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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. )

bpsk在高斯白噪声下的simulink仿真(bpsk_awgn)

programme Gauss seidel

说明：  lbg算法的实现，应用平台MATLAB.DAJIA DJFAIUDF(lbg algorithm, application platform MATLAB.DAJIA DJFAIUDF)

Gram chmitt using matlab, it is free example

自适应粒子群算法的应用程序，用matlab编写，适合初学者使用(adaptive PSO algorithm)

最近邻法 分类器 matlab编写(Nearest neighbor method of matlab source code classifier )

《模式识别与智能计算》源代码，包含书本全部示例的原代码(Source code for "pattern recognition and intelligent computing")

Binary erosion and dilation, with fast iterative calls. For any structuring element other than square or disk this function is way faster than imerode.m and imdilate.m (more than an order of magnitude). It s also handy when you don t have the Matlab Image Processing Toolbox :-)... It also allows very fast iterative calls (for instance when sweeping the structuring element while looking for a certain effect, threshold in image statistics, etc). See the help in bmorph.m and the attached .pdf file.

在MATLAB上运行，程序主要功能为改变输入图像的灰度和提取。(In MATLAB run, the program main function is to change the input image intensity and extraction.)