A matching pursuit method based on training an over-complete dictionary is investigated.By using the K-singular value decomposition(K-SVD)algorithm,an over-complete dictionary that describes the Lamb wave signals is t...A matching pursuit method based on training an over-complete dictionary is investigated.By using the K-singular value decomposition(K-SVD)algorithm,an over-complete dictionary that describes the Lamb wave signals is trained.The results demonstrate that the method can effectively remove redundant information and separate multiple Lamb wave modes.The matching pursuit method with the K-SVD algorithm shows its efficiency for Lamb wave signal processing.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos 11074164,11274226,11074273,61171145the Innovation Foundation of Shanghai Municipal Commission of Education(No 11YZ17)the Ph.D.Foundation of Ministry of Education of China(20103108120011)。
文摘A matching pursuit method based on training an over-complete dictionary is investigated.By using the K-singular value decomposition(K-SVD)algorithm,an over-complete dictionary that describes the Lamb wave signals is trained.The results demonstrate that the method can effectively remove redundant information and separate multiple Lamb wave modes.The matching pursuit method with the K-SVD algorithm shows its efficiency for Lamb wave signal processing.
