Stepanova L.N.,Chaplygin Siberian Aviation Research Institute |
Ramazanov I.S.,Chaplygin Siberian Aviation Research Institute |
Kanifandin K.V.,Novosibirsk State University |
Kireenko V.V.,Sevmash Center for Engineering Research and Testing
Russian Journal of Nondestructive Testing | Year: 2011
A two-stage method for the clustering of acoustic-emission (AE) signals using their parameters and digitized shapes was considered. AE signals were initially clustered according to a set of their informative parameters; the primary clusters that were obtained using these parameters were then subjected to clustering using their digitized AE signal shape. The use of two-stage clustering for the processing of AE signals that were recorded at the moment of welding allowed the calculation time to be reduced without loss of localization accuracy. © 2011 Pleiades Publishing, Ltd.