zhengtaihanshu

首先信号建模，两种频率的正弦信号叠加，加白噪声和脉冲信号；对叠加信号滤波并提取特征(First, signal modeling, the two frequencies of the sinusoidal signal superimposed with white noise and the pulse signal superimposed signal filtering and extract features)

Audio Feature Extraction routine. this routine extracts the attack time of an audio source, by extracting the timing (sample) of the highest peak. The archive inclues a routine to extract the fft and display it. Requires Voicebox for matlab.

常见canny, sobel 等算法的图像边缘检测比较(Edge Detection common canny, sobel algorithm comparison)

ssim structural similary measure

matlab code for hline and vline

采用热核构造权重，小波包分析提取振动信号中的特征频率，利用自然梯度算法。( Thermonuclear using weighting factors Wavelet packet analysis to extract vibration signal characteristic frequency, Use of natural gradient algorithm.)

This MATLAB m-file ferbsim.m is a simulation program for a rotating flexible beam attached to a base. The mathematicla model is created from ferobem.m as system mass and stifness matrices

计算光子晶体的程序，使用平面波展开法计算光子晶体带隙结构的程序。(pwe )

二分法，Newton迭代法和弦截法求方程根，并比较迭代次数。内含各种迭代法及数值加速方法的说明和比较。(Dichotomy, Newton iteration method for the equation of the root chord section, and compare the number of iterations. Includes a variety of accelerated iterative method and numerical description of the method and comparison.)

二维图像的读取，辨认，分析，并且用神经网络进行，判定哪些图片可以归为一类(Two-dimensional image reading, identifying, analyzing, and using neural network to determine which pictures can be classified as a class)