02

说明：  conjugate gradient for solving system of equations

Data distill from text file

说明：  求取大型稀疏矩阵的特征根和特征向量，适用于matlab6.1以上的环境(strike a large sparse matrix eigenvalue and eigenvalues above applies to the environment matlab6.1)

时频分析的源程序文件，请让我下载你们的资料(timefrequency analysis )

说明：  ofdmIM仿真系统设计源代码，有不对的地方请指教谢谢大家(Ofdmim simulation system design source code, there are wrong places please advise, thank you)

this i sHeed Protocol for wireless sensor network

POWER FLOW ZERROUMDA

Wavelet denoising For using this code need to use signal toolbox and general toolbox in your matlab In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size 512 by 512 and then generate noisy image by adding a Gaussian noise but under the condition of having SNR=20dB by select the suitable value of variance for Gaussian noise formula. Second step is performing wavelet denoising using the hard thresholding (Use the db 6 for four levels) in the condition of finding the optimal thresholding value of T in terms of the SNR obtained. It means that, we should find the highest SNR value by finding the suitable value for threshold. Then we asked to do the same process but this time using soft thresholding. Finally for the last part of question one, we should compare the results of the obtained SNR with the recommendations of 3*sigma for the hard thresholding and 3/2*sigma for the soft thresholding.

Implementation of the canny edge detector.

myGA:用基本遗传算法求解一维无约束优化问题 (myGA: basic genetic algorithm with the one-dimensional unconstrained optimization problems)