An Ocean Medium Pulse Propagation Model Based On Linear Systems Theory And The Wkb Approximation
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An Ocean Medium Pulse Propagation Model Based on Linear Systems Theory and the WKB Approximation
A general, modular, pulse propagation model for underwater acoustics that is based on linear systems theory for sound speed profiles as a function of depth is presented. The development and computer implementation of the model, together with results from preliminary computer simulation studies involving the transmission of CW and LFM pulses from a planar array of complex weighted point sources is reported. The studies examined free-space propagation problems (i.e. no boundaries) in homogeneous and inhomogeneous media using a transfer function based on the WKB approximation. The two main outputs from the model are the predicted complex acoustic field as a function of frequency and spatial location and the time-domain output electrical signal from each element in a receive planar array. Thesis. (rrh).
An Ocean Medium Pulse Propagation Model Based on Linear Systems Theory and the WKB Approximation
A general, modular, pulse propagation model for underwater acoustics that is based on linear systems theory for sound speed profiles as a function of depth is presented. The development and computer implementation of the model, together with results from preliminary computer simulation studies involving the transmission of CW and LFM pulses from a planar array of complex weighted point sources is reported. The studies examined free-space propagation problems (i.e. no boundaries) in homogeneous and inhomogeneous media using a transfer function based on the WKB approximation. The two main outputs from the model are the predicted complex acoustic field as a function of frequency and spatial location and the time-domain output electrical signal from each element in a receive planar array. Thesis. (rrh).