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tongxi
OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术,实际上OFDM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。本程序实现OFDM与QPSK技术的比较(This program realization technology and the OFDM QPSK technology)
- 2010-10-16 17:21:55下载
- 积分:1
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gsapso
引力搜索算法和粒子群算法结合优化函数的一个例子。(An example of combining gravitational search algorithm with particle swarm optimization algorithm is given.)
- 2020-11-03 15:19:51下载
- 积分:1
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maple
用matlab生成分形图形-----枫叶(Health ingredients with matlab fractal graphics----- Maple Leaf)
- 2008-01-13 10:51:08下载
- 积分:1
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MATLABFE_I
MATLAB finite element code I
- 2013-11-03 16:46:31下载
- 积分:1
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umlspecification
《OMG Unified Modeling Language Specification》,一本对uml介绍非常详细全面的书。( OMG Unified Modeling Language Specification , 1 pairs of UML introduced a very detailed and comprehensive book.)
- 2007-12-09 10:49:11下载
- 积分:1
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guidance-and-control-simulation.tar
关于飞行器制导控制方面比较全面的仿真源代码,其中包括飞行器三自由度和六自由度仿真,单次仿真和蒙特卡洛仿真,EKF算法和UKF算法仿真等等。(On aircraft guidance control more comprehensive simulation source code, including aircraft and six degrees of freedom simulation of three degrees of freedom, a single simulation and Monte Carlo simulation, EKF and UKF algorithm simulation algorithms and so on.)
- 2013-12-14 14:32:02下载
- 积分:1
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PopupWindowShow
实现popupwindow弹出框的展示,设置弹出的位置以及样式(Achieve popupwindow display pop-up box, set the pop-up location and style)
- 2015-12-16 09:46:20下载
- 积分:1
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script_ber_2x2_alamouti_stbc_code_bpsk_rayleigh_c
2x2 Alamouti BPSK Rayleigh
- 2014-09-10 23:40:44下载
- 积分:1
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Window
加窗处理的信号分析,矩形窗与hamming窗的比较。DTFT,DFT等(The windowing processing of signal analysis)
- 2013-04-19 11:21:21下载
- 积分:1
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answer1
正弦干扰陷波LMS算法,一个主程序和三个子程序(Sinusoidal Interference Notch LMS algorithm, a main program and three subroutines)
- 2008-03-30 15:14:46下载
- 积分:1