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对轴承故障振动信号的matlab小波分析程序，能完成对故障特征频率的提取(Of bearing fault vibration signals matlab wavelet analysis procedures, can finish on the fault characteristic frequency extraction)

采用差分阈值法对心电信号QRS波进行特征提取的Matlab程序。(Differential threshold method QRS wave of ECG feature extraction of Matlab program.)

This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model. A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation. alpha_n = frac{pi(n-0.5)}{2M} and eta_n = frac{pi n}{M}, results in the following model, usually termed the Dent model or the modified Jakes model: R(t,k) = sqrt{frac{2}{M}} sum_{n=1}^{M} A_k(n)left( cos{eta_n} + jsin{eta_n} ight)cos{left(2pi f_d t cos{alpha_n} + heta_{n} ight)}. The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases ,! heta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model.

this is a matlab model of single machine infinite bus with out any controller. we can add any type of controller for verification of stability of the system

1-D Shaw Problems: Finds the Tikhonov regularized solutions (L = I) for a variety of choices for alpha and generates a waterfall plot of the results

这是一个对于频率选择性瑞丽信道的仿真，希望对大家有所帮助(This is a Ruili for frequency-selective channel simulation, we hope to help)

my reserach .i want related code

Wind System with Induction Generator

说明：  声子晶体平面波展开的程序，其中参数可以自己设定，直接可用！(Phononic crystal plane wave expansion of the program, where the parameters can be set directly available!)

gray scale image denosiy matlab code