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Bottom-reflection phase-shift estimation from ASIAEX data
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DOI：10.1109/JOE.2004.834180.png)
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摘要
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Based on the Wentzel-Kramer-Brillouin modal condition, the phase shift of the bottom reflection coefficient can be extracted. The required input data for this inversion is the modal wavenumber. In this paper. the amount of phase shift of the bottom-reflection coefficient is estimated front the 2001 Asian Sea International Acoustic Experiment data in the East China Sea, in the frequency range of 100-200 Hz. Modal wavenumhers are estimated front using the cross-spectrum density matrix (CSDM) of reverberation data and a mode-shooting method. The error associated with the estimated phase shift is also discussed.
Keyword:
SHALLOW-WATER
WAVE-GUIDE
INVERSION
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