daishuyunsuan

fftshift 比较实数和复数傅里叶变换频谱的不同，以及N取值对其频谱特点的影响。(fftshift more real and complex Fourier transform spectrum of different, and the N values of the characteristics of its spectrum.)

matlab/simulink 整流器二电平仿真源代码，修改参数后即可使用 个人原创，亲自调试可用(Two-level converter simulation source code)

说明：  根据连续时间函数的采样数据，利用spline重构该连续函数，并检查重构误差。(spline interpolation )

由一系列空间点拟合三维曲线，输入坐标点，输出多段样条曲线，及n等分点(By a series of space to fit this point, the input, output multiple of the other points, and the n )

Cubic spline interpolation and low pass filter

很好的程序，可以直接用。不会出现错误good program good program(a good process, the direct use of it, no errors，good program good program good program)

说明：  Matlab开发环境中编辑程序文本时的高亮工具代码。(Matlab development environment in the editing process of the highlighted text tool code.)

matlab code for convolution

翼型气动计算软件XFOIL的Matlab界面(Airfoil interface with Matlab computing software XFOIL)

This program does watermarking in dct coefficints.Robust againt jpeg compression and noise.Evaluated with psnr