蔡氏电路matlab仿真代码混沌吸引子 适用于某些三阶混沌系统的Python脚本(Lorenz吸引子,Nose-Hoover振荡器,Rossler吸引子,Riktake模型,Duffing映射等) 主要资讯 标题 分析和建模混沌系统 作者 亚历山大·卡皮塔诺夫 接触 lang项目 的Python 3 初版 2019年5月30日 执照 GNU GPL 3.0。 依存关系 项目要求: Python(> = 3.6) NumPy(> = 1.19.0) 科学(> = 1.5.1) 熊猫(> = 1.1.0) Matplotlib(> = 3.2.2) Pytest(> = 5.4.3) 预先提交(> = 2.6.0) 混沌模型(示例) 洛伦兹吸引子: dx/dt = sigma * (y - x) dy/dt = rho * (x - z) - y dz/dt = x * y - beta * z 其中sigma = 10,rho = 28,beta = 8/3。 罗斯勒吸引子: dx/dt = -(y + z) dy/dt = x + a * y dz/dt
2022-03-21 17:46:59 3.74MB 系统开源
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用欧拉法和龙格库塔算法求解洛伦兹模型测试。这个模型对初始条件非常敏感,我们尝试在不同的初始条件下得到结果。 最后你可以看到蝴蝶图。 Matlab 或 Octave
2022-03-20 23:04:16 1KB matlab
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为解决视频信息的安全问题,研究了一个基于Lorenz混沌系统的视频加密方案。该方案首先将三维Lorenz混沌系统进行离散化处理,然后运用驱动式响应同步的方式进行同步处理,对随机采集到的AVI视频文件进行混沌加密。通过采用Matlab仿真软件,编写相应的加解密程序进行仿真,最后,对仿真实验结果进行分析,结果表明该方案具有安全性高、灵活性好的特点。
2022-03-18 17:13:45 273KB 数码影像
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这本书包括了PDF和本书的代码,下面是内容摘要 As a leading cross-platform toolkit for all significant desktop, mobile, and embedded platforms, Qt is becoming more popular by the day. This book will help you learn the nitty-gritty of Qt and will equip you with the necessary toolsets to build apps and games. This book is designed as a beginner's guide to take programmers that are new to Qt from the basics, such as objects, core classes, widgets, and so on, and new features in version 5.4, to a level where they can create a custom application with best practices when it comes to programming with Qt. With a brief introduction on how to create an application and prepare a working environment for both desktop and mobile platforms, we will dive deeper into the basics of creating graphical interfaces and Qt's core concepts of data processing and display before you try to create a game. As you progress through the chapters, you'll learn to enrich your games by implementing network connectivity and employing scripting. Delve into Qt Quick, OpenGL, and various other tools to add game logic, design animation, add game physics, and build astonishing UIs for games. Toward the end of this book, you'll learn to exploit mobile device features, such as accelerators and sensors, to build engaging user experiences.
2022-01-28 16:25:53 9.98MB QT 游戏编程 初学者 C++
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鉴于传统图像加密技术和低维混沌加密技术各自的局限性,将Lorenz 混沌系统与数字图像置乱技术相结合,设计了一种基于三维混沌系统的数字图像加密算法.首先,对系统输出的实数值混沌序列进行预处理;其次,以此实数值混沌序列直接构造图像置乱索引矩阵;最后,以8×8 块为单位实现数字图像的空域加密,分析与仿真结果表明:预处理后的实数值混沌序列具有更强的伪随机特性,更理想的相关特性;三维混沌系统有更大的密钥空间,使算法具有很强的抗破译性和抗攻击性;系统三维输出的同时利用,可实现三个或多幅图像的并行加密,提高了算法的加
2021-12-29 11:10:26 135KB 自然科学 论文
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This, Reader, is an honest book. It warns you at the outset that it is not a treatise on stochastic volatility. Nor is it a mathematical nance textbook – there are treatises and textbooks galore on the shelves of bookshops and university libraries. Rather, my intention has been to explain how stochastic volatility – and which kind of stochastic volatility – can be used to address practical issues arising in the modeling of derivatives. Modeling in nance is an engineering eld: while our task as engineers is to frame problems in mathematical terms and solve them using sophisticated machinery whenever necessary, the problems themselves originate in the form of embarrassingly practical trading questions.
2021-12-19 18:41:50 100.34MB Stochastic
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S盒又称为置换盒,是许多分组密码算法中唯一的非线性部件,它的密码强度决定了整个密码算法的安全性。一个好的S盒对于安全系统来说是至关重要的,因此提出了一种基于混沌Lorenz系统的S盒设计方法,并对S盒的双射性、非线性度、严格雪崩准则、输出比特间独立性和差分均匀性进行了测试和分析。分析结果表明:利用该算法产生的S盒具有很好的密码学特性,适用于开发新的分组密码算法。
2021-12-13 22:36:08 952KB 自然科学 论文
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4.05.RK45-Lorenz-系统 自适应时间步长求解Lorenz方程
2021-11-30 08:35:23 5KB Fortran
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matlab开发-LorenzPhasePortrait。绘制洛伦兹系统的相位图。
2021-11-21 17:29:24 2KB 未分类
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对类Lorenz系统的状态变量加上时滞得到一个泛函微分动力系统――时滞类Lorenz系统.首先给出了该系统仅存在零平衡点的条件,然后根据系统在零平衡点处的线性化系统对应的特征方程根的分布情况,给出了系统在零平衡点处稳定性和发生Hopf分支的条件,最后通过一些数值模拟验证了所得结论的正确性.
2021-11-17 13:51:08 276KB 自然科学 论文
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