Spatial Coherence of a Signal Reflected from a Time-Varying Random Surface.
Abstract
The coherence between two points of the received acoustic waveform after reflection from a time varying random surface is evaluated for the far field case. A Neumann-Pierson spectrum and an isotropic sea is considered. For the low roughness case, the coherence is computed for wind speeds from 2 to 10 knots. For the specular and non-specular direction, the coherent region is on the order of the pattern resulting from the insonified surface area. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 23, 1971
- Accession Number
- ADA046689
Entities
People
- Benjamin F. Cron
Organizations
- Naval Undersea Warfare Center