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Description: QPSK的Matlab/Simulink的调制解调仿真系统，给出接收信号眼图及系统仿真误码率，包含载波恢复，匹配滤波，定时恢复等重要模块，帮助理解QPSK的系统-QPSK Matlab / Simulink simulation system modulation and demodulation, the received signal is given eye and BER simulation systems, including carrier recovery, matching filter, timing recovery and other important module to help understand the system QPSK
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Size: 7690 |
Author: 李向坤 |
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Description: QPSK的Matlab/Simulink的调制解调仿真系统，给出接收信号眼图及系统仿真误码率，包含载波恢复，匹配滤波，定时恢复等重要模块，帮助理解QPSK的系统-QPSK Matlab/Simulink simulation system modulation and demodulation, the received signal is given eye and BER simulation systems, including carrier recovery, matching filter, timing recovery and other important module to help understand the system QPSK
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Size: 7168 |
Author: 李向坤 |
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Description: QPSK modulation system with recover loops-This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.
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Size: 15360 |
Author: ranbowang |
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Description: MATLAB 眼图的实现。ploteye函数的使用即通过QPSK的调制解调的仿真以实现对函数的使用说明。-MATLAB implementation of the eye diagram. ploteye function through the use of QPSK modulation and demodulation of the simulation in order to achieve the function instructions.
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Size: 1024 |
Author: Faicy |
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Description: matlab code for generating eye diagram for qpsk
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Size: 1024 |
Author: Nyasha |
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Description: 基于matlab的通原模拟调制（幅度，角度调制）及数字调制（qpsk，眼图）等函数实现-Matlab simulation based on the communication of the original modulation (amplitude, angle modulation) and digital modulation (qpsk, eye) and other functions to achieve
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Size: 9179136 |
Author: wjj |
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Description: QPSK的Matlab/Simulink的调制解调仿真系统，给出接收信号眼图及系系统仿真误码率，包含载波恢复，匹配滤波，定时恢复等重要模块，帮助理解QPSK的系统
-QPSK modulation and demodulation of Matlab/Simulink simulation system, given the received signal eye diagram and other system simulation error rate, including carrier recovery, matched filtering, timing recovery and other important modules to help understand the QPSK system
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Size: 7168 |
Author: |
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Description: 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 systems and simulation tasks: 1) Design π/4-DPSK or 16-QAM modulator simulation program, draw time-domain waveform, quadrature component, in-phase component waveforms, eye diagrams, scatter plots, etc. 2) the use of MATLAB for DPSK in AWGN channel BER performance simulation, and the results are compared with PSK performance. 3) the known OFDM data transmission rate of 19.2Kbps, OFDM symbol length is 320, the guard interval is 32 points, the number of sub-carriers 128, IFFT/FFT points is 256, the carrier frequency is 320KHz, using the modulation scheme QPSK, simulation of the in Gaussian channel BER performance.
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Size: 268288 |
Author: wander |
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Description: 基于MATLAB的QPSK仿真图，包括误码率，星座图，眼图，方便大家使用-Based on MATLAB QPSK simulation diagram, including the bit error rate, constellation diagram, eye diagram, convenient use
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Size: 7168 |
Author: 常云川 |
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Description: 基于MATLAB simulink 的QPSK仿真，R2008下测试可运行。提供波形、频谱、眼图、星座图。-Based on MATLAB simulink simulation of QPSK, R2008 under test can be run. It provides waveform, spectrum, eye diagrams, constellations.
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Size: 13312 |
Author: tian |
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Description: 程序实现了基于MATLAB的pi/4 QPSK的仿真,系统在相同条件下，对加噪声和没有噪声的情况，分别画出了它的眼图分析其性能，及已调制信号的时域波形和频谱。-The program realizes the simulation of pi/4 QPSK based on MATLAB. Under the same condition, the system draws its eye diagram to analyze the performance of the noise and no noise, and the time domain waveform and spectrum of the modulated signal .
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Size: 2048 |
Author: luu |
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