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. Platform: |
Size: 15360 |
Author:ranbowang |
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Description: 基于matlab和vhdl的通信原理gmsk调制算法，主要包括GMSK相位路径的计算,GMSK眼图的仿真以验证相位计算的正确性,正余弦表的量化及bin文件的生成,以及用VHDL硬件语言所描述的基于EPM7128的地址逻辑.-Matlab and vhdl based on the principle gmsk Modulation of communication, including GMSK phase path calculation, GMSK eye diagrams of the simulation to verify the correctness of the phase calculation, is the cosine table generating quantitative and bin files, and using VHDL hardware description language logic based on the address of EPM7128. Platform: |
Size: 460800 |
Author:zenpging |
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Description: 基于matlab的数字基带系统各种调制解调链路，包括am,ssb,pcm等，对调制信号，误码率，眼图等进行了仿真-Matlab-based system, a variety of digital baseband modem link, including am, ssb, pcm, etc., on the modulation signal, the error rate, eye diagrams simulated Platform: |
Size: 1324032 |
Author:zenpging |
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Description: 16qam调制，matlab语言实现，包括眼图，误码率，信噪比-16qam modulation, Matlab language, including eye diagrams and bit error rate, signal to noise ratio Platform: |
Size: 1024 |
Author:郑振兴 |
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Description: 基于matlab实现△M调制解调系统的仿真，采用了高斯信道，分析了其眼图、误码率等性能-Of △ M modem system simulation, based on matlab using Gaussian channel, its eye diagrams and bit error rate performance Platform: |
Size: 864256 |
Author:薛 |
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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. Platform: |
Size: 268288 |
Author:wander |
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Description: 基于Matlab通用调制解调方法的GUI设计，包括眼图及星座图各种调制性能指标。-General modulation and demodulation method based on Matlab GUI design, including eye and constellation diagrams of various modulation performance. Platform: |
Size: 227328 |
Author:黄肎 |
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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. Platform: |
Size: 13312 |
Author:tian |
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Search - Eye diagrams matlab