In this paper, the quantized feedback control problem is investigated for a class of network-based 2-D systems described by Roesser model with data missing. It is assume that the states of the controlled system are av...
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ISBN:
(纸本)9781467374439
In this paper, the quantized feedback control problem is investigated for a class of network-based 2-D systems described by Roesser model with data missing. It is assume that the states of the controlled system are available and there are quantized by logarithmic quantizer before being communicated. Moreover, the data missing phenomena is modeled by a Bernoulli distributed stochastic variable taking values of 1 and 0. A sufficient condition is derived in virtue of the method of sector-bounded uncertainties, which guarantees that the closed-loop system is stochastically stable. Based on the condition, quantized feedback controller can be designed by using linear matrix inequalities technique. The simulation example is given to illustrate the proposed method.
In this paper, a novel terminal iterative learning control approach is explored for a class of nonlinear discrete-time systems. It targets a terminal tracking tasks to a single desired point at the end of a run. A new...
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ISBN:
(纸本)9781467374439
In this paper, a novel terminal iterative learning control approach is explored for a class of nonlinear discrete-time systems. It targets a terminal tracking tasks to a single desired point at the end of a run. A new control objective function is designed by incorporating a forgetting factor to obtain the control law. The proposed approach is a data-driven scheme and only depends on the measured I/O data without any modeling knowledge. The simulation results demonstrate the effectiveness of the proposed method.
This paper addresses the problem of robust stabilization for uncertain systems subject to input saturation and nonhomogeneous Markov *** uncertainties are assumed to be norm bounded and the transition probabilities ar...
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ISBN:
(纸本)9781467397155
This paper addresses the problem of robust stabilization for uncertain systems subject to input saturation and nonhomogeneous Markov *** uncertainties are assumed to be norm bounded and the transition probabilities are time-varying and *** expressing the saturated linear feedback law on a convex hull of a group of auxiliary linear feedback laws and the time-varying transition probabilities inside a polytope,we establish conditions under which the closed-loop system is asymptotically *** on these conditions,the problem of designing the state feedback gains for achieving fast transience response with a guaranteed size of the domain of attraction is formulated and solved as a constrained optimization problem with linear matrix inequality(LMI) *** results are then illustrated by a numerical example.
Social computing, as the technical foundation of future computational smart societies, has the potential to improve the effectiveness of opensource big data usage, systematically integrate a variety of elements includ...
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Social computing, as the technical foundation of future computational smart societies, has the potential to improve the effectiveness of opensource big data usage, systematically integrate a variety of elements including time, human, resources, scenarios, and organizations in the current cyber-physical-social world, and establish a novel social structure with fair information, equal rights, and a flat configuration. Meanwhile, considering the big modeling gap between the model world and the physical world, the concept of parallel intelligence is introduced. With the help of software-defined everything, parallel intelligence bridges the big modeling gap by means of constructing artificial systems where computational experiments can be implemented to verify social policies, economic strategies, and even military operations. Artificial systems play the role of ＂social laboratories＂ in which decisions are computed before they are executed in our physical society. Afterwards, decisions with the expected outputs are executed in parallel in both the artificial and physical systems to interactively sense, compute, evaluate and adjust system behaviors in real-time, leading system behaviors in the physical system converging to those proven to be optimal in the artificial ones. Thus, the smart guidance and management for our society can be achieved.
the brake system is meeting with an important opportunity and challenge with the research of the civil aircraft *** paper describes the main techniques of the brake system for the famous civil aircraft A380 and *** po...
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the brake system is meeting with an important opportunity and challenge with the research of the civil aircraft *** paper describes the main techniques of the brake system for the famous civil aircraft A380 and *** points out the developing trend of civil aircraft brake system,including the electric brake technology,the auto-brake technology,the advanced control law or control policy,the system integration technology,the redundant control,the fault detection,the system reconfiguration technology,the green taxiing control and the brake system auxiliary *** the difference of here and abroad advanced technology,some viewpoints about the development of aircraft brake system are proposed.
