Global ETD Search
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Showing 1 to 9 of 9 for “"BELLHOP"”.
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Real time bottom reverberation simulation in deep and shallow ocean environments
… ocean environment. Using the ray tracing code, BELLHOP, the Mission Oriented Operating Suite (MOOS), methods outlined by the Naval Research Laboratory (NRL) for bottom reverberation, and MATLAB, a model will be developed to incorporate the effects of bottom reverberation into the BELLHOP suite …
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Real time bottom reverberation simulation in deep and shallow ocean environments
… ocean environment. Using the ray tracing code, BELLHOP, the Mission Oriented Operating Suite (MOOS), methods outlined by the Naval Research Laboratory (NRL) for bottom reverberation, and MATLAB, a model will be developed to incorporate the effects of bottom reverberation into the BELLHOP suite …
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High frequency acoustic propagation and modeling in stratified estuaries
… be eroded and pushed back out during the ebb. BELLHOP, implemented via Matlab, is a beam/ray tracing method and is used to model the acoustic propagation in this environment using collected temperature, salinity, and depth data. Multiple modeling comparisons are done over the period of three …
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High Frequency Acoustic Propagation and Modeling in Stratified Estuaries
… be eroded and pushed back out during the ebb. BELLHOP, implemented via Matlab, is a beam/ray tracing method and is used to model the acoustic propagation in this environment using collected temperature, salinity, and depth data. Multiple modeling comparisons are done over the period of three …
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Real time active sonar simulation in a deep ocean environment
… Operating Suite (MOOS), ray tracing code BELLHOP as well as using the method outlined by the Naval Research Laboratory to simulate the effects of surface reverberation.
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When the Going Gets Tough, the Tough Write Poetry: A Biography of American Poet Walter Griffin
… of defiance and anger, of various jobs from bellhop on Nantucket Island to carnival barker in Florida to shady home-improvement contract salesman, and of vagabonding around the U.S. as he searched for what he calls 'the essence of the core of reality. ' Eventually named the Georgia Council …
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Environmental effects of the Beaufort Lens on underwater acoustic communications during Arctic operations
… beam forming was compared to the prediction from BELLHOP. As well, since acoustic communications are affected by multi-path, attenuation and interference from other sources it was interesting to note that bottom bounce was sometimes a reliable acoustic path.
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Environmental Effects of the Beaufort Lens on Underwater Acoustic Communications during Arctic Operations
… beam forming was compared to the prediction from BELLHOP. As well, since acoustic communications are affected by multi-path, attenuation and interference from other sources it was interesting to note that bottom bounce was sometimes a reliable acoustic path.
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Acoustical characterization of glacierized fjords
… a forward simulation of the environment using BELLHOP, a ray tracing code. The measured data and simulated results were compared, providing insight to the shape and reflection characteristics of brash ice. Nearly continuous acoustic data was collected over fifty-two hours in June 2021 on two …