三种熵

说明：  高质量的OFDM仿真代码，有误码率仿真图。非常好用。(OFDM simulation of high-quality code, bit error rate simulation map. Very easy to use.)

说明：  珍藏版，可实现，新K均值聚类算法，分为如下几个步骤： 一、初始化聚类中心 1、根据具体问题，凭经验从样本集中选出C个比较合适的样本作为初始聚类中心。 2、用前C个样本作为初始聚类中心。 3、将全部样本随机地分成C类，计算每类的样本均值，将样本均值作为初始聚类中心。 二、初始聚类 1、按就近原则将样本归入各聚类中心所代表的类中。 2、取一样本，将其归入与其最近的聚类中心的那一类中，重新计算样本均值，更新聚类中心。然后取下一样本，重复操作，直至所有样本归入相应类中。 三、判断聚类是否合理 采用误差平方和准则函数判断聚类是否合理，不合理则修改分类。循环进行判断、修改直至达到算法终止条件。(NewK-means clustering algorithm ，Divided into the following several steps: A, initialize clustering center 1, according to the specific problems, from samples with experience selected C a more appropriate focus the sample as the initial clustering center. 2, with former C a sample as the initial clustering center. 3, will all samples randomly divided into C, calculate the sample mean, each the sample mean as the initial clustering center. Second, initial clustering 1, according to the sample into the nearest principle clustering center represents the class. 2, as this, take the its recent as clustering center of that category, recount the sample mean, update clustering center. And then taking off, as this, repeated operation until all samples into the corresponding class. Three, judge clustering is reasonable Adopt error squares principles function cluster analysis.after clustering whether reasonable, no reasonable criterion revisio)

用于计算表面粗糙度功率谱密度，及将二维功率谱密度转换为一维功率谱密度(It is used to calculate the power spectral density of surface roughness and transform the two-dimensional power spectral density into one dimensional power spectral density.)

用matlab7.0软件对通信信号进行调制数字通信系统通信系统调制解调(PL_FSK)VHDL建模,包括发送和接受模块PL_FSK(good)

利用乘幂法求解矩阵A=[6，-11,6 1,0,0 0,1,0]的特征根（1,2,3）(solve the characteristic roots of array: A = [6,-11,6 1,0,0 0,1,0] by using matrix power method the root=(1,2,3))

GMSK的matlab课程设计，有详细的课程设计文档和调制程序(GMSK in matlab curriculum design, a detailed course design documents and modulation procedures)

在启动Matlab的时候拍一张照片 记录每天的心情( Matlab when you start to shoot a photo Recorded daily mood)

PCM编解码源程序 很好的程序。谢谢大家进行参考。(PCM codec good source procedures. Thank you for your reference.)

Image Halftoning by Jarvis Method

实现基本MUSIC算法,加入高斯白噪声,完成信号来波方向的精确定位(achieve basic MUSIC, by adding Gaussian white noise, the complete signal wave direction to the precise location)