This paper design controller for the uncertain neutral delay system. The uncertain neutral delay system includes norm bounded uncertain system parameters and unknown constant delay. The paper uses uncertain neutral sy...
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This paper design controller for the uncertain neutral delay system. The uncertain neutral delay system includes norm bounded uncertain system parameters and unknown constant delay. The paper uses uncertain neutral systems with structural features, and constructs appropriate Lyapunov function to obtain feedback control law. Compared with the previous methods for solving the Riccati equation, this method overcomes the shortcoming of Riccati equation emphasizing the center solution. Simulation results show that, the conservatism of the controller designed in this paper is reduced, and the controller easy to operate and application.
With the rapid development of smart home,a cheap and intelligent music system which is easy to install and operate will be of great *** this paper,the STM32F407ZET6 is used as micro-controller core of the control by t...
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With the rapid development of smart home,a cheap and intelligent music system which is easy to install and operate will be of great *** this paper,the STM32F407ZET6 is used as micro-controller core of the control by the music *** decoding module,SD card,Bluetooth audio receiver,radio module,audio source selection module,po-wer amplifier,*** included in this *** intelligent music system can achieve multi sound source input function and selection of the music playback mode including local music playback in SD card,mobile phone APP control by WIFI wireless module,handheld devices with *** high fidelity amplifier circuit design,sound quality is *** it has the radio function for *** integrated debugging of software and hardware,the music system can meet the requires of the design.
A vision-guided control method using omnidirectional vision system is proposed. And it not only controls the position and pose of two mobile robots, but also tracks a predefined geometric trajectory. Firstly, an image...
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A vision-guided control method using omnidirectional vision system is proposed. And it not only controls the position and pose of two mobile robots, but also tracks a predefined geometric trajectory. Firstly, an image-based visual servoing control model is presented. Then, a nonlinear input-output feedback linearization control method is proposed to keep pose and track various types of given path, e.g. line, circle. Moreover, the control algorithm only utilizes the estimations of the external input term, which can be calculated by employing the leader's acceleration during the motion. Furthermore, the stability of the control system is analyzed. Finally, some experimental results prove that the proposed approach effectively achieves the desired control and trajectory tracking by only using local vision information.
A novel attitude tracking control methodology of a 3-DOF helicopter is presented in the presence of actuator saturation and model uncertainties. The proposed control approach consists of an unconstrained controller an...
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ISBN:
(纸本)9781467374439
A novel attitude tracking control methodology of a 3-DOF helicopter is presented in the presence of actuator saturation and model uncertainties. The proposed control approach consists of an unconstrained controller and a nonlinear anti-windup compensator(AWC). The backstepping control technique is first applied to the unconstrained controller to achieve the tracking control objective for the nominal nonlinear model of the helicopter. Then, a nonlinear disturbance observer is proposed to estimate the parametric uncertainties and external disturbances. The globally uniformly ultimately boundedness of the unconstrained controller is illustrated through theoretical analysis. Finally, to deal with the actuator saturation, a nonlinear AWC is derived,which simultaneously guarantees a region of stability and the closed loop performance for tracking control. Simulation results on the 3-DOF helicopter verify the effectiveness of the proposed method.
Stratospheric satellite driven by the steady prevailing winds in the stratosphere must be controlled in its longitudinal excursion to keep a latitudinal orbital flight. In a reliable and high-precision control system,...
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ISBN:
(纸本)9781467374439
Stratospheric satellite driven by the steady prevailing winds in the stratosphere must be controlled in its longitudinal excursion to keep a latitudinal orbital flight. In a reliable and high-precision control system, an available system model must come first. In this paper, we proposed a 6 degree-of-freedom(DOF) model for a novel stratospheric satellite which consists of a high-altitude helium balloon, a framework and two vector-motor-driven propellers. Modeling is based on Newton-Euler formulation, where the additional inertial effect of the huge balloon volume are in consider. Then a series of open-loop control simulations are completed to verify the effectiveness of the model in the performance of longitudinal dynamics, lateral dynamics and yawing of the stratospheric satellite.
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