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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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Matlab-Ga
基于Matlab遗传算法的最优投资组合选择(Matlab genetic algorithm-based optimal portfolio selection)
- 2013-05-10 20:20:55下载
- 积分:1
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3D
说明: its #D graphic program in c....very easy to understand
- 2010-08-01 21:17:30下载
- 积分:1
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MATLABandCCS
说明: 这是这段时间 在网上荡的 MATLAB 与CCS联调的资料。里面包含的联调的命令,以及一个完整的FIR 程序,利用MATLAB与CCS的联合实现!希望对大家有用。。。(This is a time-line swing of MATLAB and CCS FBI data. Which included the FBI' s command, as well as a complete FIR program using MATLAB and CCS, the joint realization of! Want to be useful to everyone. . .)
- 2010-03-25 15:58:28下载
- 积分:1
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psk---xinshetu
实现M=4,8 PSK星设图
M=4的PSK系统,分别取信噪比为odB、10dB和20dB,在星座图上观察接收端接收到的信号向量。(achieve M = 4,8 PSK-based map of M = 4 PSK system, the signal-to-noise were taken odB. 10dB and 20dB, in the constellation observation receiving termination received signal vector.)
- 2007-06-01 13:06:44下载
- 积分:1
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Chirp-and-Gaussian-NLSE
啁啾和高斯为初值的光孤子传播的非线性薛定谔方程快速傅里叶算法求解,3D图(Chirp and Gaussian for initial value soliton propagation of nonlinear Schrodinger equation fast Fourier algorithm for 3D Figure)
- 2013-05-08 23:00:16下载
- 积分:1
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GABOR
生成Gabor滤波器的函数,并用gabor滤波器进行滤波,简单易懂(Generating function Gabor filters and filtered using gabor filters, easy to understand)
- 2014-01-16 17:49:19下载
- 积分:1
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Iris-center-and-radius
to find the iris radius and center using image thresholding and center approximation..
- 2011-02-08 14:11:34下载
- 积分:1
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yanshichengxu2
simulink仿真书籍源码,经典代码,演示程序(the simulink simulation books Source, classic code demo program)
- 2012-11-25 20:51:31下载
- 积分:1
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equation
Taking a Jacobian Matrix of the system defined by equations (3) to (6) and evaluating the matrix at the equilibrium, at which all state variables
- 2012-12-30 17:03:32下载
- 积分:1