cov

LSH 和e2LSH算法，感觉hash函数不怎么好。(LSH and e2LSH algorithm, hash function is not very good feeling.)

说明：  fsk信号的调制与解调，通信领域其他各种调制方式可以参考此文件稍作修改(fsk signal modulation and demodulation, modulation communications can refer to various other minor modifications to this document)

说明：  kmeans函数：输入为类别数量k和数据矩阵A；输出为聚类结果A，和迭代次数，并将聚类结果数据以excel形式保存在工作路径下(k-means clustering algorithm error-free very practical)

It is a ant colony optimization based algorithms.

MATLAB应用接口 文件的输入输出 Notebook a ppt source(MATLAB interface Input/output file Notebook a ppt source)

一阶导数、二阶导数，矢量归一化（SNV），多元散射校正（MSC），数据中心化，直接信号校正，平滑处理六种光谱数据预处理的方法(A first derivative, second derivative, vector normalization (SNV), multiplicative scatter correction (MSC), the data center of the direct signal correction, smoothing six kinds of spectral data preprocessing methods)

视频读取及目标背景提取，matlab平台下可以对视频取帧(Read and goals video background extraction, matlab platform can take video frame)

matlab GUI 图像处理常用代码 文件打开 保存等基本功能(matlab GUI tuxiang chuli changyongdaima)

说明：   运用MATLAB编程得到简单信号、简单信号运算、复杂信号的谱和功率谱图，复杂信号的谱存在线谱和连续谱，并分析其组成。(Be simple to use MATLAB programming signal, a simple signal computing, complex signal and power spectrum of the spectrum, the existence of complex signal spectrum line spectrum and continuous spectrum, and to analyze its composition.)

visa travellers cheques guidelines