Time Spread and Frequency Coherence in Acoustic Forward Scattering from the Sea Surface
Abstract
Measurements of the characteristic time spread L (in seconds) of surface forward scattering were made from the research platform FLIP in January 1992. These data were compared with a model for L and matched the model to within an average relative error of 30%. The inverse, L-1 (in hertz), is a measure of the coherence bandwidth of the channel and therefore important in both designing waveforms and determining signal-processing strategies. Using the model for L, simulators can assess realistic magnitudes of the coherence bandwidth of the surface channel as a function of source/receiver geometry and environmental conditions. Time spread, Frequency coherence, Sea surface slope, Environmental acoustics
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1994
- Accession Number
- ADA284736
Entities
People
- Azmi Al-kurd
- Peter Hans Dahl
Organizations
- University of Washington