yaojin

code for computing the entropy of gray scale image, including to calculate the local entropy (especially for matlab 7.0 and lower that dont have entropy and entropyfilt function)

model simulink of 10 bit pipelined adc

通过matlab编程对槽轮机构进行运动分析，计算出其运动参数。(Matlab programming by agencies of the grooved wheel motion analysis, calculate its motion parameters.)

特徵粹取（feature extraction）是特徵選取（feature selection）的延伸，簡單地說，我們希望將資料群由高維度的空間中投影到低維度的空間，因此，我們必須找出一組基底向量（base）來進行線性座標轉換，使得轉換後的座標，能夠符合某一些特性。 我們可以將特徵粹取分成「包含類別資訊」和「不包含類別資訊」兩大類。包含類別資訊指的是我們已經知道哪些資料分別歸屬於哪一類；而不包含類別資訊的特徵粹取則適用於我們不知道手上的資料點分別該歸屬於哪一類，甚至連該劃分成幾類都不知道的情況。對於這兩大類資料，可以分述如下： 對於「不包含類別資訊」的資料，我們通常使用「主要分量分析」（principal component analysis），簡稱 PCA。 (Cuiqu features (feature extraction) is feature selection (feature selection) extension, simply put, we want to base the projection data the high-dimensional space to low-dimensional space, so we have to find a set of basis vectors ( base) to the linear coordinate conversion, so that after the coordinate conversion, can meet a number of features. We can feature Cuiqu into " category contains information" and " does not contain a category of information," two categories. Contains categories of information refers to what we already know what kind of information are attributed to Cuiqu features include categories of information are not applicable to information we do not know the points are in the hands of the home in which category, and even that is divided into several class do not know the situation. For these two categories of information, can be divided as follows: For information " does not include the categories of information" , we usually use the " )

这是基于matlab的关于LPCC (Linear Predictive Cepstral Coding)(线性预测倒谱系数) 的代码，对大家理解有一定帮助。(This is based on the matlab LPCC (Linear Predictive Cepstral Coding) (Linear Predictive Cepstral) code for us to understand some help.)

利用龙格库塔法解布洛赫方程 有较为详细的注释 简单易懂(Solving Bloch Equation by Runge-Kutta Method)

通信仿真，二元位信号通过加性高斯白噪声的信道，经过匹配滤波，最大后验概率和最大似然概率检测比较(Communication simulation, binary bits signals through the additive gaussian white noise, through the channel is matched filtering, maximum a posteriori probability and the maximum likelihood detection probability)

说明：  此文件为Matlab编的一个基本pso算法，所用测试函数为 Rastingin(Matlab prepared this document for a basic PSO algorithm, used in the test function Rastingin)

说明：  信号时序幅频仿真图(timing signal amplitude and frequency simulation map)

小波变换的EZW源码，官方代码，绝对能运行，绝对是经典代码(source code of EZW, the wavelet transformation.)