Research on Modal Identification of Structures Using Robust Second-Order Blind Identification Technique
2013 ◽
Vol 389
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pp. 712-720
Keyword(s):
The paper discusses the basic principle of blind source separation algorithm applying in structural modal identification. By improving the signal-whitening method, a robust second-order blind identification (RSOBI) algorithm is established on the basis of second-order statistics. The modal responses and mode shapes can be obtained using the RSOBI algorithm from the observed data of structures in time domain. Frequency and damping are estimated from the modal responses by traditional single degree of freedom methods. The simulation results show that the RSOBI algorithm has good performance in modal identification of structures.
2010 ◽
Vol 139-141
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pp. 2132-2135
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2020 ◽
Vol 2020
(0)
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pp. 212
Keyword(s):
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1998 ◽
Vol 120
(4)
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pp. 970-975
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2014 ◽
Vol 538
◽
pp. 379-382
1988 ◽
Vol 54
(507)
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pp. 2550-2556
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Keyword(s):
2012 ◽
Vol 60
(8)
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pp. 4415-4420
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Keyword(s):