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Description: QAM通信系统用matlab进行仿真，希望对大家的学习和工作有所帮助！-QAM communications system simulation using Matlab, we want to study and work some help! -QAM communication systems using matlab simulation, in the hope that the U.S. be helpful to study and work!-QAM communications system simulation using Matlab, we want to study and work some help!
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Size: 831488 |
Author: 孤星泪 |
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Description: MQAM调制方式
本文主要介绍了正交幅度调制(QAM)调制和解调的原理和实现，MQAM与OFDM，MPSK的性能比较，以及MQAM在有扰信道下的性能及其改进方法：信道编码和频域均衡。并在已知特性的通信信道上进行仿-MQAM modulation This paper mainly introduces the quadrature amplitude modulation (QAM) modulation and demodulation principle and realize, MQAM with OFDM, MPSK Performance Comparison, as well as MQAM in Scrambling channel performance and its improvement: channel coding and frequency domain balanced. And characteristics of the communication channel known for imitation
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Size: 5120 |
Author: luobin |
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Description: 加性高斯白噪声衰减信道的QAM调制源代码，包含误码率仿真-Additive white Gaussian noise attenuation channel QAM modulation source code, including bit error rate simulation
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Size: 1024 |
Author: 李晓宇 |
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Description: 用matlab做的qam的基本原理仿真，清晰明了，有相应结果，可作为qam调制的入门教程。-QAM matlab to do with the basic principles of simulation, clarity, have corresponding results can be used as QAM Modulation Tutorial.
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Size: 1024 |
Author: 阿飞 |
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Description: QAM的调制解调完整仿真程序，带有GUI图形界面，便于观察仿真结果，推荐初学通讯的朋友下载-QAM modulation and demodulation of the integrity of the simulation program with a GUI graphical interface, easy to observe the simulation results, recommended beginner communications Friend Download
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Size: 99328 |
Author: 陈世民 |
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Description: QAM的调制与解调程序，不能单独使用，但可以在主程序中调用-QAM modulation and demodulation process, should not be used alone, but in the main program can call
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Size: 1024 |
Author: 吴琼 |
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Description: 该代码是在MATLAB中写的模拟通信系统中QAM调制技术的代码，该代码很好的应证了QAM调制的原理-The code is written in the MATLAB simulation of communication systems QAM modulation code, the code should be very good evidence of the QAM modulation principle
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Size: 322560 |
Author: dean |
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Description: 该程序在matlab环境下运行，可QAM实现调制解调过程。包括内插、成形滤波、判决等多个程序模块。-err
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Size: 2048 |
Author: snow |
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Description: 用MATLAB对QAM进行仿真计算（32QAM）-QAM using MATLAB to carry out simulation (32QAM)
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Size: 28672 |
Author: 陈醋 |
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Description: M-QAM的MATLAB源代码-M-QAM the MATLAB source code
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Size: 7168 |
Author: air |
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Description:
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Size: 178176 |
Author: 吴世仁 |
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Description: 盲均衡中的应用，CMA+DDLMS（常数模+判决引导最小均方）算法的Matlab程序，用来处理16-QAM信号。-Application of blind equalization, CMA+ DDLMS (Constant Modulus+ Decision-directed least mean square) algorithm of Matlab procedures used to deal with 16-QAM signal.
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Size: 2048 |
Author: linning |
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Description: QAM数据调制的编码过程，自己编写的，对于传真数据编码有参考作用-QAM data modulation coding process, I have written, for fax data coding useful reference
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Size: 6144 |
Author: cuijianbing |
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Description: 介绍了QAM调制的星座图，对于学习QAM调制的有一定的指导意义。-Introduction of the QAM modulation constellation diagram for QAM modulation of learning have a certain significance.
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Size: 241664 |
Author: 林林 |
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Description: 用matlab实现了qpsk和QAM信号的调制和解调-Matlab achieved with QPSK and QAM signal modulation and demodulation
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Size: 397312 |
Author: jiayongchang |
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Description: QAM调制函数，对产生的二进制数进行qam调制，调制原理是对产生的二进制数进行串并转换，然后分为两路再进行qpsk调制-QAM modulation function, the resulting binary number for QAM modulation, modulation principle is generated binary number and converted to string, and then further divided into two QPSK modulation
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Size: 1024 |
Author: mhx |
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Description: 该程序在matlab环境下，对16QAM进行了调制解调的仿真，并对过程作出了图形的演示-The program in the matlab environment, carried out on the 16QAM modulation and demodulation of the simulation, and process the graphics demo
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Size: 121856 |
Author: 李仪 |
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Description: WLAN仿真－发送机
wlan No Comments
设置完系统参数后，开始产生发送数据。
1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波，形成OFDM符号
4. 产生pilot，并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft，将频域信号变到时域，并加入循环前缀
7. 对信号进行overlap window
8. 在时域产生short preamble
9. 在时域产生long preamble
10. 将preamble和数据符号组成packet
11. 升采样
得到信道传输的数据Tx_signal_up
具体程序见附件 wlan_transmitter.m-WLAN Simulation- wlan No Comments transmitter system parameters set finished, the beginning to have to send data. 1. Have sent random bit (tx_bits), here does not consider channel coding. 2. QAM mapping 3. The data is mapped to a different carrier to form OFDM symbols 4. Have a pilot, and pilot inserted OFDM symbols 5. Adding dc and guard subcarriers 6. To carry out ifft, will change the frequency domain signal to time domain, and add cyclic prefix 7. the signals overlap window8. In the time domain have a short preamble9. In the time domain have a long preamble10. the preamble and data symbols packet11. or sampling received data transmission channel Tx_signal_up specific procedures see Annex wlan_transmitter.m
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Size: 1024 |
Author: 福东方 |
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Description: Matlab实现QPSK和16-QAM的仿真，绘制信号散点图及相应时域波形图-Matlab realization of QPSK and 16-QAM simulation, rendering the signal scatter and the corresponding time-domain waveform
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Size: 1024 |
Author: wowoo |
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Description: QPSK/QAM simulink的仿真-QPSK/QAM simulink simulation
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Size: 196608 |
Author: shun081 |
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