chengxu

this is simulink module of pv cell.

直流潮流计算程序（作者FX）提供7种控制方式，导纳矩阵形成有部分问题，小弟只是想学习学习高手的源代码，代码冗杂请见谅(the code of DC—powerflow caculation by FX provide 7 kind of controll mode，but there are some problems in the formation of Y matrix.please let me download some code by good operator )

用ＭＡＴＬＡＢ语言实现电流源立体方向图的绘制(MATLAB language with the direction of the current source three-dimensional mapping)

这是利用二维小波分析对含高频噪声的图像进行消噪的例程，这里采用的是小波分解系数阈值量化法，(This is the routine use of two-dimensional wavelet analysis denoising images with high-frequency noise, the wavelet coefficients threshold quantization method used here,)

time-invariant degradation models and stationary signals and noise, the classical Fourier domain Wiener filter, which can be implemented in O(N logN) time, gives the minimum mean-square-error estimate of the original undistorted signal. For time-varying degradations and nonstationary processes, however, the optimal linear estimate requires O(N2) time for implementation. We consider filtering in fractional Fourier domains, which enables significant reduction of the error compared with ordinary Fourier domain filtering for certain types of degradation and noise (especially of chirped nature), while requiring only O(N logN) implementation time. Thus, improved performance is achieved at no additional cost. Expressions for the optimal filter functions in fractional domains are derived, and several illustrative examples are given in which significant reduction of the error (by a factor of 50) is obtained.

应用matlab的图像处理工具，使用摄像头实时解密数独的程序(The video sudoku solver)

this is mpc example ....

说明：  对数据进行eemd计算，得到数据的时间序列(matlab function of eemd)

说明：  该算法是经典的信噪比估计算法——最大似然估计算法，利用接收信道的先验概率密度函数，ML法能够很好的估计信号的信噪比(The algorithm is a classic signal to noise ratio estimation algorithm- maximum likelihood estimation algorithm, using the a priori receiver channel probability density function, ML method can be a very good signal to noise ratio is estimated)

Research paper for iris recognition this will be used for students who doing iris recognition.