基于Duffing振子的FSK信号检测  

Detection of FSK Signal Based on Duffing Oscillator

作　　者：任磊磊[1] 李健[1,2] 孙涛[1] 

机构地区：[1]四川大学电子信息学院,四川成都610064 [2]西南交通大学信息编码与传输四川省重点实验室,四川成都610031

出　　处：《通信技术》2009年第2期51-53,共3页Communications Technology

基　　金：四川省应用基础研究项目(2008JY0048);西南交通大学信息编码与传输四川省重点实验室开放研究基金(LF08007)。

摘　　要：基于Duffing振子的检测方法由于具有极低检测下限而引起广泛关注,但现有文献主要讨论的是正弦信号的检测。文章提出了将Duffing振子应用到FSK信号检测中的新方法,实验表明该方法能将信噪比低于-10dB的微弱FSK信号检测出来,并且优于传统的FSK信号检测方法。The detection method based on Duffing oscillator is widely concerned due to its very low SNR detection limit, however, the but the now available literatures mainly focus on the detection of sinusoidal signal In this paper, a new method is proposed to realize experiment proves that this method can realize the and is superior to the traditional methods. the detection of FSK signal by using Duffing oscillator. The detection of weak FSK signal when the SNR is less than -10dB

关 键 词：DUFFING振子 FSK信号(移频键控信号) 信号检测 

分 类 号：TN911.23[电子电信—通信与信息系统]