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This paper deals with the H∞ control for a class of continuous-time networked control systems based on continuous-time Markov chains. Firstly, with controller switching strategy, a class of linear continuous-time networked control systems are modeled as continuous-time Markov jump linear systems. Secondly, using the Lyapunov functional approach, sufficient conditions on the existence of an H∞ controller...
In cognitive radio networks, unlicensed users can use under-utilized licensed spectrum to achieve substantial performance improvement. To avoid interference with licensed users, unlicensed users must vacate the spectrum when it is accessed by licensed (primary) users. Since it takes some time for unlicensed users to switch to other available channels, the ongoing data transmissions may have to be...
A nonlinear sliding mode in an optimal fashion is designed for nonlinear systems affected by uncertainties. A quadratic performance index is given and an optimal nonlinear switching manifold is obtained. The switching manifold obtained consists of analytic terms and a compensation term which is the limit of the adjoint vector sequence. The analytic terms can be found by solving a Riccati matrix equation...
The optimal sliding mode control (OSDC) for nonlinear discrete-time systems with infinite horizon quadratic performance indexes is considered. The optimal control law for general nonlinear system with quadratic index is given in terms of solution to the HJB(Hamilton-Jocabi-Bellman) equation or the nonlinear TPBV (Two Point Boundary Problem) problem. In the optimal sliding surface designing process,...
Multilevel inverters have been used widely because of their high power capability, lower output harmonics and lower commutation losses and so on. Their main disadvantage is their complexity, requiring a great number of power devices and complex control method. In this paper, a new topology is proposed based on H-bridge cascaded inverter. The new topology produces a significant reduction in the number...
High density, large bandwidth and lower power consumption link and switch inter-system is required. Short-distance parallel optical link has become the hotspot of research because of its advantage compared with electrical link. Board communications have received a lot of attention. Most of the recent developments target 10Gbps-class systems such as super computers or high-speed IP switches. This paper...
Wireless sensor network (WSN) is considered as one of the most important techniques in the 21st century. However, wireless sensor network operating system (WSNOS) is the core and also the essential part of the WSN system, and its high efficiency and flexibility directly impact on the performance of the real-time system. Our Liaoning Provincial Key Embedded Technology Institute has achieved great results...
Batteries are widely used in quite a few areas, including in the electric auto industry. As the voltage of the batteries are ever-changing, which drops from a high value to a low value, kinds of regulators are utilized to keep the output voltage changing in an acceptable scope. However, the stress on switches produced by the currents in the circuits is much stronger than the capabilities of the switches,...
The game with partial cooperation with perfect information in extensive form is researched in this paper. Characteristic functions are defined for each coalition based on unified principle, which are not necessarily supper additive. A new principle of optimal behavior in such game is established, based on the nucleolus as optimality principle for the allocation of coalitional payoff. Algorithm of...
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