Computing Where Perturbations Affect the Acoustic Impulse Response in the Ocean
2018 ◽
Vol 26
(02)
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pp. 1850004
Keyword(s):
We compute accurate maps of oceanic perturbations affecting transient acoustic signals propagating from source to receiver. The technological advance involves coupling the one-way wave equation (OWWE) propagation model with the theory for the Differential Measure of Influence (DMI) yielding the map. The DMI requires two finite-frequency solutions of the acoustic wave equation obeying reciprocity: from source to receiver and vice versa. OWWE satisfies reciprocity at basin-scales with sound speed varying horizontally and vertically. At infinite frequency, maps of the DMI collapse into rays. Mapping the DMI is useful for understanding measurements of acoustic perturbations at finite frequencies.
2009 ◽
Vol 8
(3)
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pp. 199-230
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Keyword(s):
2012 ◽
Vol 12
◽
pp. 1116-1121
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2018 ◽
Vol 16
(4)
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pp. 1017-1041
2020 ◽
Vol 9
(5)
◽
pp. 8223-8227
Keyword(s):
2011 ◽
Vol 186
(2)
◽
pp. 740-750
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Keyword(s):