FSK信号的Duffing振子检测方法  

The detection of FSK signal based on Duffing oscillator

作　　者：万云朝[1] 朱传明[1] 周磊 

机构地区：[1]武汉军械士官学校,武汉430075 [2]河南省军区司令部,郑州450000

出　　处：《信息技术》2014年第6期103-106,共4页Information Technology

摘　　要：基于Duffing振子的弱信号检测由于检测门限较低而受到关注,近年来的研究集中于寻找未知信号幅值、频率、相位的准确测量方法。根据FSK信号的特点,提出一种用Duffing振子检测微弱FSK信号的方法,实验证明,该方法有效,且能大幅降低检测门限。The method of detecting weak signal based on Duffing oscillator is widely concerned due to its low SNR detection limit. Recently, the research is concentrated on the accurate measurement of unknown signal amplitude, frequency and phase. In this paper, a new method is proposed to demodulate FSK signal based on Duffing oscillator. The experiment proves it could detect FSK signal efficiently and is super/or to the traditional methods.

关 键 词：DUFFING振子 弱信号检测 FSK信号 

分 类 号：TN911.23[电子电信—通信与信息系统]