Acoustic Scattering from Composite Wind-Wave Surfaces II: Backscatter Cross Sections and Doppler Effects at High Frequencies and Small Angles for 'Bubble-Free' Regimes
Abstract
The present study continues the investigation of the author embodied in NUSC Technical Document TD-78205. Here we are again concerned with underwater acoustic scattering from the random moving wind-wave surface of the ocean. In particular, we are concerned with high frequency O(5-20 kHz), small grazing angle configurations O(5-25), and near-surface as well as volume regimes which are bubble-free vis-a-vis surface effects. Our efforts here are specifically directed to the calculation of doppler shift an doppler spread produced by the wind-driven ocean surface. Included also is a summary of a more complete model of the soliton scattering mechanism originally postulated and described. This more complete model is based on recent work of Middleton and Mellen.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 22, 1986
- Accession Number
- ADA176081
Entities
People
- David Middleton
Organizations
- Naval Underwater Systems Center