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Problem of adaptive state observer synthesis for linear time-varying (LTV) system with unknown time-varying parameter and delayed output measurements is considered. State observation problem has attracted the attention of many researchers…

动力系统 · 数学 2022-07-26 Alexey Bobtsov , Nikolay Nikolaev , Olga Slita , Olga Kozachek

In this paper, we apply the recently developed generalized parameter estimation-based observer design technique for state-affine systems to the practically important case of linear time-varying descriptor systems with uncertain parameters.…

系统与控制 · 电气工程与系统科学 2024-07-22 Romeo Ortega , Alexey Bobtsov , Fernando Castanos , Nikolay Nikolaev

Using a time series model to mimic an observed time series has a long history. However, with regard to this objective, conventional estimation methods for discrete-time dynamical models are frequently found to be wanting. In fact, they are…

统计理论 · 数学 2015-03-19 Yingcun Xia , Howell Tong

Clock asynchronism is a critical issue in integrating radar sensing into communication networks. It can cause ranging ambiguity and prevent coherent processing of dis-continuous measurements in integration with asynchronous transceivers.…

信号处理 · 电气工程与系统科学 2022-07-26 J. Andrew Zhang , Kai Wu , Xiaojing Huang , Y. Jay Guo , Daqing Zhang , Robert W. Heath

An analysis of transition from chaotic to nonchaotic behavior and synchronization in an ensemble of systems driven by identical random forces is presented. The synchronization phenomenon is investigated in the ensemble of particles moving…

chao-dyn · 物理学 2015-06-24 B. Kaulakys , F. Ivanauskas , T. Meskauskas

The sensitivity parameter is widely used for quantifying fine tuning. However, examples show it fails to give correct results under certain circumstances. We argue that these problems only occur when calculating the sensitivity of a…

高能物理 - 唯象学 · 物理学 2007-10-24 Su Yan

We consider the pattern formation problem in coupled identical systems after the global synchronized state becomes unstable. Based on analytical results relating the coupling strengths and the instability of each spatial mode (pattern) we…

斑图形成与孤子 · 物理学 2009-11-10 Govindan Rangarajan , Yonghong Chen , Mingzhou Ding

Owing to the absence of the phase space attractors in the Hamiltonian dynamical systems, the concept of the identical synchronization between the dissipative systems is inapplicable to the Hamiltonian systems for which, thus, one defines a…

混沌动力学 · 物理学 2018-12-18 Anupam Ghosh , Tirth Shah , Sagar Chakraborty

This paper concerns the adaptive control problem for a class of nonlinear stochastic systems in which the state update is given by a nonlinear function of linear dynamics plus additive stochastic noise. Such systems arise in a wide range of…

系统与控制 · 电气工程与系统科学 2026-04-09 Lantian Zhang , Bo Wahlberg , Silun Zhang

Despite the benefits that directional coupler based parity-time symmetric systems may offer to the field of integrated optics, the realization of such couplers relies on rather strict design constraints on the waveguide parameters. Here, we…

光学 · 物理学 2015-12-23 Chicheng Ma , Wiktor Walasik , Natalia M. Litchinitser

The main challenge for adaptive regulation of linear-quadratic systems is the trade-off between identification and control. An adaptive policy needs to address both the estimation of unknown dynamics parameters (exploration), as well as the…

系统与控制 · 计算机科学 2019-04-01 Mohamad Kazem Shirani Faradonbeh , Ambuj Tewari , George Michailidis

The physical coupling between robots has the potential to improve the capabilities of multi-robot systems in challenging manufacturing processes. However, the path tracking accuracy of physically coupled robots is not studied adequately,…

系统与控制 · 电气工程与系统科学 2024-12-05 Xin Ye , Karl Handwerker , Sören Hohmann

The increasing availability of experimental data has intensified interest in calibrating stochastic models, raising fundamental questions about parameter identifiability. Structural identifiability determines whether parameters can be…

统计方法学 · 统计学 2026-05-14 Arianna Ceccarelli , Alexander P. Browning , Ruth E. Baker

Dynamical systems, for instance in model predictive control, often contain unknown parameters, which must be determined during system operation. Online or on-the-fly parameter identification methods are therefore necessary. The challenge of…

最优化与控制 · 数学 2021-04-05 Barbara Kaltenbacher , Tram Thi Ngoc Nguyen

This paper presents a new parameter estimation algorithm for the adaptive control of a class of time-varying plants. The main feature of this algorithm is a matrix of time-varying learning rates, which enables parameter estimation error…

最优化与控制 · 数学 2021-11-18 Joseph E. Gaudio , Anuradha M. Annaswamy , Eugene Lavretsky , Michael A. Bolender

This paper aims to review the measure synchronization, a weak form of synchronization observed in coupled Hamiltonian systems, briefly. This synchronization is characterized by a Hamiltonian system that displays either quasiperiodic or…

混沌动力学 · 物理学 2023-11-10 Anupam Ghosh

The linear response of synchronized chaotic units with delayed couplings and feedback to small external perturbations is investigated in the context of communication with chaos synchronization. For iterated chaotic maps, the distribution of…

混沌动力学 · 物理学 2013-02-05 Wolfgang Kinzel , Johannes Kestler , Ido Kanter

The problem of synchronization in heterogeneous networks of linear systems with nonlinear delayed diffusive coupling is considered. The network is presented in new coordinates mean-field dynamics and synchronization errors. Thus the problem…

适应与自组织系统 · 物理学 2022-05-11 Sergei A. Plotnikov

Group synchronization arises when two or more synchronization patterns coexist in a network formed of oscillators of different types, with the systems in each group synchronizing on the same time-evolution, but systems in different groups…

混沌动力学 · 物理学 2021-12-21 Shirin Panahi , Francesco Sorrentino

We consider networks of coupled maps where the connections between units involve time delays. We show that, similar to the undelayed case, the synchronization of the network depends on the connection topology, characterized by the spectrum…

无序系统与神经网络 · 物理学 2007-05-23 Fatihcan M. Atay , Jürgen Jost , Andreas Wende
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