stft

关于转子轴承系统，需要计算转子的速度，这是一个编程，可以参考学习。(A rotor bearing system, requires the calculation of rotor speed, which is a programming, you can refer to learning.)

Digital Modulation scheme imlemented

说明：  异步电动机有速度传感器矢量控制，逆变侧使用SVPWM，启动超调量约3.2%(The asynchronous motor has speed sensor vector control, the inverter side uses SVPWM, and the starting overshoot is about 3.2%)

求一个复正弦加白噪声随机过程的信号： xn=exp(j*pi*n-j*pi)+exp(j*w0*n-j*0.7*pi)+v v(n)为零均值白噪声。S/N=10dB。取P=3，构造4阶的自相关矩阵R的基于MUSIC算法的功率谱估计的MATLAB程序(For a complex sinusoid plus white noise of the signal random process: xn = exp (j* pi* nj* pi)+ exp (j* w0* nj* 0.7* pi)+ v v (n) zero mean white noise. S/N = 10dB. Take P = 3, constructed of 4-order auto-correlation matrix R of the MUSIC algorithm based on power spectrum estimation procedure of MATLAB)

Burgers方程作为流体计算中的经典模型方程之一，他的理论解作为验证求解格式的重要依据！(Burgers equation as a calculation of the classical fluid model equations, one of him as a validation of the theoretical solution to solve an important basis for the format!)

Griewang and Michalewicz test bed for Genetic Algorithm Optimization Problems. This is a standard Test bed used by several authors to test the efficiency of their proposed algorithms.

this is script for running Extended Elastic Impedance(EEI),from well log data

函数：圆柱斜齿轮的齿轮副时变啮合刚度曲线(Function: Deputy helical gears gear time varying mesh stiffness curve)

说明：  代码来自书籍：振动力学基础与MATLAB应用 振动力学案例：单自由度强迫振动(Vibration mechanics case: single degree of freedom forced vibration)

CHAPTER 1- real-Time Digital Signal Processing: Implementations and Applications, Second Edition by Sen M. Kuo, Bob H. Lee & Wenshun Tian, ISBN 0470014954