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This paper studies the problem of designing the output feedback controller for linear systems with actuator saturation and input-additive uncertainties. Considering the advantages of the recently developed parametric Lyapunov equation based design method, a new reduced order observer-based output feedback controller is proposed to solve the robust stabilization problem. To apply the proposed gain...
An online updated proportion integration differentiation (PID) controller is proposed for calciner outlet temperature using input/output (I/O) data. Firstly, the adaptive observer is used to estimate the pseudo-partial derivative (PPD) parameter of compact form dynamic linearization, which is used to dynamically linearize a nonlinear system. Secondly, The proposed PID parameter setting principles...
The paper considers the controllability of Hopfield impulsive neural network systems with infinite delay in Banach spaces. Taking into account the influence of the impulsive controls, we obtain a sufficient condition of the controllability which is weaker than the existing result in [14](without the Kalman rank condition). An example is given to illustrate our results.
In this paper, a new order reduction approach will be proposed for Roesser state-space model of multidimensional (n-D) systems based on the elementary operation order reduction approach proposed by the co-authors very recently. It will be shown that the n-D order reduction problem can be formulated again into an elementary operation problem of an well-initialized n-D polynomial matrix but the standard...
This paper considers the consensus problem via local static output feedback for a multi-agent system under a distributed self-triggered control framework. A distributed static output feedback control algorithm is designed by incorporating the self-triggered control strategy, where each agent computes its next triggering times based on its local information at the last triggering time. It is shown...
For the spacecraft which has great flexibility and strong coupling has the large ground measurements error of flexible parameters and the high-precision in orbit control difficulties. Based on piezoelectric ceramic sensor and actuator we design the active vibration suppression program which obtains the dynamics model of spacecraft that has great flexibility through parameter identification of high-precision...
In the brief, the optimal FSL (fixed-small-lag) smoother for descriptor systems is considered, where there are instantaneous and single delayed measurement, and the above two series of measurements have been corrupted by multiplicative noises. Singular value decomposition and projection theorem are used to deal with such a difficult problem, the fixed-small-lag smoother is presented for the case of...
This paper deals with the problems of finite-time stochastic stabilization and finite-time H∞ control for discrete-time Takagi-Sugeno(T-S)fuzzy stochastic systems. The purpose of the finite-time stochastic stabilization problem is to design a state feedback fuzzy controller such that the closed-loop fuzzy system is finite-time stochastic stable. In the H∞ control problem, in addition to the finite-time...
The service-time-limited (STL) scheduling policy with lower and upper service-time adjustable factors, admits service-time constraints on buffers, but does not bring queue constraints on buffers. However, the buffer capacity is finite for most of real-world problems. Motivated by this problem, this paper considers the execution of the STL scheduling policy with finite buffer capacity. First, the notion...
Aiming at the problems about the drum pressure of the boiler combustion system has the time varying and time delay characteristics, it's difficult for traditional PID (Proportion Integration Differentiation) control to meet the demands of the control problems, a new control algorithm named ITGC (Intelligent Track Guiding Control) was proposed in this paper. Based on traditional PID control algorithm,...
This paper investigates three kinds of system decompositions of multi-valued Boolean control networks. Based on the algebraic representation of Boolean control networks, some necessary and sufficient graphical conditions for the decomposability are proposed and consequently the system decomposition problems are completely solved. It is revealed that not every Boolean control system has a Kalman decomposition.
This study generalizes the normal controllability canonical forms of linear systems. It is proved that any linear multi-input system can be transformed into corresponding generalized controllability canonical form via an appropriate similarity transformation, no matter it is controllable or not. The potential application of such a generalized form is also reviewed. A numerical example is presented...
This paper develops a hybrid adaptive control (HAC) framework based on fast block least mean square (FBLMS) algorithm for gust load alleviation (GLA). Currently, the GLA control system is usually focusing on the alleviation of structural vibration of aircraft caused by turbulence perturbation. However, the conventional GLA control system could become useless as we need to focus on the alleviation...
In this paper, semi-global disturbance decoupling and semi-global stability problem for continuous-time periodic linear systems with input saturation is investigated. Based on the controllability hypothesis of the periodic system matrix pair, a family of periodic linear state feedback laws are structured through the positive definite solutions to a class of periodic Riccati differential equations,...
In order to decrease both the weight and the size of submarine, the variable vector propeller (i.e., VVP) has been applied on it. In this paper we will study the vertical movement control for submarine with variable vector propeller. Firstly, we will build the dimension move model of vertical movement of submarine with variable vector propeller and predigest according of need of control system. Secondly,...
The first-order or second-order process model with time delay is often used to approximate the high-order process object. However, it is difficult to accurately describe the dynamic behavior of the system. Therefore, the traditional PID control method is unable to obtain satisfactory control effect. In the meantime, conventional internal model control (IMC) cannot obtain better control performance...
In this paper, the observability of probability Boolean networks is studied and several necessary and sufficient conditions are obtained. First, for probabilistic Boolean networks, the observability is defined and their algebraic form is given. Then, several necessary and sufficient conditions are obtained, based on which the observability is solved. Finally, an illustrative example is studied to...
Linear active disturbance rejection control (LADRC) is used to control the fuel processing system (FPS) of fuel cells. Two LADRC schemes (with and without decoupler) are studied. LADRCs with decouplers are designed at three operating points. Step responses and Monte Carlo experiments show that good dynamic performance and strong robustness can be achieved. The result is further verified with bode...
A Battle Damage Assessment (BDA) algorithm with change detection of Synthetic Aperture Radar (SAR) images is established. Aiming at the difficulty of accurately distinguishing the attacked and non-attacked areas within a large swath SAR scene, SAR images are divided into small patches, and Scale Invariant Feature Transform (SIFT) semantic features are extracted for each of them. According to the semantic...
There exist a lot of uncertainties in the aircraft motion model, to give an effective clearance of the flight control system, this paper propose an approach to estimate the closed-loop poles distribution area of the flight control system with several perturbation parameters. Global sensitivity analysis is used as the pretreatment measure to find out the perturbation parameters which show obviously...
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