Resolution Enhancement of Ultrasonic Signals using Autoregressive Spectral Extrapolation
Time of Flight Diffraction (TOFD) is one of the most accurate ultrasonic methods for crack detection and sizing in pipeline girth welds. Its performance, however, is limited by the temporal resolution of the signal. In this thesis, we develop a signal processing method based on autoregressive spectr...
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| Language: | en_ca |
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2011
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| Online Access: | http://hdl.handle.net/1807/29619 |