fft

惠更斯-菲涅尔衍射计算，非常不错，简单易行。(Huygens- Fresnel diffraction calculations, very good, easy.)

对井下放炮，地面接收地震资料进行偏移。长测线同样适用。(Underground blasting, ground receiving seismic data offset. Long lines are equally applicable.)

说明：  PSCAD仿真模型，可以用来研究SSO问题。(The PSCAD simulation model can be used to study SSO problems.)

说明：  实现基2FFT的算法，包括数据分析报告，Matlab实现界面友好。(To achieve the base 2FFT algorithms, including data analysis, Matlab to achieve user-friendly.)

说明：  MDPSK在AWGN，瑞利等信道下的性能仿真比较(MDPSK in AWGN, Rayleigh and other channels compared the performance of simulation)

Spectrum Analysis teaching aid

NWFE:Nonparametric Weighted Feature Extraction for Classification，线性分类方法，类似于改进了了的LDA，使用中，结果有时候比SVM等好(classification, NWFE:Nonparametric Weighted Feature Extraction for Classification)

大地测量中的坐标求解转换，用于坐标反算，matlab代码(The geodetic coordinates solving conversion for coordinates Backcalculation, matlab code)

迭代自组织数据分析，有较好的参考价值，采用了小波去噪的思想。( Iterative self-organizing data analysis, There are good reference value, Using wavelet denoising thought.)

基于PCA和白化的数据预处理操作，PCA具有两个功能：维数约减和数据可视化；白化的目的是去掉数据之间的相关性。深度学习的一个主要工作就是数据的预处理(Based on PCA and data pre-whitening operation, PCA has two functions: dimensionality reduction and data visualization whitening purpose is to remove the correlation between the data. One of the main work is to study the depth of pre-processed data)