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MATLAB命令汇总~便于查询~十分有用~~~~~~~~~(MATLAB command summary ~ ~ very useful to facilitate inquiries ~~~~~~~~~)

 产生长度为1000的标准正太分布的随机信号，画出时域波形及频谱；  采用u=255的非均匀PCM编码，每符号为8bit，画输入-输出关系图；  计算信号量化噪声比（SQNR）；  信道误码率为10-3；  解码，并画出u律反变换后的信号时域波形及频谱。 扩展要求：  采用均匀PCM、量化级数可变、信道误码率可变。 ( have a standard length of 1000 is too random signal distribution, draw time-domain waveform and frequency spectrum  u = 255 using the non-uniform PCM encoding, each symbol for 8bit, drawing input- output relationship diagram  calculated quantization noise signal than (SQNR)  channel bit error rate of 10-3  decoder, and law to draw u the signal after the inverse transform time-domain waveform and frequency spectrum. Expansion of the requirements:  uniform PCM, quantization level variable, a variable channel bit error rate.)

用Gauss_Seidel迭代法来求解方程组的解的程序(With Gauss_Seidel iterative method to solve the solution of system program)

收集的一组跟噪声产生以及消除、衡量消噪性能指标的MATLAB仿真源代码，每个文件夹下都附有对该代码的注解！(gathered with a group and the elimination of noise, the weighing-noise performance indicators MATLAB simulation source code, Each folder with all of this code notes!)

GAUSSIAN COPULA ESTIMATION

MATLAB粗糙集属性约简库（内含实例，原创） 函数M文件： TargetOptFcn.m ------------ 遗传算法的目标函数 PositiveRegion.m --------- 计算正域 LowerApproximation.m ------ 计算下近似 IsSub.m ------------------- 判断集合A是否是集合B的子集 EquivalentClassSet.m ----- 基于R分类的所有等价类的集合，即U/R EleEquivalentSet.m ------- 计算包含某元素的一个分类 DependencyDegree.m -------- 计算依赖度 (MATLAB rough set attribute reduction library (including examples, original) The function M file: TargetOptFcn.m---------------- The objective function of genetic algorithm PositiveRegion.m-------------- Computing positive region LowerApproximation.m---------- Calculation of approximation IsSub.m----------------------- Judgment if set A is a subset of the set B EquivalentClassSet.m---------- A collection of all the equivalence classes based on R classification, U/R EleEquivalentSet.m------------ Calculation contains an assortment of an element DependencyDegree.m------------ Dependence computation)

本文的程序实现在屏幕上随机产生不同大小的雪花，并以不同的速度下降。相对于第一版，它在很多性能上做了优化，直接在桌面的上下文中绘制雪花。而且，现在也通过RedrawWindow，实现在桌面的图标(如任务栏)上绘制雪花了。你可以用它来学习GDI。(Falling Snow on Your Desktop! Part II This article explains how to create an application that makes it snow on the desktop. Since my previous article was published, I received many user inquiries about how to improve the program. This article demonstrates how to create snow flakes that fall on your desktop, by using the draw functions directly in the desktop context. When the application starts, it creates an array of snow flakes and starts the timers for each flake. Manipulation of the RedrawWindow function allows the drawing of flakes behind and over the desktop icons, making the application more impressive. )

文件夹中包含了一些有关matlab的相关资料，简单易懂，非常适合初学者学习(Folder contains some relevant information related to matlab, simple to understand, very suitable for beginners to learn)

计算信号的魏格纳分布。 用法见函数说明。(Calculate the signal Wigner. Usage See function description.)

爬山法提取窗户，源数据是地面激光扫描点云(Hill climbing method to extract the windows, the source data is a ground-based laser scanning point cloud)