Seminar Notes on Sound Ray Tracing and Isointensity Contours in the Ocean: July 11-17, 1965Ordinance Research Laboratory, The Pennsylvania State University, 1965 - Acoustic imaging |
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absorption acoustic approach axial ray axis Bermuda Bermuda Contours binormal bottom loss boundary break-points C₁ calculations caustic computer program constant curvature curvilinear decibels derivative differential equation evaluated Figure Frenet Formulas function given gradient grazing angle GRAZING ANGLE DEGREES h₂ initial angle input integral intensity interface linear maximum minimum obtain ocean bottom output parameters Pennsylvania State University ping cycle plot potentiometers PROBABILITY OF DETECTION problem pulse R₁ ray equation ray theory Ray Tracing rayplotter receiver depth reflection loss reverberation level Security Classification sediment segments shadow zone signal excess slope Snell's law solution sound field sound velocity source depth SPONSORING MILITARY tangent target depth threshold level torpedo torsion transmission loss U. S. Naval Ordnance U. S. Navy Underwater Underwater Sound Laboratory vector velocity profile velocity-depth structure vertex Y₁ Y₂ Z₁ Z₂ zero