Techniques in numerical differentiation of experimentally noisy data
A comparison of different methodologies for spatial differentiation of experimental noisy data is presented. The transient displacement fields resulting from bending wave propagation on aluminum plate were measured with pulse TV-holography. A new method to perform the numerical spatial differentiati...
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| Other Authors: | , |
| Format: | conferenceObject |
| Language: | eng |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10198/4506 |
| Country: | Portugal |
| Oai: | oai:bibliotecadigital.ipb.pt:10198/4506 |
| Summary: | A comparison of different methodologies for spatial differentiation of experimental noisy data is presented. The transient displacement fields resulting from bending wave propagation on aluminum plate were measured with pulse TV-holography. A new method to perform the numerical spatial differentiation and a strategy for dealing with the border problem are presented. The method here presented results for the third order derivative and showed to be superior to the other methods tested. A good agreement between the new method and the Finite Elements Method was achieved. |
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