Accession Number:

ADA275368

Title:

Physical Optics Approximations to Forward Scattering by Elastic Spherical Shells and Rigid/Soft Spheres

Descriptive Note:

Journal article (Final)

Corporate Author:

NAVAL RESEARCH LAB STENNIS SPACE CENTER MS

Personal Author(s):

• George, Jacob
• Werby, Michael

Report Date:

1993-01-01

Pagination or Media Count:

8.0

Abstract:

Numerical results demonstrate that both Fraunhofer and Fresnel diffractions provide good approximations to forward scattering by elastic spherical shells and rigidsoft spheres, for non-dimensional frequency values 5 or ka or 40 and scattering angles 0 deg or 0 or 10 deg. The calculations were done for the far field, with incident plane waves. Signal processing, Classification, Antisubmarine warfare, Underwater acoustics.

Descriptors:

• *SIGNAL PROCESSING
• *UNDERWATER ACOUSTICS
• *FORWARD SCATTERING
• FREQUENCY
• REPRINTS
• NUMERICAL ANALYSIS
• SPHERES
• PLANE WAVES
• FRESNEL INTEGRALS
• ELASTIC SHELLS
• SOLAR SPECTRUM
• ANTISUBMARINE WARFARE
• FAR FIELD
• OPTICAL ANALYSIS
• DIFFRACTION
• APPROXIMATION(MATHEMATICS)
• CLASSIFICATION

Subject Categories:

• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE