PLS_3

non local mean filter commande example I =mat2gray(imread( eight.tif )) mn= 0 vr= 0.02 J = imnoise(I, gaussian ,mn,vr) add noise output=NLmeansfilter3(J,7,3,0.1)

simulink仿真程序 解决 LC震荡电路等问题(simulink LC oscillator circuit simulation program to solve problems)

用matlab 7.0 编的 主成分分析程序（GUI）(principal component analysis program （matlab7.0 GUI）)

用于提取sift特征，准确地说是提取dsift 特征，即密集采样的sift特征(it is used to extract dsift feature ,sdfasdfjlkajsdlkfjlkasjdf)

雷达系统设计 matlab仿真 代码实用(Radar system design, matlab simulation code, practical)

本程序为牛顿法潮流程序，可画出各节点电压与迭代次数关系曲线。(This procedure for the Newton load flow program can be drawn with each node voltage curve iterations.)

摘要:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情 况下,保护时隙(CP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系 统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保 护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。 (O FDM is the key techno logy of 4G in the field of mobile comm unication.In this article O FDM ba sic p rinc ip le is briefly in troduced.Then,the influence of CP and d iffe rent channe l e stim a tion on the system pe rfo rm ance is emp ha tica lly analyzed respectively in Gauss and R ayle igh fading channe ls in the cond ition of ideal synchronization.B e sides,based on the given system mode l O FDM system is compu te r sim u la ted w ith MA TLAB language and the refe rentia l design p rocedure is given.Fina lly,the B ER cu rves of CP and channe l e stim ation a re given and comp ared.The conclusion is sa tisfac to ry. )

This tutorial is intended for those who want to learn basics of MATLAB programming language. Even with a limited knowledge of this language a beginning programmer can write his/her own computer code for solving problems that are complex enough to be solved by other means. Numerous examples included in this text should help a reader to learn quickly basic programming tools of this language. Topics discussed include the m-files, inline functions, control flow, relational and logical operators, strings, cell arrays, rounding numbers to integers and MATLAB graphics.

说明：  计算一组数据的统计参数，包括最大值、最小值、平均值、方差等。(Calculate the statistical paremeters of a set of data, including the maximum， minmun, mean,variance.)

speech recognition should be done using this code