lab3_sampling_zia

说明：  这是一个用matlab编制的DE算法的源程序，希望大家喜欢！(This is a preparation using the Matlab DE algorithm source, hope you like them!)

ROOT MEAN SQUARE, PSNR, PFE MATLAB FILES

example simulation s of analysis of electrical machinery and drive systems - Pual C. Krause - Ex6

自己编的一个用随机行走法实现电路计算的例子，电路图及参数均在Partial random walk for large linear network analysis里(Own a random walk method used to achieve circuit examples, circuit diagrams and parameters in the Partial random walk for large linear network analysis in)

原对偶内点法求解非线性最优化问题的测试程序，能准确快速的收敛到最优值(Primal dual interior point method for solving nonlinear optimization problem of the test procedure can accurately and quickly converge to the optimal value)

利用小波变换多尺度分析的特性,在小波域的各个尺度上选取不同的阈值对基本的频域谱减法进行改进,并且根据清浊音各自不同的特点,在去噪过程中加以分离,保留了语音中的清音成分,使语音更加饱满。(The use of multi-scale wavelet analysis of the characteristics of the individual in the wavelet domain scale threshold select a different frequency domain of the basic spectral subtraction to improve and, in accordance with their respective Qingzhuo sound different characteristics, in the denoising process be separated from the retained voice of the voiceless in the composition, more full of voice.)

Bode plot using MATLAB.. it was in our 6th sem laboratory for the purpose of examination part we studied

it is a speech synthesis program which speaks whatever is written in the command window

AP聚类方法，是08年发表在“科学”上的聚类方法，本人从图像图像方面研究近十年，这是我所见过最好的聚类算法，本程序提供聚类演示，还把它用图像分割试验（matlab7.0环境调试）。(AP clustering method, is 08 published in " Science" on the clustering method, the image from the image in my research in recent years, this is the best I have ever seen clustering algorithm, Clustering presentation of this program provides, but also test it with the image segmentation (matlab7.0 debugging environment).)

如何计算矩阵数据的协方差矩阵。还有在什么情况下只能计算均值、方差，而不能计算协方差，什么情下，只能计算协方差，但不能计算协方差矩阵。(How to calculate the matrix data covariance matrix. And under what circumstances can only calculation mean, variance, and not calculation covariance, what feeling, can only calculation covariance, but not calculation covariance matrix.)