| OFDM系统研究及其Simulink仿真 |
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| 引用本文： | 张天瑜.OFDM系统研究及其Simulink仿真[J].吉林工学院学报,2008,29(6):699-704. |
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| 作者姓名： | 张天瑜 |
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| 作者单位： | 无锡市广播电视大学机电工程系,江苏无锡214011 |
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| 摘 要： | 正交频分复用（Orthogonal Frequency Division Multiplexing，OFDM）是一种高效的多载波宽带数字调制技术，在无线通信系统中有较广泛的应用。通过对OFDM系统的基本原理以及该系统中各个模块的特点进行研究，用Simulink构建数字电视地面广播（Digital Television Terrestrial Broadcasting，DTTB）中的TDS—OFDM系统仿真模型。仿真结果表明，TDS—OFDM系统的误码率较低，具有较强的抗多径衰落和频率选择性衰落能力。
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| 关 键 词： | 正交频分复用 Simulink仿真 多径效应 码间干扰 载波间干扰 块间串扰 奈奎斯特准则 误码率 |
Research of OFDM system and Simulink simulation |
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| ZHANG Tian-yu.Research of OFDM system and Simulink simulation[J].Journal of Jilin Institute of Technology,2008,29(6):699-704. |
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| Authors: | ZHANG Tian-yu |
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| Institution: | Department of Mechanical and Electrical Engineering;Wuxi Radio & Television University;Wuxi 214011;China |
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| Abstract: | OFDM is an efficient multi-carrier broadband digital modulation technology,which is widely used in wireless communication system.First the basic principle of OFDM system and characteristics of the respective modules in OFDM system are studied,and then the simulation model of TDS-OFDM system in DTTB is established with Simulink.The simulation results show that the bit error rate of TDS-OFDM system is lower and it has the better ability of anti-multipath fading and anti-frequency selective fading. |
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| Keywords: | OFDM Simulink simulation multipath effect ISI ICI IBI Nyquist criterion bit error rate |
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