Separation of Two-span Rotor Fault Signal Based on Second-order Statistics Blind Identification
MIAO Feng1,2,ZHAO Rong-zhen1
1.Key Laboratory of Digital Manufacturing Technology and Application, The Ministry of Education,Lanzhou University of Technology, Lanzhou, Gansu 730050, China;
2.Luoyang Normal University, College of Physics and Electronic Information Luoyang, Luoyang, Henan 471022, China
Abstract A algorithm of blind source separation is proposed based on the second-order statictics.The method focuses on noise separation rather than noise removal.So there are no harms to effective signals. This idea might provide a new way for noise reduction. The algorithm of blind source separation based on the second-order statistics blind identification is applied to seismic data.The results show that the algorithm is effect ,noises are separated and re-moved,and accurate is improved.
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2015, Vol. 36 
