reduce the computational efforts. To validate the framework an...... hiện toàn bộ
H ∞ Control of T-S Fuzzy Singularly Perturbed Systems Using Multiple Lyapunov Functions
Circuits, Systems, and Signal Processing - Tập 32 - Trang 2243-2266 - 2013
In this paper, H
∞ controller synthesis of T-S fuzzy singularly perturbed systems based on fuzzy and non-fuzzy multiple Lyapunov functions is discussed. By assuming some lower bounds for the grades of fuzzy membership functions and using the elimination lemma, the design conditions are presented in the form of linear matrix inequalities (LMIs). Considering ε as the singular perturb...... hiện toàn bộ
Biomedical Signal Denoising Via Permutating, Thresholding and Averaging Noise Components Obtained from Hierarchical Multiresolution Analysis-Based Empirical Mode Decomposition
Circuits, Systems, and Signal Processing - Tập 42 - Trang 943-970 - 2022
Biomedical signals are usually contaminated with interfering noise, which may result in misdiagnosis of diseases. Additive white Gaussian noise (AWGN) is a common interfering noise, and much work has been proposed to suppress AWGN. Recently, hierarchical multiresolution analysis-based empirical mode decomposition (EMD) denoising method is proposed and shows potential performance. In order to furth...... hiện toàn bộ
On the Stability Analysis of Systems of Neutral Delay Differential Equations
Circuits, Systems, and Signal Processing - Tập 38 - Trang 1639-1653 - 2018
This paper focuses on the stability analysis of systems modeled as neutral delay differential equations (NDDEs). These systems include delays in both the state variables and their time derivatives. The proposed approach consists of a descriptor model transformation that constructs an equivalent set of delay differential algebraic equations (DDAEs) of the original NDDEs. We first rigorously prove t...... hiện toàn bộ
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