正交频分复用系统的原理与仿真实现 毕业论文(设计).doc
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正交频分复用系统的原理与仿真实现 毕业论文(设计),[摘 要] 正交频分复用(ofdm, orthogonal frequency division multiplexing) 是一种特殊的多载波方案,它可以被看作一种调制技术,也可以被当作是一种复用技术｡选择ofdm的一个主要原因在于该系统能够很好地对抗频率选择性衰落或窄带干扰｡ofdm 由...
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[摘 要] 正交频分复用(OFDM, Orthogonal Frequency Division Multiplexing) 是一种特殊的多载波方案,它可以被看作一种调制技术,也可以被当作是一种复用技术｡选择OFDM的一个主要原因在于该系统能够很好地对抗频率选择性衰落或窄带干扰｡OFDM 由于其频谱利用率高,成本低等原因越来越受到人们的关注｡
本文简述了OFDM技术的发展及应用，分析了OFDM系统的优缺点，介绍了OFDM的原理以及调制解调的模型，并作为系统仿真的理论基础。在以上工作的基础上，本文采用MATLAB仿真软件对OFDM系统进行仿真。
[关 键 词] 正交频分复用 正交相移键控 仿真 MATLAB
The theory and simulation of orthogonal frequency division multiplexing system
[Abstract]：OFDM is a special kind of the carrier, it can be regarded as one of modulation technique, also a kind of multiplexing technology .One of the main reason to choose OFDM is that the system will be available against frequency selective fading or narrow-band interference. Because of its high frequency spectrum utilization , OFDM get attention of people increasingly.
This paper describes the development and application of OFDM technology, analyzes the advantages and disadvantages of OFDM system is introduced, and the principle of OFDM modulation and demodulation of the model, and as the theoretical basis of system simulation. Based on the above work, we use the simulation software MATLAB OFDM system is simulated.
[Key Words]：OFDM QPSK SIMULATION MATLAB
本文简述了OFDM技术的发展及应用，分析了OFDM系统的优缺点，介绍了OFDM的原理以及调制解调的模型，并作为系统仿真的理论基础。在以上工作的基础上，本文采用MATLAB仿真软件对OFDM系统进行仿真。
[关 键 词] 正交频分复用 正交相移键控 仿真 MATLAB
The theory and simulation of orthogonal frequency division multiplexing system
[Abstract]：OFDM is a special kind of the carrier, it can be regarded as one of modulation technique, also a kind of multiplexing technology .One of the main reason to choose OFDM is that the system will be available against frequency selective fading or narrow-band interference. Because of its high frequency spectrum utilization , OFDM get attention of people increasingly.
This paper describes the development and application of OFDM technology, analyzes the advantages and disadvantages of OFDM system is introduced, and the principle of OFDM modulation and demodulation of the model, and as the theoretical basis of system simulation. Based on the above work, we use the simulation software MATLAB OFDM system is simulated.
[Key Words]：OFDM QPSK SIMULATION MATLAB
