| 正交频分复用系统的性能仿真分析 |
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| 引用本文： | 官捷,惠晓威.正交频分复用系统的性能仿真分析[J].计算机测量与控制,2008,16(4):538-541. |
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| 作者姓名： | 官捷 惠晓威 |
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| 作者单位： | 辽宁工程技术大学,电子与信息工程学院,辽宁,葫芦岛,125105 |
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| 摘 要： | 正交频分复用(OFDM),因为它在无线多径衰落信道下具有较好的传输特性,正越来越受到人们的关注;OFDM是一种先进的抗符号间干扰(ISI,Inter—Symbol Interference)的高速传输技术;文中对其技术特点原理进行了研究,利用Simulink进行OFDM系统链路级的仿真,在不同的信道情况条件下,分别采用MQAM(多进制正交幅度调制)与MPSK(多进制相位调制)两种调制方式进行仿真,并且分析仿真结果,得到两种调制方式在OFDM系统中的性能对比。
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| 关 键 词： | OFDM Simulink 符号间干扰(ISI) 多进制正交幅度调制 多进制相位调制 |
| 文章编号： | 1671-4598(2008)04-0538-03 |
| 修稿时间： | 2007年7月3日 |
Analysis of the Performance of Orthogonal Frequency Division Multiplexing System Based on Simulation |
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| Guan Jie,Hui Xiao wei.Analysis of the Performance of Orthogonal Frequency Division Multiplexing System Based on Simulation[J].Computer Measurement & Control,2008,16(4):538-541. |
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| Authors: | Guan Jie Hui Xiao wei |
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| Affiliation: | Guan Jie Hui Xiao wei (Electronics and Information College,Liaoning Technical University,Huludao 125105,China) |
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| Abstract: | OFDM(Orthogonal Frequency Division Multiplexing)is attracting more and more people's concern,because of its good per- formance in the radio multipat-fading channel.OFDM is an advanced High-speed transmission technology which can resist ISI.There are some researches of special technology principles of OFDM.The simulation of OFDM on different radio multipat-fading channels will be es- tablished by using Simulink.The OFDM system in simulation uses MQAM modulation and MPSK modulation.It will make a summary of performance comparison between MQAM and MPSK in OFDM system by analyzing results of simulation. |
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| Keywords: | OFDM Simulink inter symbol interference(ISI) MQAM MPSK |
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