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 .理论分析和计算机仿真实验都表明该方法非常有效 A new method of extracting the masked harmonic signals from strong chaotic disturbances is proposed.According to the inherent geometry of the chaotic attractor and the concept of the manifold space of differential manifolds, chaotic disturbances and harmonic signals are respectively projected onto the chaotic attractor The sub-manifold space and its complement space are successfully separated from each other.Theoretical analysis and computer simulation results show that this method is very effective