分数阶统一混沌系统matlab程序
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基于小波和分数阶傅里叶变换的混沌图像加密Chaotic Image Encryption Based on the Wavelet and Fractional Fourier TransformAbstract: In order to get a better encrypted effect and efficiency, in this paper, a new approach of chaotic image encryption based on the wavelet and fractional Fourier transform is proposed to realize multiple encrypted. Encryption process consists of three steps:First, the pixel value of an image is disturbed by the chaotic sequence. Afterwards, the confusion image is dealt with wavelet decomposition and then the low-frequency component is encoded by using the fractional Fourier transform. The final encrypted image is obtained by scrambling the image with 2D cat map in fractional Fourier transform domain. Simulation experimental results have successfully demonstrated the proposed method can improve the effect of image encryption with superior security.Key words: Fractional Fourier transform; Wavelet decomposition; Chaotic encryption; Logistic map; 2D cat map数字图像是是目前最流行的多媒体形式之一,许多重要信息要以数字图像的形式传输。
分数阶混沌系统的Simulink动态仿真及硬件没计杨宏;李亚安;李国辉;林关成【期刊名称】《计算机工程与应用》【年(卷),期】2010(046)008【摘要】由于目前分数阶混沌的理论分析和硬件设计都比较烦琐,提出了分数阶混沌系统的Simulink动态仿真方法.以分数阶Jerk系统为例,根据分数阶系统方程搭建分数阶混沌系统仿真模型,可动态地观察系统变量的变化规律.仿真结果表明,分数阶混沌系统的simulink动态仿真方法是一种切实可行的分析方法.此外,还给出了分数阶混沌系统直接进行硬件设计的方法,这为分数阶混沌系统的数字设计提供了新的思路.【总页数】3页(P61-63)【作者】杨宏;李亚安;李国辉;林关成【作者单位】西北工业大学,航海学院,西安,710072;西安邮电学院,电子工程学院,西安,710061;西北工业大学,航海学院,西安,710072;西北工业大学,航海学院,西安,710072;西安邮电学院,电子工程学院,西安,710061;西北工业大学,航海学院,西安,710072;渭南师范学院,传媒工程系,陕西,渭南,714000【正文语种】中文【中图分类】TN75【相关文献】1.分数阶混沌系统的动态仿真方法研究 [J], 孙克辉;任健;尚芳2.电铲工作装置EDEM-Adams-Simulink联合动态仿真 [J], 邹伟; 程书培; 杨磊; 周航3.基于Matlab/Simulink的ADSR堆芯动态仿真实验设计 [J], 曾文杰;李楚豪;罗润;陈乐至;谭旭;杜尚勉4.机械振动的Matlab/Simulink动态仿真及可视化研究 [J], 马建立;付志粉5.机械振动的Matlab/Simulink动态仿真及可视化研究 [J], 马建立;付志粉因版权原因,仅展示原文概要,查看原文内容请购买。