摘要
利用Duffing方程对频率的极端敏感性产生阵发混沌现象,研究了一种利用该现象定量检测未知的微弱周期信号的各项参数的新方法,通过理论分析和实例仿真证明了该方法的可行性,并针对仿真结果提出了改进措施,提高了检测精度.
We use the extreme frequency sensitivity of Duffing’s equation to produce intermittent chaos（we call it “breather”） and propose a new method to quantitatively detect the parameters of unknown weak periodic signals. The theoretical analysis and instance simulation have proved its feasibility. We also put forward a way to improve the detection results and enhance the accuracy.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第2期816-825,共10页
Acta Physica Sinica
关键词
DUFFING方程
阵发混沌
检测信号参数
Duffing’s equation intermittent chaos detecting the parameters of signals
