Appendix1E_data_generation

This file is for PCA COV

一个仿真的论文，关于svpwm的异步电动机调速(A simulation of the papers, on the SVPWM induction motor speed control)

1．用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图(1. Produce sine wave, square wave, and the white noise signal with Matlab, and their time-domain waveform display 2. FFT transform, display each spectrum, where the sampling rate, frequency, length optional data 3. RMS to make maps of the three signals, power spectrum, as well as the number of RMS map 4. Restored by inverse Fourier transform IFFT signal and displays the time domain waveforms sinusoidal signal recovery)

This is the thwaites method for boundary layer over flat plate . This is an empirical method based on the observation that most laminar boundary layers obey the following relationship .it will help our calculate coefficient drag , velocity over flat plate.

说明：  本人实际工作中自己编写的激光谐振器分析程序，在MATLAB中输入main即可运行程序(I actually work in their preparation of the laser resonator analysis program, type in the MATLAB main program can be run)

说明：  利用多相滤波器完成对音频信号的处理，包括完整的注释。(Polyphase filter complete audio signal processing, including full comments.)

说明：  参考维基百科（https://en.wikipedia.org/wiki/Variance-based_sensitivity_analysis）的取样过程以及对应的Estimators。理论性的东西就不进行复述了，这里主要阐述用MATLAB（R2018b）对某个特定函数进行Solo indices敏感性分析的过程。大致可分为四个过程：采样，构建函数，函数输出（将样本带入函数得到输出值），计算Sobol指数（估算一阶影响指数和全局影响指数）(Sobol global sensitivity analysis)

the plot of EEG power spectral values

用于计算duffing 方程的最大lyapunov指数(The largest lyapunov exponent used to calculate the Duffing equation)

这是用来仿真无线定位技术的算法源程序，希望可以帮到大家(This algorithm is used to simulate wireless location technology source, I hope you can help)