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Conference proceedings front matter may contain various advertisements, welcome messages, committee or program information, and other miscellaneous conference information. This may in some cases also include the cover art, table of contents, copyright statements, title-page or half title-pages, blank pages, venue maps or other general information relating to the conference that was part of the original...
This paper studies the problem of H∞ filter design for continuous-time nonhomogeneous Markov jump systems. The time-varying transition probabilities in continuous-time domain are considered to be in a polytopic type. By constructing a Lyapunov function and fully considering the information of filter parameters, the stochastic stability and a prescribed H∞ performance index are guaranteed in terms...
Continuity of the polytope generated by a set of matrices is dealt with in this paper. We have defined a norm for the polytope, and verified when these matrices belong to a compact set in Rn×n the norm is bounded and the polytope is compact. Moreover, we have verified if the polytope is treated as a set-valued mapping from Rn to Rn, it is continuous and with convex and compact values.
The great challenge posed by unmanned surface vehicle is to improve the automation level in practical application. In this paper, an unmanned surface vehicle course tracking controller is designed to overcome the input saturation caused by the limitation of the steering engine. The feedback control law is developed based on backstepping design method with the Lyapunov stability theory. An auxiliary...
This paper first discusses the D-pole placement problem of fractional-order linear systems. Some criteria are proposed to ensure that all the closed-loop eigenvalues of fractional-order linear systems are located inside a specific region S(a, r, θ). Then, necessary and sufficient D-stability condition of fractional-order linear systems guaranteeing the D-stability is presented. Conditions for feasibility...
In order to address the problem of detecting and tracking low signal-to-noise-ratio (SNR) targets in bistatic passive coherent location (PCL) system, an improved dynamic programming track-before-detect algorithm is proposed. First, the polar measurements are converted to Cartesian measurements. Second, the Cartesian measurements are clustered with the neural network, and the amplitudes of the valid...
In order to address the problem of tracking multiple targets with multiple passive sensors in the presence of clutter and miss-detection, a new multi-sensor Gaussian mixture probability hypothesis density filter, together with an intensity superimposing technique, is proposed in this paper. First, a gate technique is used to choose valid sensors for each predicted Gaussian component. Second, each...
In this paper, we construct a class of isospectral vibrating systems from partial explicit spectrum and partial implicit spectrum. It extends the work of P. Lancaster in which the isospectral vibrating systems are constructed only from complete explicit data or complete implicit data. The result can be applied to solve the partial pole assignment problem for the second-order system, such that the...
In this article, we propose a PID tuning method which can simultaneously guarantee desired closed-loop time response and stability margin. For systems without time-delay, dominant pole placement method is used to guarantee the desired closed-loop time response and generalized-frequency method is adopted to give systems the desired stability margin. For systems with time-delay, however, the desired...
In this paper, the problems of observer-based sliding mode control for a class of nonlinear system are investigated via Takagi-Sugeno (T-S) fuzzy approach. By using the T-S model as the design model, an adaptive sliding mode observer is first constructed to estimate the states of the original nonlinear system without knowing any information of the actuator fault. And then, a sliding mode surface in...
For a class of high order uncertain linear system affected by parameter variations and disturbance, a reduced order observer is considered. A set-valued observer is designed for the main part of reduced-order observer, which estimates a convex cone containing the real states and fault states. The theoretical foundation of design of set-valued observer is uniformly boundness theory. By constructing...
This paper studies the problem of robust H∞ control for uncertain stochastic system with time-varying delay. The time delay is assumed to be of interval type. By constructing a new stochastic Lyapunov-Krasovskii functional, Ito's formula and introducing free weighting matrix, sufficient conditions for delay-dependent robust H∞ control is obtained. The presented formulation is in the framework of linear...
In this paper, the problems of stability and stabilization for switched linear systems with finite-time unstable subsystems are revisited. Differ from the previous work, switching signal are designed with mode-dependent average dwell time (MDADT) property. Sufficient conditions are given to guarantee the switched linear systems with subsystems that are finite-time unstable being finite-time stability...
This paper deals with the stability regions for continuous-time systems with actuator saturation via homogeneous parameter-dependent quadratic Lyapunov functions(HPD-QLF). Using the homogeneous parameter-dependent quadratic Lyapunov functions, a new method about estimation of stability regions is obtained. Through formulating the problem as LMIs optimization problem, the new method can get less conservative...
This paper presents a new type of Lyapunov function which is called composite homogeneous parameter dependent quadratic Lyapunov function. By using this function, a condition is derived in terms of an auxiliary feedback matrix for determining if a given convex hull is an estimation of attractive region for a system under a saturated linear feedback. Most of the cases, the shape of attractive region...
This paper investigates the unknown input estimation for a large class of linear systems with commensurate delays. A Luenberger-like observer plus a high order sliding mode differentiator are proposed by involving only the past and actual values of the system output. Sufficient conditions are given to guarantee the existence of such an unknown input estimator.
In this paper, we prove the convergence and determine the best convergence factor of the gradient-based iterative algorithm for the equation Ax = b by analyzing the eigenvalues of the relevant matrices. A new property of eigenvalues related to the symmetric positive definite matrix is established. By using this property, we obtain a family of iterative algorithms for the linear matrix equation and...
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