fenlei

finite element analysis code with matlab

说明：  多尺度特征熵，用于机械振动信号特征提取和故障诊断等方面(Multi-scale feature entropy for mechanical vibration signal feature extraction and fault diagnosis)

estimation and detection code in matlab

利用稀疏分解中MP算法实现在强噪声背景下微弱正弦信号的检测，已调试，正确无误.(MP using sparse decomposition algorithm in the strong noise in the context of weak sinusoidal signal detection, has been testing, correct.)

实现边界正择性测量，可在MATLAB环境下运行(the border is optional measurement, in the MATLAB environment running)

对信号去噪，中间包括软阈值，硬阈值处理，garrot阈值，semidoft阈值处理，效果可以。(Of the signal denoising the middle soft threshold and hard threshold garrot threshold the semidoft threshold treatment effect can.)

使用principal component analysis PCA减少特征数目(Use principal component analysis (PCA) to reduce the number features.)

永磁同步电机无速度传感器直接转矩控制，运行亲测有效(Speed sensorless direct torque control of permanent magnet synchronous motor, measured effective operation)

估计随机信号的样本自相关序列。以及基本的信号处理程序代码(Estimated random sample of the signal autocorrelation sequence. And basic signal processing code)

普通的PID控制，程序正确，下载就能用，只需要改PID控制的三个参数即可(Normal PID control, the program correctly, you can use to download, just change the parameters of PID control can be of three)