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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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geodome
geometric shape modeling1
- 2011-11-28 15:56:38下载
- 积分:1
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ReedSolomon
非常实用的RS编译码程序。原理可以参考Sklar写的《数字通信》。(See "Digital Communications" by Sklar as the reference for this. These MATLAB scripts answer questions 8.3- 8.7, but using similar methods you might by hand. Includes generating Galois Field addition and multiplication tables, evaluation message and error vectors, and decoding)
- 2012-02-03 17:57:01下载
- 积分:1
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DSPusingmatlab
这是数字信号处理的几个典型例程,都是有关于最基本概念方面的,对初学者有帮助(Digital Signal Processing This is a typical course of a few are on the most basic concepts, and helpful for beginners)
- 2009-07-11 13:22:38下载
- 积分:1
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d
说明: 太阳光聚焦光线偏移的一个小程序,方便大家学习与应用。(Focus sunlight light offset a small program to facilitate learning and application.)
- 2013-01-07 12:29:01下载
- 积分:1
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Fast_Global_Minimization_Active_Contour
Author: Xavier Bresson (% Last version: Aug 3, 2008
% For more information: X. Bresson and T.F. Chan, "Fast Minimization of the Vectorial Total Variation Norm and Applications to Color Image
Processing", CAM Report 07-25(Author: Xavier Bresson ( Last version: Aug 3, 2008 For more information: X. Bresson and TF Chan, Fast Minimization of the Vectorial Total Variation Norm and Applications to Color ImageProcessing , CAM Report 07-25)
- 2007-11-14 22:49:05下载
- 积分:1
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emd
经验模式分解程序(matlab)可以对输入信号进行经验模式分解(Empirical mode decomposition process (matlab))
- 2009-04-13 17:53:56下载
- 积分:1
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quyushengzhang
针对脑的磁共振分割图像进行区域生长与合并。(Regional growth and consolidation for the segmentation of magnetic resonance images of the brain.)
- 2012-12-30 10:11:27下载
- 积分:1
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voltage_sag_with_sc
power system compensation using facts device
- 2013-03-17 03:57:54下载
- 积分:1
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68872607AGA自适应遗传算法 求解函数最小值
68872607AGA自适应遗传算法 求解函数最小值.rar(Adaptive genetic algorithm for minimum function of function)
- 2018-05-17 15:37:10下载
- 积分:1