Calculation of RMS Slope of Carrier Waves in a Composite-Roughness Sea Surface Model,

Abstract

For calculating RADAR clutter or SONAR reverberation from the sea surface, the best results are achieved by applying a composite-roughness model. The underlying idea is that the small wavelets ('ripples') primarily responsible for the backscattering are carried by longer waves with higher amplitudes ('swell'), which affect the scattering process in a non-linear way. It has been shown in a previous paper that the parameter describing the coupling of the long- and short-wave scattering is the rms slope of conceptual 'facets' on the long waves. This paper develops methods for determining a suitable facet length and for calculating the rms facet slope. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1974
Accession Number
AD0776583

Entities

People

  • Wolfgang Bachmann

Organizations

  • SACLANT ASW Research Centre

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Backscattering
  • Carrier Waves
  • Clutter
  • Composite Materials
  • Couplings
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Radar Clutter
  • Reverberation
  • Roughness
  • Scattering

Readers

  • Acoustical Oceanography.
  • Coastal Oceanography
  • Thin Film Deposition Science.