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Geoacoustic Inversion via Transmission Loss Matching and Matched Field Processing  

Kim Kyungseop (서울대학교 조선해양공학과)
Park Cheolsoo (한국해양연구원 해양시스템안전연구소)
Kim Seongil (국방과학연구소)
Seong Woojae (서울대학교 조선해양공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.24, no.6, 2005 , pp. 325-333 More about this Journal
Abstract
This paper proposes a geoacoustic inversion method for the experimental data or MAPLE 2004 experiment conducted in the East Sea of Korea in 2004 and shows source tracking test results to validate the Proposed inversion method. An objective function is defined as a correlation function of the measured and the simulated transmission loss data. The measured transmission data were obtained using a multi-tonal towed source and VLA. The VFSA (Very Fast Simulated Annealing) is applied to the inversion Problem which optimizes the objective function. After performing the inversion process for the S frequencies tonal data independently. geoacoustic models are constructed. Finally matched-field source tracking is Performed using the inverted parameters to verify them.
Keywords
Geoacoustic inversion; Transmission loss matching; VFSA; Matched-field source tracking;
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