ImpulseNoise

完美的OFDM系统的MATLAB仿真程序，希望对研究OFDM的同志有所帮助(Perfect simulation program MATLAB OFDM system, in the hope of OFDM help comrades)

一种MIMO体制天波雷达多普勒扩展杂波抑制方法(Doppler radar system for MIMO-day extension clutter suppression method)

he modeling equation of this system is MD2X+bDX+kX = F The transfer function between the displacement X(s) and the input F(s) then becomes X(s) / F(s) = 1 / (Ms2 + bs +k)

edp文件里用到的封装函数，enfram函数。要想使用edp，需要下载此函数。(edp file used the package function, enfram, function. To use the edp will need to download this function.)

将OFDM的过程讲解得很清楚，很适合开始学习OFDM及ＭＩＭＯＯＦＤＭ　的同志们参阅(OFDM process will explain very clearly, it is appropriate to begin to learn OFDM and comrades MIMOOFDM see)

说明：  自适应算法网格设定，紧接着上一篇上载内容(getmesh，putmesh)

该程序描述了SVM神经网络的数据分类脑电信号种类识别。(The program describes the SVM neural network data classification EEG species identification.)

运用sift特征点提取算法提取特征点，用matlab实现图像拼接。(Feature extraction algorithm using sift feature point extraction, using matlab image mosaic.)

在Matlab实现了模拟人群搜索（SOA）的智能搜索算法。(The Seeker Optimization Algorithm in Matlab.)

OFDM很容易在具有时延扩展或等效频率选择性的信道上使用。 频率选择性信道的特征在于延迟扩展或相干带宽，其测量频率中的信道去相关。 相干带宽与均方根（RMS）时延扩展成反比。 通过选择与信道相干带宽相关的子载波间隔，OFDM可以用于将频率选择性信道转换成频率平坦子信道的并行集合。 适合于平坦衰落信道的技术可以直接应用。(OFDM is simple to use on channels that exhibit time delay spread or, equivalently, frequency selectivity. Frequency selective channels are characterized by either delay spread or coherence bandwidth which measures the channel decorrelation in frequency. The coherence bandwidth is inversely proportional to the root-mean-square (rms) delay spread. By choosing the sub-carrier spacing properly in relation to the channel coherence bandwidth, OFDM can be used to convert a frequency selective channel into a parallel collection of frequency flat subchannels. Techniques that are appropriate for flat fading channels can then be applied in a straight forward fashion.)