无线电通信技术Issue(6)：27-31,5.DOI:10.3969/j.issn.1003-3114.2015.06.07
一种短波衰落信道下FSK信号FFT解调方法
A Demodulation Method Using FFT for FSK Signals in HF Fading Channel
王晓亚1
作者信息
- 1. 中国电子科技集团公司第五十四研究所，河北 石家庄050081
- 折叠
摘要
Abstract
The paper introduces some traditional FSK demodulation methods.In HF fading channels,due to the effect of multi⁃path and fading,traditional FSK demodulation methods may deteriorate in performance,even not being able to obtain the correct bit streams. A FFT⁃based demodulation method is proposed by analyzing the generation of FSK signal,the Fast Fourier Transform and the Short Time Fourier Transform.And the implementation of the method is introduced in detail. The simulation results show that this method is as efficient as the non⁃correlation demodulation algorithms.For fading signals,this method,as compared with other demodulation methods, provides a good demodulation result,which proves its engineering applicability.关键词
FSK信号/Fast Fourier Transform( FFT)/解调Key words
FSK signal/FFT/demodulation分类
信息技术与安全科学引用本文复制引用
王晓亚..一种短波衰落信道下FSK信号FFT解调方法[J].无线电通信技术,2015,(6):27-31,5.
