huffmanencode

FDTD for Wave equation3

matlab对aloha，s-aloha，csma的仿真(matlab pairs of aloha, s-aloha, csma Simulation)

MATLAB文件。《超宽带无线电基础》配套程序，第二章第一个例程。用于产生PPM编码。(MATLAB file. Ultra-wideband radio base matching program, the first chapter of a routine. PPM for generating code.)

说明：  its a matlab code for face recognition and windows systtem

说明：  BP算法是为了解决多层前向神经网络的权系数优化而提出来的；所以，BP算法也通常暗示着神经网络的拓扑结构是一种无反馈的多层前向网络(BP algorithm is to solve the multi-layer feedforward neural network weights optimization and put forward Therefore, BP algorithm usually implies that the topology of neural network is a multi-layer feedback-free network)

航空飞行器惯性导航的数学建模与实时系统仿真(Aviation aircraft inertial navigation Mathematical Modeling and Simulation of real-time systems)

NAKAGAMI FADING COEFFICIENT

说明：  拉普拉斯变换的反演是求解复杂线性系统的一个重要步骤 函数f（t）=INVLAP（f（s））提供了一种简单、有效和合理准确的方法来实现结果。(The inversion of Laplace transform is an important step in solving complex linear system The function f (T) = invlap (f (s)) provides a simple, effective, reasonable and accurate method to achieve the results.)

模糊数学一般的教程，内容详尽，可靠 模糊分析。(Fuzzy general tutorials, detailed, and reliable fuzzy analysis.)

这是我本科毕业设计论文《基于混沌序列的加密图像隐藏技术的设计与实现》，就是把一张图片加密后隐藏在载体图像中，可以抵御各种攻击，用到了Matlab，里面包括开题报告，论文，可执行程序。本文系统介绍了混沌加密、信息隐藏技术。归纳了混沌加密、信息隐藏的分类、特性与应用，给出了混沌加密、信息隐藏的原理和基本框架以及其性能的评价方法，介绍了几种图像的攻击方法。实现了一种混沌加密和图像隐藏的方法。使用混沌加密对待隐藏图像进行加密后嵌入载体图像中，并对嵌入待隐藏图像的载体图像进行了几种攻击以验证其鲁棒性。本系统运用MATLAB编程实现对图像的混沌加密，运用LSB算法将加密后图像嵌入载体图像中，并能承受图像剪切，图像增亮，图像变暗，增加对比度，减低对比度，添加积性噪声，添加高斯噪声，旋转45度，直方图均衡化等一定程度的毁损和各种攻击检测，仍然能解密得到原图像，原图像清晰可辨，鲁棒性非常好。总之本文较好的实现了基于混沌序列的加密图像隐藏技术。(This is my graduation design thesis Design and implementation of chaotic sequence image hiding technique based encryption is encrypted to hide the picture in the carrier image, can withstand a variety of attacks, uses Matlab, which includes opening report, thesis, an executable program. This article describes the chaos encryption system, information hiding technology. Summed up the chaos encryption, information hiding classification, characteristics and application, given the chaotic encryption, information hiding principle and basic framework and its performance uation methods, and introduces the method of attack several images. It implements a chaotic encryption and hidden image method. After using Chaotic Encryption treat hidden image encryption embedded vector images, vector images and embedded image to be concealed several attacks carried out in order to verify its robustness. This system using MATLAB programming chaotic image encryption, use LSB algorithm encrypted image is em)