Accession Number : AD0742448

Title :   Ray Tracing with Non-Linear Profiles.

Descriptive Note : Technical rept.,

Corporate Author : ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FLA

Personal Author(s) : Weinberg,Norman L.

Report Date : APR 1972

Pagination or Media Count : 46

Abstract : In the report, the derivation of the general form of the acoustic ray paths for various non-linear profiles is developed. The most useful of these paths, the ellipse and hyperbola, are derived in a form suitable for use with sound velocity profiles encountered in the ocean. Expressions for travel time, initial angle, and spreading loss were also determined for the ellipse and hyperbola. Represented analytically was a typical sound velocity profile from the Straits of Florida which yeilds an ellipse for the upper region and a hyperbola for the lower region with the slope of the two curves constrained to be equal at the junction point. (Author)

Descriptors :   (*UNDERWATER SOUND, EQUATIONS OF MOTION), ELLIPSOIDS, ANALYTIC GEOMETRY, TRANSDUCERS, CURVE FITTING, ATLANTIC OCEAN, FLORIDA STRAIT

Subject Categories : Physical and Dynamic Oceanography
      Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE