sinPolyfit

This Program draw spectral correlation function of mixed two signal based on QPSK and QAM

將灰階圖形的像素黑白狀態記錄在音頻頻帶的peak改變上已將圖形資訊隱藏在音頻資料中.並提供灰階圖形資料的取出方法(The grayscale pixel monochrome graphics state record changes in the audio band peak graphical information has been hidden in the audio data, and providing information grayscale graphical methods for taking out)

Derive current and voltage an electric circuit with Euler Lagrange formulism

一种改进的灰色系统理论进行非线性系统的预测，验证可用(An improved Grey prediction theory of nonlinear systems, verification can be)

可以进行离散信号与连续信号的卷积演示的界面，包括各种信号的演算，可展示结果。(Can be discrete convolution signal with a continuous signal interface presentation, including the calculation of various signals, display the results.)

this file is very useful for student to calculate structures with MATLAB

d4 wavelet coefficient daubichies 1-ECG QRS detection

说明：  状态观测器Simulink 模型，可用于弹簧阻尼系统的仿真及系统状态观测(State observer simulink)

自己编写的一个bark重构的程序，效果很好(themselves prepared a bark reconstruction procedures with good results,)

matlab linear phase FIR four type amplitude