摘要
提出一种新的从强混沌干扰中提取被掩蔽的谐波信号的方法 .依据混沌吸引子固有的几何性质 ,借助微分流形切空间的概念 ,将混沌干扰和谐波信号分别投影到混沌吸引子所在流形的切空间及其补空间 ,从而成功地将二者分离 .
The problem of signal extraction from received data contaminated with strong chaotic interference has been investigated and a novel approach to this problem is proposed based on the geometry of chaotic interference. According to this approach, chaotic attractor is first reconstructed from the received data, then in the way of projecting chaotic interference and harmonic signals into the local tangent space and its transverse space of the manifold in which the attractor lies, the two signals are successfully separated. Excellent results were achieved from the computer simulation experiments, which verify the effectiveness of the approach.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第6期1019-1023,共5页
Acta Physica Sinica
基金
国家重点基础研究专项经费! (批准号 :G19980 2 0 3 0 7)资助的课题&&
