PROSIM broadband normal-mode model: a user's guide
PROSIM is a layered normal-mode model approach for adiabatic broadband range-dependent sound propagation. The kernel of this model is based on a recently developed range-independent model called ORCA, which includes a very efficient eigenvalue solver and frequency interpolation technique. The implem...
| Main Authors: | , , |
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| Format: | Other/Unknown Material |
| Language: | English |
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NATO. SACLANTCEN
2000
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| Online Access: | https://hdl.handle.net/20.500.12489/553 |
| Summary: | PROSIM is a layered normal-mode model approach for adiabatic broadband range-dependent sound propagation. The kernel of this model is based on a recently developed range-independent model called ORCA, which includes a very efficient eigenvalue solver and frequency interpolation technique. The implementation of range-dependency involved special handling of the range segments and the frequency interpolation to minimize hardware requirements and still keep the efficiency of the model. The computational speed of PROSIM is a function of the number of layers describing the environment in depth and the influence of the maximum frequency and bandwidth considered; nevertheless the calculation of broadband transfer functions up to 10 kHz in shallow water acoustic waveguides involving hundreds of modes and thousands of frequency components is performed in a few minutes on a state-of-the- art workstation. |
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