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OFDM系统采用QPSK、16QAM、64QAM调制每比特耗能对比-OFDM system using QPSK, 16QAM, 64QAM modulation contrast energy per bit
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此代码为π_4DQPSK解调源程序,用MATLAB实现,使用差分方式。-This demodulation π_4DQPSK source code using MATLAB to achieve, the use of differential mode.
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Simulation program to realize OFDM transmission system using( proposed slantlt transform instead FFT transform)with pilot channel estimation in a fading channel for (BPSK,QPSK,8PSK and 16PSK) modulation and for two type of error plot BER(Bit error ra
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There are 5sample files of qpsk, ofdm, scfde, alamouti and space time codings.
those of 5samples can be useful for using matlab user.
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turbo码的编解码程序,采用max-log-map算法,简单易用。程序采用QPSK调制,信道为AWGN-turbo code decoding process, using max-log-map algorithm, easy to use. Program uses QPSK modulation, AWGN channel is
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图4.7给出了V=4,相位集合的相位数分别为P=1、2、4、8时的随机分割的PTS-OFDM系统的CCDF的性能图。仿真参数:分割方法为随机分割,子载波数N=128,子载波数据采用QPSK调制,仿真的OFDM符号数为1000个。-Figure 4.7 shows the V = 4, the phase of the collection phase, respectively P = 1,2,4,8 were separated when the PTS-OFDM system perform
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采用QPSK调制方式实现OFDM,在simulink上搭建的仿真模块,可以很好的学习OFDM,验证通过。-Achieved using QPSK modulation OFDM, built on the simulink simulation module can be good learning OFDM.
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本程序是基于IFFT/FFT的OFDM系统模型的链路仿真,数据调制采用QPSK。-This procedure is based on the link of the IFFT/FFT OFDM system model simulation, data modulation using QPSK.
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实现MIMIO与OFDM的结合 利用的是QPSK的调制方式-MIMIO and realize the combination of the is using OFDM QPSK modulation method
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通信系统与仿真作业:
1)设计π/4-DPSK或16-QAM调制器仿真程序, 画出时域波形、 正交分量、同相分量波形,眼图,散点图等。
2)利用MATLAB进行DPSK在高斯信道下的BER性能仿真,并将结果与PSK性能进行比较。
3)已知 OFDM的数据传输速率为19.2Kbps, OFDM 符号长度为320,保护间隔为32点,子载波数为128,IFFT/FFT点数为256,载波频率320KHz,调制方案采用QPSK,仿真其在高斯信道下的BER性能。
-Communication
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进行OFDM系统的matlab仿真,其中采用的子载波数为8个。并且仿真了多普勒频移对OFDM的影响。基带调制采用QPSK-Matlab simulation for OFDM system, which USES the subcarrier number is eight.And simulation of the doppler shift effect on OFDM.Baseband using QPSK modulation
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加窗QPSK-OFDM调制解调,每个OFDM符号采用QPSK调制方式,并画出了时域对比图-Windowed QPSK-OFDM modulation and demodulation, each OFDM symbol using QPSK modulation and a time-domain comparison chart shown
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matlab环境下,采用802.11a系统物理层参数,一个长训练字与6个OFDM符号构成一帧,瑞丽信道,多普勒100Hz,采用QPSK调制,接收端估计误比特率-matlab environment, using 802.11a physical layer parameters, a word with six long training OFDM symbols of a frame, Ruili channel, Doppler 100Hz, using QPSK modulation, t
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ofdm的matlab仿真程序,使用qpsk调制,直接打开ofdm_matlab.m程序即可-ofdm matlab simulation program, using qpsk modulation, the program can directly open ofdm_matlab.m
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求仿真OFDM系统的性能,OFDM系统发端使用QPSK调制方式,选取64个子载波,16位CP(循环前缀)。-OFDM system simulation performance requirements, OFDM system using QPSK modulation originator select 64 sub-carriers, 16 CP (cyclic prefix).
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关于采用最大似然同步的OFDM的MATLAB仿真算法,其中调制采用的是QPSK。-About using the maximum likelihood algorithm MATLAB simulation of synchronous OFDM, which uses a modulation QPSK.
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This program demonstrates OFDM systems using QPSK modulation. OFDM system uses fft/ifft technique to transmit or receive parallel data streams.
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简单的OFDM仿真,采用QPSK调制,有串并转换,保护间隔,fft/ifft等-Simple OFDM simulation using QPSK modulation, there are serial to parallel conversion, guard interval, fft/ifft etc.
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用matlab 实现ofdm信道下qpsk 的调制(Using MATLAB to achieve QPSK modulation under OFDM channel)
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Using MATLAB to achieve QPSK modulation under OFDM channel
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