非局部均值滤波算法优化分组

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. )

OFDM System, including pilot, GI, Guard band, rayleigh channel, AWGN, equalization, channel estimation.

MATLAB平台下的CUDA加速库。运用该库可避免在MEX函数中来回拷贝GPU数据，提高MATLAB运行速率。附件给出一个简单的矩阵乘法的示例程序，该程序在GTX TITAN下运行效率比intel i7 3930k提高了10倍。(CUDA MATLAB platform acceleration libraries. Avoid the use of the library can be copied back and forth GPU MEX function data, improve MATLAB run rate. Annex gives an example of a simple matrix multiplication program that runs under the GTX TITAN 10 times more efficient than the intel i7 3930k.)

matlab的标定工具箱，可以很方便的解决很多问题！很好用的-matlab calibration toolbox, it is convenient to solve many problems! Good used

可以实现2D和3D问题的结构动力学问题，该程序可以实现在外力激励的振动，响应，频响和传递函数的计算等。需要输入数据后进行计算，解析清楚方便快捷，只能实现线弹性材料的分析

receiver diversity ber performace

matlab、C代码，实现图论中的大部分算法，包括kruskal、Dijkstra、prim、hamilton等 (Matlab,C code for most algorithms of graph theory.)

matlab学习手册，包括基本矩阵算法，信号波形绘制等(matlab learning manuals, including basic matrix algorithm, the signal waveform drawing, etc.)

LFM radar 换点分，有没有用大家自己看。(LFM radar-for-point points, there did not use all their look.)

说明：  这是利用遗传算法进行图像分割的matlab源程序(This is the use of genetic algorithms image segmentation matlab source)