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说明：  本程序是牛顿拉夫逊法求潮流，完全按照课本步骤，比较容易理解。(This program is the trend of Newton Raphson Method, complete the steps in accordance with textbooks, it is easier to understand.)

函数mean5_3(五点三次平滑算法)对数据进行平滑处理的源代码 (Function mean5_3 (five-point smoothing algorithm three times) to smooth the data source)

基于变换编码的图像压缩及解压，含有离散余弦变换程序。(Transform based image compression and decompression coding)

高斯白噪声信道的仿真，自己写得，可以运行(Gauss　ｃｈａｎｎｅｌ)

雅克比迭代解非齐次线性方程组，逐次求出近似解逼近精确解(Jacobi iterative solution of non-homogeneous linear equations, the successive approximation of the exact solution obtained approximate solution)

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.

推荐系统 数据挖掘 数据分析 机器学习 代码(re_sys data mining analysis ml code)

全局最小二乘算法的实现，可以实现观测和混合中都有噪声的情况(TLS solution)

说明：  一种永磁同步电机simulink模型，仅供学习参考(A Simulink model of permanent magnet synchronous motor)

induction motor matlab model