• CN：11-2187/TH
• ISSN：0577-6686

›› 2006, Vol. 42 ›› Issue (9): 149-153.

• 论文 •

强干扰下复杂系统的独立源识别方法

1. 浙江大学机械工程系;嘉兴学院机电工程学院
• 发布日期:2006-09-15

METHOD FOR RECOGNITION OF INDEPENDENT SOURCES OF COMPLEX SYSTEM UNDER STRONG INTERFERENCES

JIAO Weidong;YANG Shixi;QIAN Suxiang;YAN Gongbiao

1. Mechanical Engineering Department, Zhejiang University College of Mechanical & Electrical Engineering, Jiaxing University
• Published:2006-09-15

Abstract: In order to identify independent sources from a complex system under strong noisy environment, a method for sources recognition based on a compound PCA-ICA network is proposed, by use of such features as principal components pro- jection with PCA and redundancy reduction with ICA. By combining PCA and ICA, their advantages are brought into play well, and every independent sources embedded into multi-channel observation by sensors are separated. By use of an adaptive revision based on fast fourier transform (FFT) and maximum correlation criterion (MCC), blind indeterminacy of the estimated sources by ICA is eliminated effectively, and the sources and their mixing matrix are restored correctly. Thus, different independent sources are recognized. The result of simulation imply that the new method is not only effective, but also of great potential in sources recognition of complex sys- tem.