writting-fast-matlab-code

正交频分复用其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。(Orthogonal Frequency Division Multiplexing)

说明：  matlab版本的标准互信息函数，用于聚类指标的计算，可直接使用(normalized mutual information function for clusering performance evaluation (MATLAB version))

世界潮汐模型，可以精确计算全球海洋潮汐的变化，非常实用(global sea level model)

本文针对基于经验模态分解ＥＭＤ的时空滤波器存在的固有模态函数分量中频率混叠交叉导致有用信号与噪声一起被滤除的问题结合小波在时间尺度两域表征信号局部特征的特性提出了一种基于能量估计实现ＥＭＤ分解层数确定(In this paper, based on empirical mode decomposition EMD temporal filter mode functions inherent component of cross-frequency aliasing and noise together lead to useful signal is filtered in the time scale of the problem combined with wavelet domain characterization of two local features of the signal characteristics of proposed achieve energy estimation based on EMD decomposition level determined)

工程经济串讲，关于工程经济自考的资料，对正在自考的人也许有用，所以上传上来啦！(Engineering Economic Chuanjiang, with regard to engineering economy Zikao information on the person being Zikao may be useful, so upload the Laila!)

所上传的文件时为了在MATLAB中求PSNR、归一化相关系数NC的值(have PSNR, NC values In MATLAB)

说明：  一个 实验报告 用于学习MATLAB 的 我是学习不久写出来的 希望那个能给大家提供帮助(WELL)

一则3维带理想导体边界的FDTD算法实例，老外编写的，注释很明了(A 3-D with a perfectly conducting boundary FDTD algorithm instance, foreigners written comments are clear)

程序实现了naive bayes classifier， 并附有对美国参议院根据投票情况来判断议员属于民主党还是共和党的例子。(Program achieved a naive bayes classifier, along with the U.S. Senate voting to determine under Democrat and Republican members belonging examples.)

WAVELET CODING FOR IMAGE