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decryption and decryption of a text ( options : upper decoding .. )

说明：  主元分析方法（PCA）是一种基于多元统计分析的数据降维方法, 它利用过程变量间的相关关系, 建立正常工况下的主元模型, 通过检验新的数据样本相对于主元模型的背离程度, 从而发现异常和故障。 (Principal Component Analysis (PCA) is based on multivariate statistical analysis of the data reduction method, which uses the correlation between process variables and establish the normal condition of the main element model, by testing samples of the new data relative to the principal component model departure from, and thus abnormal and failure.)

采用卡尔曼滤波器滤除语音信号中的有色噪声，采用Matlab实现，并给出了实例(Kalman filter to filter the speech signal colored noise, using Matlab to achieve, and gives an example)

文件内含有在MATLAB基础上实现的PSO代码，测试过，能顺利运行，并且可以继续添加测试函数进行编译。(File contains MATLAB basis in the realization of PSO code, test, can run smoothly, and can continue to add the test function to be compiled.)

A Point on an Elliptic Curve in barycentric (or affine) coordinates.

说明：  TDOA定位的泰勒级数展开最小二乘定位算法Matlab源码. GreenSim团队原创作品，(Taylor series expansion TDOA positioning Matlab least squares source location algorithm. GreenSim team of original works,)

实现分段拟合处理数据，达到实现文中的可调式程序的目的，实现了数据处理的可能性(Fitting the data to achieve piecewise)

本程序是用于信号频谱分析的实验程序。 主要功能是进行信号的幅值谱计算；同时可完成在选定范围内谱峰的精确频率、幅值和相位计算（计算结果为cos相位）。( This procedure is used to test the program signal spectrum analysis. Main function is to calculate the signal amplitude spectrum the same spectral peaks can be completed within the selected range of precise frequency, amplitude and phase calculation (calculated as cos phase).)

DFIG state space analysis

用matlab实现的BP神经网络，比较基础，对已有的语音信号进行分类，留了500个作为检验(Using matlab to achieve the BP neural network basis of comparison, the existing classification of the speech signal, leaving a 500 as a test)