pid

Matlab CDMA and is for the master or the graduate level students

计算并绘制图像的直方图，本设计中绘制了四种形式的直方图，imhist,bar,stem,plot进行比较和区别！(Calculated and plotted the histogram of the image, the design of four forms of the histograms drawn, imhist, bar, stem, plot and compare the difference!)

学习MATLAB的基本应用与MATLAB仿真的基本知识，适合初学者(Learning of MATLAB applications and basic knowledge of MATLAB simulation, suitable for beginners)

独立成分分析中，将各个音频混合之后再将每个成分分离出来，并与PCA的结果做比较。(complete ICA，and compare with PCA。)

17 level converter in simulink

模拟在住不同条件下长周期光纤光栅的传输谱，给出了各个不同条件下传输谱的变化(Simulation under different conditions in living long period fiber grating transmission spectrum, gives the transmission spectrum under different conditions, changes in)

when SNR is high , 1st sample estimator provides good estimate of A. it has no noise effect . so we don’t need averaging effect to reduce noise when SNR is high. However variance is still low in sample mean estimator which shows that in reality ,sample mean is good estimator than 1st sample estimator. So, for high SNR, we do not need to reduce the effect of noise by averaging. or we can say that for high SNR let say >1000 , 1st sample estimator got reduced noise. But as for as variance is concerned , the sample mean has low variance for high SNR as well.

基于cpso文章，给出的一个matlab代码，添加测试函数即可运行。(Based on cpso, given a matlab code, add test function can be run.)

An efficient algorithm for identification of PIL on Solar Dynamic Observatory (SDO) Helioseismic and Magnetic Imager (HMI) magnetograms. Detailed description will appear in the paper: Volobuev, D.M. Polarity-Inversion Line Preceding X-class Flare, Solar Physics, Initial data (65 megabyte .fits magnetograms) can be downloaded from http://hmi.stanford.edu/ - Model_test_PIL_Open.m script - calculates parameters of the example(simulated S-curve) - SDO_PIL_Open.m script - identifies PIL on SDO magnetogram and calculates its parameters - 5 functions are used within these scripts

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.)