matlab的直接序列扩频通信系统仿真

harris角点检测算法，代码可以通过修改sigma, thresh, radius, disp的值控制角点数量。(harris corner detection algorithm, the code can be by modifying the sigma, thresh, radius, disp corner of the value of quantity control.)

随机信号功率谱分析 (1) 生成信号，被淹没在在噪声中； (2) 试用周期图法估计信号的功率谱； (3) 选用不同窗，使用修正周期图法估计信号的功率谱； (4) 对一段语音信号，使用LD算法估计其功率谱； (5) 详细列出功率谱估计的步骤和原理。 (power spectral analys)

说明：  将girl 图像进行分割，达到2*4的图像分割结果。并使用tight_subplot函数将分割间距变小。(The girl image is segmented to achieve a 2*4 image segmentation result. And use the tight_subplot function to make the division interval smaller.)

数字图像处理（MATLAB版），刚萨拉斯著，书上相关程序(Digital Image Processing (MATLAB ), by Gonzalas, the relevant procedures on the book)

这是一个非常适合初学者的Matlab教程，里面讲的东西简洁明了，而且可以作为教学用。(This is a tutorial for beginners in Matlab, which was about things concise, and can be used as a teaching.)

程序100例各种常用例子 有助于初学者学习(Examples of 100 cases of various common procedures will help beginners to learn)

fit_ML_rayleigh - Maximum Likelihood fit of the rayleigh distribution of i.i.d. samples!. Given the samples of a rayleigh distribution, the PDF parameter is found fits data to the probability of the form: p(r)=r*exp(-r^2/(2*s))/s with parameter: s format: result = fit_ML_rayleigh( x,hAx ) input: x - vector, samples with rayleigh distribution to be parameterized hAx - handle of an axis, on which the fitted distribution is plotted if h is given empty, a figure is created. output: result - structure with the fields s - fitted parameter CRB - Cram?r-Rao Bound for the estimator value RMS - RMS error of the estimation type- ML

说明：  Matlab编程手册，一些编程的问题基本都能在这解决。(Matlab programming manual, some basic programming issues to resolve in this can.)

模拟透镜真实光路,厚的凸透镜，无小角度近似，使用真实光路追踪(Analog lens true optical path, the thickness of the lenticular lens, no small angle approximation, using the true optical path trace)

matlab_基于象素的图像配准程序 matlab_基于象素的图像配准程序(matlab_ pixel-based image registration procedures matlab_ pixel-based image registration procedures)