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OFDM信号及其频谱
OFDM signal and its spectrum ( Guard Interval insertion )-OFDM signal and spectrum OFDM signal and its spectrum (Guard Interval insertion)
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This about OFDM signal and its spectrum ( Guard Interval insertion )-OFDM signal and its spectrum ( Guard Interval insertion)
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该程序是对OFDM信号的频谱感知的循环特征检测方法，代码齐全，介绍详细-The program is the OFDM signal spectrum sensing cycle of feature detection, code complete, detailed descr iption
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这个程序用于生成OFDM信号和它的频谱，对于初学者迅速掌握OFDM的生成机制特别有帮助。Matlab版本: R13-This process used to generate the OFDM signal and its spectrum, for beginners to master the rapid formation mechanism OFDM particularly helpful. Matlab version: R13
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OFDM signal spectrum
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This is the simulation of a N-continuous OFDM signal with the raised coseine filter. The out-of-band spectrum of this OFDM signal is shown.
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关闭OFDM信号子载波，画出OFDM信号频谱图，查看旁瓣泄露情况-Close OFDM signal sub-carrier OFDM signal spectrum plot, view the situation sidelobe leakage
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由MATLAB程序产生2Gbi/s的基带OFDM信号先将2^15-1个伪随机序列映射到256个进行4QAM编码调制的子载波上，编码后的OFDM符号再经过IFFT变换将其转换为时域波形，接着添加6.4ns的循环前缀（CP），产生的数据波形再装载到Tektronix任意波形发生器（AWG）中，产生2Gbit/s的基带OFDM信号。基带OFDM信号频谱示意图如图3所示。其中包括256个OFDM子载波256个子载波中200个子信道用来传送数据信号，27个高频和28个低频子信道为了过采样的需要置0，OFD
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In OFDM transmission, all the available subcarriers from the DFT is not used for data transmission. Typically some subcarriers at the edge are left unused to ensure spectrum roll off. For the example scenario, out of the available bandwidth from -10M
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针对在无线电监测和认知无线电系统中,信号参数估计这一重要问题,证明了OFDM信号具有循环平稳性的必要条件是加循环前缀或有非矩形脉冲成型,并以线性周期时变变换(LPTV)模型为基础,推导了OFDM信号的循环谱表达式-For radio monitoring and cognitive radio systems, signal parameter estimation of this important issue, the necessary condition for the OFDM sig
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针对认知无线电系统中正交频分复用( OFDM )信号参数估计这一重要问题, 利用OFDM 信号的循环谱实现了符号周期的盲估计。-For cognitive radio systems, orthogonal frequency division multiplexing (OFDM) signal parameter estimation of this important issue, the cyclic spectrum of the OFDM signal to achieve the
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本程序通过分析OFDM信号的循环平稳特性，利用循环谱对OFDM信道进行估计。-This procedure by analyzing the OFDM signal is cyclostationary properties, the use of cyclic spectrum of the OFDM channel estimation.
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OFDM信号频谱的仿真，以及对系统性能的相关分析-Simulation of the OFDM signal spectrum, as well as on system performance analysis
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可直接运行产生高质量的OFDM信号频谱图形。无需调用其它子程序实现。-Can be run directly produce high-quality OFDM signal spectrum graphics. You do not need to call other subroutines.
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此程序模拟了一个基本的OFDM通信系统，采用16QAM调制，并绘出了星座图及输入输出信号频谱-This program simulates a basic OFDM communication system using 16QAM modulation, and draw a constellation diagram and the input and output signal spectrum
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能实现对OFDM信号频谱的仿真，能创建信道，以及相关性能的分析。-Can realize the simulation of the OFDM signal spectrum, can create a channel, and the related performance analysis.
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本文有关于OFDM循环谱的推导
可贵的是还有带循环前缀的循环谱推导
仿真了OFDM循环谱，介绍了相关理论估计盲信号参数以及改进算法-The OFDM cyclic spectrum and bilnd signal estimating
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Spectrum Sensing of OFDM signal for Cognitive Radio. Double threshold platform has been used. Autocorrelation of OFDM signal has been used as feature for detection purpose in AWGN channel scenario.
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Faculty of Engineering, University of Fukui. 2003/11/11
coded by Sokthai Chan (sokthai@msn.com)
OFDM signal and its spectrum ( Guard Interval insertion -Faculty of Engineering, University of Fukui. 2003/11/11
coded by Sokthai Chan (sokthai@
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设计一个OFDM系统，并求OFDM信号的功率谱和频谱，以及OFDM系统的误码率性能。(A OFDM system is designed, and the power spectrum and spectrum of OFDM signal are obtained, and the bit error rate performance of OFDM system is also discussed.)
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