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| 傅里叶变换在4G/5G移动通信系统中的应用 |
| Application of Fourier Transform in 4G/5G Mobile Communication Systems |
| 投稿时间：2016-10-20 |
| DOI：10.16018/j.cnki.cn32-1650/n.201702015 |
| 中文关键词: 信号与系统 傅里叶变换 滤波器组 OFDM FBMC |
| 英文关键词: Signals and Systems Fourier transform filter bank OFDM FBMC |
| 基金项目:江苏省自然科学基金项目(BK20140881) |
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| 中文摘要: |
| 以《信号与系统》中核心内容傅里叶变换在最前沿的移动通信系统中的应用为切入点，用《信号与系统》中最基础的常用信号的傅里叶变换，傅里叶变换的频移性、调制定理、抽样定理、滤波器组等知识，对4G/5G移动通信系统中的关键技术OFDM技术和FBMC技术的原理进行了分析，得出了FBMC系统各滤波器频谱之间的干扰远小于OFDM系统的结论。 |
| 英文摘要: |
| Taking the core content of "signals and systems", that is, the application of Fourier transform in mobile communication system at the forefront as an entry point, by using Fourier transform of the most commonly used signals in "signals and systems", and the frequency shift of Fourier transform, modulation theorem, sampling theorem, filter bank and so on, the principle of key technologies such as OFDM technology and FBMC technology in 4G·G mobile communication systems are analyzed. It is concluded that the interference between the spectrum of the filters in the FBMC system is much smaller than that of the OFDM system. |
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