Planoconvex

mechanism work in a PWM DC motor

matlb编写的IIR滤波器程序，按照给定指标采用模拟低通滤波器（巴特沃思低通或者切比雪夫低通）去逼近理想模拟低通滤波器 ，然后通过双线性变换法对模拟滤波器进行数字化，得到数字滤波器 。(IIR filter matlb prepared by the procedure, according to set targets and analog low-pass filter (Butterworth low-pass or low-pass Chebyshev) approximation to the ideal analog low-pass filter, and then through the bilinear transformation method for analog filtering device to digitize, the digital filter.)

这是对线性调频信号的MATLAB仿真代码及代码跑出后的图，绝对真实无差错(Emulation of LFM signal)

code source on matlab for som

说明：  一个关于FM收音机的程序，里面包括FM调制解调，以及PLL模块，并在SIMULIN内实现仿真。(A program on FM radio, which includes FM modulation and demodulation, and PLL module, and simulation within the SIMULIN.)

this code reduce the dimentional of feature space using combine sparse matrix+PCA for classification eeg signal. more detail exixst inside the code. this code tested and work properly

paper on A Novel Control Strategy for a Variable-Speed Wind Turbine With a Permanent-Magnet Synchronous Generator

PLL with RC oscillator based in a DCO

Matlab的窗函数_矩形窗_三角窗_汉明窗_汉宁窗_布莱克曼窗(The window of the Matlab function, rectangle, triangle window, hamming window and hanning window, blackman window)

对hurst指数估计，本人已经做过测试，是正确的，下载可以直接使用(the estimation of hurst for time series！)