【摘 要】
：
In the past three decades, fractional calculus has attracted great interest of researchers in many areas.At the same time, some fractional nonlinear systems have been found to exhibit chaos and hyperc
【机 构】
：
山东省烟台市芝罘区二马路188号研一队 山东省烟台市芝罘区二马路188号基础部
【出 处】
：
第十一全国博士生学术年会——信息技术与安全专题
论文部分内容阅读
In the past three decades, fractional calculus has attracted great interest of researchers in many areas.At the same time, some fractional nonlinear systems have been found to exhibit chaos and hyperchaos.As a result,control and synchronization of these fractional chaotic systems, which have potential applications in secure communications, data encryption, and so on, become a novel and essential topic.In this paper, we investigate the control problem and synchronization issue of fractional chaotic systems which can be converted into the so-called general strict-feedback form via backstepping design.Firstly, based on the continuous frequency distributed model of the fractional integrator and control Lyapunov functions, stabilizing controllers are designed respectively for control and synchronization of fractional chaotic Genesio-Tesi systems.Further, the parameters in the systems are assumed to be unknown, which is usual in real world applications.To tackle with synchronization between the fractional chaotic Genesio-Tesi systems with fully unknown parameters, adaptive backstepping control design is proposed.This approach offers a systematic design procedure for control of a variety of fractional systems which can be transformed into the strict-feedback form.It only requires only a single controller.Finally, numerical simulations are performed to show the viability and effectiveness of the approach.
其他文献
本文拟对建国初期(1949～1955年)梁思成关于中国建筑史研究的理论著述进行纵向历时性地比较研究,进而理清其史学思想在此期间调整、转变的脉络，认为新中国成立初期梁思成中国建筑史研究的特征主要体现在以下两个方面:运用唯物史观对中国建筑的发展及动力进行重新的阐释；唯物史观理论包装的简单化、快速化。
本文从皖南民居的传统生态观出发,以建筑生态节能为角度,分析皖南民居采用的被动式节能技术,并以此为研究基点,从民居独特的天井布局,建筑构造及建筑材料的选择分析入手,揭示了它在充分利用自然环境条件下,在采光通风,选材构造、保温隔热等方面体现出的生态节能理念以及传统建筑文化脉络.为当代民居设计、构思、建造提供借鉴,让优秀的中华传统建筑技艺更好的传承和发扬光大.
云计算技术的发展使得云环境中服务资源不断增多,用户面临如何快速选择所需要服务的困难.现有的服务选择方法多是从单个用户角度出发进行的服务选择,当多个用户进行服务选择时,由于每个用户"自私"的选择最优服务易造成最优服务过载,性能下降.服务提供商作为资源的拥有者,能够对资源进行统一规划将用户引向与其QoS约束相匹配的服务上,以使得全网资源得到均衡.基于这一思想,本文从服务提供商的角度出发,使用扩展二分图
"测试判定问题"(Test Oracle Problem)是影响软件测试技术发展的瓶颈问题之一.1998年T.Y.Chen教授针对该问题提出了软件蜕变测试技术,从而为解决该难题提供了一种有效的途径.蜕变测试技术经过二三十年的发展,已经在不同领域的软件测试中取得了重大的应用突破,并且针对科学计算、智能决策、地形量算、机器学习、面向服务软件等不同类型软件和程序形成了相应的蜕变关系集合,为蜕变测试的复用
Due to forward-secure-digital-signatures capability of effectively reducing loss caused by exposure of secret keys and significant in-application benefits of blind signature aiming at protecting sende
A visual cryptography scheme (VCS) encodes a secret image into several share images, such that stacking sufficient number of shares will reveal the secret while insufficient number of shares provide n
Radio Frequency Identification (RFID) technology has been widely applied in many scenarios such as inventory control, supply chain management due to its superior properties including fast identificati
In this manuscript, a novel and economical scheme for quantum information splitting of an arbitrary N-qubit state (N≥ 1) is investigated.Instead of multi-qubit entangled states, the maximally entangle
A type of chaotic encryption scheme by combining circular bit shift with XOR operations was proposed in 2006 based on iterating chaotic maps.Soon after the proposal, it was cryptanalyzed and improved.
In this paper, we firstly introduce the definition of uniformly similar, and revise the adiabatic theorem of the Schr(o)dinger equation in Ref.[7] which is driving by Hermitian Hamiltonian, and then d