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基于Matlab开发环境的FIR数字低通滤波器设计的源代码。(Based on the development environment of Matlab FIR digital low-pass filter design source code.)

适用于matlab 的图形旋转代码，可自定义旋转角度，使用邻近插值不全图像(Applicable to matlab graphical rotation code, the rotation angle can be customized using the neighbor interpolation incomplete picture)

Code for PPG signal to estimate the HR of subjects doing intense exercises

说明：  esn代码，稍加修改，不一定正确，上传分享(The modified ESN code is not necessarily correct. Upload and share the code.)

进行分段三次Hermite插值和分段三次Spline插值，比较F-C取导数方法所得到期收益率曲线逼近中债结算公司的到期收益率曲线的效果的程序(Hermite interpolation for sub-three and three sub-Spline interpolation, comparing FC take derivative curve approximation method, due in settlement of debts due the company s procedures for the effect of yield curve)

加速度传感器测得的过载信号，通过matlab处理，得到光滑曲线。 其中有滤波，频谱等计算。(The overload signal measured by the acceleration sensor is processed by MATLAB, and the smooth curve is obtained. There are filters, spectrum and other calculations.)

简单的语音合成程序，本人调试后，可以运行，仅供参考！(Simple speech synthesis procedure, I debug, you can run for reference purposes only!)

实现快速傅里叶变换函数的matlab程序，以2D作为基来写的(Fast Fourier transform function matlab program to 2D as a base to write)

realize overlapped-add method ％[y]=overlpadd(x,h,Nfft) ％y:output sequence ％x:input sequence ％h:filter impulse response sequence ％Nfft:points of each DFT operation ％重叠相加法实现分段卷积(realize overlapped-add method% [y] = over lpadd (x, h, Nfft)% y : x% output sequence : % h input sequence : impulse response filter% Nfft sequence : DFT points of each operation% of the sum of overlapping sub-convolution Method)

single phase induction motor with permanent capacitor in dq axis