GRAY

This is a useful code for mutipaths signal

手写傅里叶反变换，通过矩阵变换实现的傅里叶逆变换，修改读入图像名就可以实现对应图像的傅里叶反变换，并与MATLAB内置函数进行比较(Inverse Fast Fourier Transform)

Matlab神经网络工具箱的应用简介，从原理到应用(Neural network toolbox)

各种算法集合，包括：优化，回归，图论，数据处理，吉布斯分布等等(A collection of algorithms including optimization, regression, graph, data processing, Gibbs and etc.)

生成矩阵,类似于excel，方便数据的输入和输出，自动生成(this program can make out a y,it can help you to make a arry,you can load it,it is useful, thank you)

The code demonstrate morphing that is basically source image warping followed by cross dissolving.

Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and interpolating the channel. Channel estimation at pilot frequencies is based on LS and LMS methods while channel interpolation is done using linear interpolation, second order interpolation, low-pass interpolation, spline cubic interpolation, and time domain interpolation. Time-domain interpolation is obtained by passing to the time domain by means of IDFT (inverse discrete Fourier transform), zero padding and going back to the frequency domain by DFT (discrete Fourier transform). In addition, channel estimation based on a block type pilot arrangement is performed by sending pilots in every sub-channel and using this estimation for a

改良后的下垂控制，效果还行，仅供参考.用于并网逆变器控制。(Droop control improved, and the results were OK, for reference purposes only. Used in grid inverter control.)

解方程，可为相关学习者或者matlab独立编程人员提供参考(Solution of equation for the relevant independent learners or matlab programmers reference)

高斯平滑滤波，属于低通滤波，有效去除图像噪声。(Gaussian smoothing filter, a low pass filter effectively removes image noise.)