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matlab 实现c均值算法实现对样本库进行分类，样本库随程序一起上传。(c-means in sorting)

四旋翼仿真的经典必看文章。很不容易下载到的。包括6个自由度的仿真，模糊pid控制等。希望对大家有用。(Four-rotor simulation of the classic must-see article. Very easy to download. Including six degrees of freedom simulation, fuzzy pid control. I hope to be useful.)

说明：  数字信号处理设计与仿真分析 (1)建立两个模拟信号的数学模型 sa1(t)和 sa2(t)， 其中 sa1(t)是有用信号， sa2(t)是干 扰信号。 两个信号的中心频率、信号带宽等参数由学生自己选定，要求两个信号的频谱不重 叠， sa2(t)的幅度比 sa1(t)的幅度高 20dB， 两个信号时域叠加得到合成信号 xa(t)， 即 xa(t)= sa1(t)+ sa2(t) 设计计算机程序仿真产生 sa1(t)、 sa2(t)、 xa(t)信号， 分别画出三个模拟信号的时域波 形和频谱图；(Establish two mathematical models of analog signals sa1(t) and SA2 (t), where SA1 (t) is the useful signal and SA2 (t) is the dry signal Interference signals.)

脉冲编码调制(PCM)实现 编程实现PCM技术的三个过程：采样、量化与编码。 采样：低通连续信号采样，以 x=sin(200*t) m=x./(200*t) m=m.*m 为例说明低通采样定理，绘出信号时、频图形；带通连续信号采样，以x=sin(20*t) m=x./t 为例说明带通采样定理，绘出信号时、频图形。 量化：均匀量化，以幅度 的正弦信号为例实现为64级电平的均匀量化；非均匀量化，输入A律PCM编码器的正弦信号 ，采样序列为 ，将其进行PCM编码，给出编码器的输出码组序列 编码：以上述信号为例，实现A律的13折线近似法及国际标准PCM对数A律量化编码。(Pulse code modulation (PCM) to achieve PCM technology programming three processes: sampling, quantization and coding. Sample: low-pass continuous signal sampling to x = sin (200* t) m = x./(200* t) m = m.* m an example low-pass sampling theorem, draw the signal, frequency graphics bandpass sampling continuous signals to x = sin (20* t) m = x./t an example bandpass sampling theorem, draw the signal, frequency graph. Quantization: uniform quantization, in order to realize the magnitude of sinusoidal signal as an example for the 64 level uniform quantization non-uniform quantization, input A law PCM encoder sine signal, the sampling sequence, to be PCM encoded, the encoder is given The output code sequence Code: A Case Study of the signal to achieve the 13 A line approximation law and international standards on the number of A law PCM coding quantization.)

2005-Boukhezzar-Nonlinear Control of Variable Speed Wind Turbines for Power Regulation.pdf

this code to enhanc grayscale images

一种传统搜索优化算法 不需要对目标函数求导 得到很好的优化效果(A traditional search algorithm does not need to differentiate the objective function ,also gets well optimized results)

This document is useful for hearing sound classification

《Experiments with MATLAB》这本书的程序源码，附中文注释，简单易懂，是学习MATLAB编程语言的极好方式。(" Experiments with MATLAB" This book is Open Source, with Chinese notes, easy to understand, is an excellent way to learn MATLAB programming language.)

solving job shop scheduling problem with setup times by Tabu Search Algorithm