| 基于MATLAB的正交幅度调制系统仿真 |
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| 引用本文： | 马牧燕,冷俊敏,左秀峰. 基于MATLAB的正交幅度调制系统仿真[J]. 北京机械工业学院学报, 2005, 20(4): 21-24 |
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| 作者姓名： | 马牧燕 冷俊敏 左秀峰 |
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| 作者单位： | [1]北京机械工业学院电子信息工程系,北京100085 [2]北京理工大学管理与经济学院,北京100081 |
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| 摘 要： | 随着无线通信频带资源日趋紧张,研究和设计自适应信道调制技术体制是建立宽带移动通信网络的关键技术之一.正交幅度调制技术(QAM)是一种功率和带宽相对高效的信道调制技术,因此在自适应信道调制技术中得到了较多应用.利用MATLAB6.5/Simulink4.0对QAM调制系统进行仿真,在信噪比变化条件下,得到不同进制QAM系统的错误率,为自适应调制方式选择提供了依据;同时,为实际应用和科学合理地设计正交幅度调制系统,提供了便捷、高效、直观的仿真平台.
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| 关 键 词： | 正交幅度调制系统 仿真 |
| 文章编号： | 1008-1658（2005）04-0021-04 |
| 收稿时间： | 2005-09-24 |
| 修稿时间： | 2005-09-24 |
Simulation of quadrature amplitude modulation system based on MATLAB |
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| MA Mu-yan,LENG Jun-min,ZUO Xiu-feng. Simulation of quadrature amplitude modulation system based on MATLAB[J]. Journal of Beijing Institute of Machinery, 2005, 20(4): 21-24 |
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| Authors: | MA Mu-yan LENG Jun-min ZUO Xiu-feng |
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| Affiliation: | 1. Department of Electronic Information Engineering, Beijing Institute of Machinery, Beijing 100085, China;2. School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The research and design of adaptable channel modulation system is one of the key techniques in building a broadband mobile communication network with increasing shortage of wireless communication frequency-band.Because quadrature amplitude modulation(QAM) is efficient in power and bandwidth,it has been used widely in the field of adaptable channel modulation.The QAM system is simulated based on MATLAB6.5/Simulink4.0.Error rates of various QAM systems are obtained as the signal-to-noise changes.Therefore,it provides not only bases to choose modes of adaptable channel modulation but also a convenient and efficient simulation platform to design a QAM system practically and scientifically. |
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| Keywords: | MATLAB |
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