stft2

matlab编程计算结构系统的频率响应程序(matlab program to calculate the frequency response of structural systems)

非线性振动必备工具箱，里面有详细的步奏讲解,频谱分析，poincare截面，分岔图，李雅普洛夫图(onlinear vibration necessary toolbox, There are detailed explanations of the steps for spectrum analysis, poincare section, bifurcation diagram and lyapunov figure )

是在MATLAB中很简单的绘制平面三角形的程序源代码，简洁，易懂。(MATLAB is a very simple drawing plane triangle of the source code, simple, easy to understand.)

this file is about fuzzy logic system

说明：  matlab_bgl图论工具箱下载，功能强大,用于复杂网络(Download Matlab Graph Theory toolbox, powerful function)

根据)EF 特性中的对比度敏感度， 即空间频率特性曲线，对图像进行二维多级小波分解，由分解后的各小波分量，提取各频段相应的亮 度、清晰度和相关度指标；然后将这三个指标的几何平均与频段加权系数的内积做算术平均，以此作 为图像质量的综合评价指标(According to) EF characteristic of contrast sensitivity, that is spatial frequency characteristic curve, the image is two-dimensional multi-level wavelet decomposition, the decomposition of the wavelet component, extract the frequency band corresponding brightness, clarity and relevance of indicators then the geometric mean of these three indices and the band doing weighted coefficient of the arithmetic mean within the product as a comprehensive evaluation of image quality index)

解释了MATLAB偏微分方程工具箱的成员函数和使用方法(Interpretation of the member functions and use MATLAB Partial Differential Equation Toolbox)

利用混沌系统给图像加密，加密方法简单易懂，对初学者很好理解(Image encryption using chaotic systems ，encryption method is simple and easy to understand, good for beginners to understand)

svm source code in matlab with pca

用MATLAB语言编程设计 本文介绍了一个用MATLAB语言编写程序，仿真通信实况从而达到研究连续信号数字化问 研究连续信号数字化问题 【摘要】题的目的。论述了的设计思想以及实现的方法，并谈到了计算机辅助教学的必要性。 【关键词】 数字化、MATLAB、连续信号 (using MATLAB programming This paper introduces the design of a MATLAB language programming, Fact communication simulation study in order to achieve continuous signal digital asked for study of digital signal problem [Abstract-- purposes. Discussed the design and the methods to achieve, and spoke of the need for computer-aided teaching. Key words : digital, MATLAB, continuous signal)