HARMONIC SIGNAL EXTRACTION FROM STRONG CHAOTIC INTERFERENCE
Fuping Wang, Jingbo Guo, Wang Zanji, Xiao Dachuan, Li Maotang, (1)清华大学电机工程与应用电子技术系,北京100084; (2)中国科学院空间科学中心,北京100080 · Acta Physica Sinica · 2001
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.