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OF123456
OF,实际上OF是MCM Multi-CarrierModulation,多载波调制的一种。其主要思想是:将信道分成若干正交子信道,将高速数据信号转换成并行的低速子数据流,调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开,这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽,因此每个子信道上的可以看成平坦性衰落,从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分,信道均衡变得相对容易。在向B3G/4G演进的过程中,OFDM是关键的技术之一,可以结合分集,时空编码,干扰和信道间干扰抑制以及智能天线技术,最大限度的提高了系统性能。(OF)
- 2010-05-21 14:59:58下载
- 积分:1
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crossrange
基于matlab合成孔径雷达在方位相上的距离仿真(Distance simulation of synthetic aperture radar (SAR) in the orientation phase)
- 2012-06-19 16:23:21下载
- 积分:1
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contact-lenses
some dataset for weka some dataset for weka
- 2014-09-12 03:05:59下载
- 积分:1
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AR_ARMA
信号谱分析之AR算法,计算信号频谱,用于随机信号分析(The AR_algorithm of analysis of signal,calculating the frequency spectrum ,is used for random signals!)
- 2012-01-12 13:52:37下载
- 积分:1
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NCUT
此程序是谱聚类中,经典的Ncut算法。用matlab编写的。(This program is spectrum clustering, classic Ncut algorithm.The program
uses matlab。)
- 2012-03-05 21:28:01下载
- 积分:1
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fenzhi
#include <iostream.h>
int main()
{
int i(0),sum(0)
while (i<=100)
{
sum=sum+i
++i
}cout<<"sum="<<sum<<endl
return 0;
}
- 2009-12-11 22:03:44下载
- 积分:1
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adaptive-filters
adaptive fitering of the signal and computing the spectrum of signals
- 2011-02-05 15:09:44下载
- 积分:1
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flyback
基于saber仿真软件,是对反激变换器仿真设计的。(Flyback converter design saber-based simulation software)
- 2014-11-28 21:17:42下载
- 积分:1
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LAB_4
Matlab Code for DFT and its property
- 2012-01-27 23:21:47下载
- 积分:1
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movie_cartoon
%电影动画:
%1.首先调用moviein函数对内存初始化.创建一个足够大的矩阵来容纳一系列指定的图形(帧)
%2.调用getframe函数生成每一帧.该函数返回一个矢量,利用这个矢量创建一个电影动画矩阵
%3.调用movie函数按照指定速度进行指定次数的播放
%例子2:演示如何实现快速傅立叶变换(exp(j*2*pi/n))的可视化过程( Movie animation: 1. First transfers the moviein function to the
memory initialization Founds graph which an enough big matrix holds a
series of assigns (frame) % 2. Transfers the getframe function to
produce each This function returns to a vector, uses this vector to
found a movie animation matrix % 3. Transfers the movie function
according to assign the speed to carry on assigns the number of times
the broadcast
Example 2: How demonstrates realizes fast Fourier transforms
(exp (j*2*pi/n)) the visible process )
- 2006-08-11 18:51:03下载
- 积分:1