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OFDM:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情
况下,保护时隙(cP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序-OFDM : Orthogonal Frequency Division Multiplexing (OFDM) is the fourth-generation mobile
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这个程序除了接收机同步、信道编码没有加入外,基本上反映了一个OFDM系统的特性:
1. qpsk/16qam/64qam映射、解映射
2. OFDM调制解调(循环前缀,FFT等)
3. 非整数采样时刻多径时延的多径信道
4. Rayleigh或者Rician多径信道
5. 信道的连续时变(非block fading)
6. 线性插值信道估计
7. FFT变换域插值信道估计-In addition to this program receiver synchroniza
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OFDM时域定时测试,分别在高斯白噪声信道和瑞利信道中-OFDM time-domain time test, respectively white Gaussian noise channel and Rayleigh channel
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利用matlab对瑞利衰落信道仿真,用16QAM调制OFDM-Use of matlab simulation of the Rayleigh fading channel, OFDM with 16QAM modulation
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OFDM/Simulink matlab procedure, at different signal to noise ratio, the system compares the SER and BER. The use of Rayleigh fading channel.
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这是urban_macro信道加卷积编码的ofdm程序。
包含文件有:qpsk.m qpsk调制程序
deqpsk.m qpsk解调
ofdm_siglepath.m 单径瑞利衰落程序
sigle_path_conv.m 单径瑞利衰落信道加卷积编码程序
ofdm_urban_macro.m urban_macro信道的ofdm程序
ofdm_my.m urban_macro信道加卷积编码的ofdm程序
viterbi.m viterbi译码程序
cnv_encd.
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This matlab code calculates a bit error rate of OFDM system over a flequency-selective Rayleigh fading channel.
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正交频分复用(OFDM) 是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情
况下,保护时隙(CP) 和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系
统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保
护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。-Orthogonal frequency division mult
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Matlab的OFDM在多径Rayleigh信道下的同步1. 假设频率已同步,设计OFDM一种具体的采用循环前缀进行时间同步方法,用Simulink进行仿真,画出比特特信噪比与捕获概率的关系曲线。2. 设时间已同步,设计OFDM一种具体的采用循环前缀进行频率同步方法,用Simulink进行仿真,画出比特信噪比与频率同步误差的关系曲线.
-Matlab for OFDM under the multipath Rayleigh channel synchronization. Assuming
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ofdm的matlab仿真以及信道估计,瑞利多普勒信道-the matlab simulation of ofdm channel estimation, Rayleigh Doppler channel
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基于matlab的瑞利信道条件下OFDM的系统仿真-Rayleigh channel matlab-based OFDM system simulation under conditions
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OFDM的matlab仿真,调制解调,交织,信道编解码,高斯信道和瑞利衰落信道下的分别进行仿真的程序。-OFDM matlab simulation, modulation and demodulation, interleaving, channel coding and decoding, Gaussian channel and Rayleigh fading channel simulation procedures, respectively.
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OFDM在瑞利信道下的误码率,使用matlab将OFDM在瑞利信道下进行仿真性能的效果-OFDM BER in Rayleigh channel using matlab OFDM in the Rayleigh channel simulation performance results
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CP-OFDM仿真,详细,有资料,有程序。-Matlab file for simulating a cyclic-prefix (CP) orthogonal-frequency-
division-multiplexing (OFDM) system with binary phase-shift keying (BPSK)
modulation on each subcarrier. CP-OFDM system includes a repetition code
an
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bpsk ofdm over rayleigh channel Matlab code source
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用MATLAB实现OFDM系统中 ,在瑞利多径衰落信道下,用BPSK调制的误比特率曲线。-BER for BPSK in OFDM with Rayleigh multipath channel
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通过matlab软件对OFDM通信系统在高斯和瑞利信道下仿真-By matlab software OFDM communications system simulation in Gaussian and Rayleigh channel
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BPSK在OFDM系统不同信道下的误码率比较(This is a scr ipt for computing the BER for BPSK in OFDM modulation in the AWGN channel.)
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在OFDM系统中的瑞利衰落信道分布,描述了信号进入信道前后的变化,误码率对比(The Rayleigh fading channel distribution in the OFDM system describes the change of the signal before and after the channel, the bit error rate comparison)
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通信OFDM传输,信号通过加入导频,循环前缀,交织变换,经过瑞丽信道,通过QPSK解调,译码,判断误码率。(Communication OFDM transmission, the signal by adding pilots, cyclic prefix, interleaved transform, after Rayleigh channel, demodulated by QPSK, decoding, to determine the bit error rate.)
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