Accession Number : ADA327218

Title :   Development of an EO Wave Imaging System on PELICAN, a Remotely Piloted Aircraft.

Descriptive Note : Final rept.,

Corporate Author : ARETE ASSOCIATES ARLINGTON VA

Personal Author(s) : Selwyn, Philip ; Jendro, Larry ; Farruggia, Guy

PDF Url : ADA327218

Report Date : 30 MAY 1997

Pagination or Media Count : 29

Abstract : In this report Arete proposes the development of an electro-optical wave imaging system and its installation on the Pelican remotely piloted aircraft. This system would collect a time series of electro-optical images over a precisely fixed area of the ocean to provide wave spectra which would be analyzed to determine important coastal ocean parameters such as bathymetry, wave characteristics and surface currents. The coastal-zone of the ocean is spatially and temporally complex, exhibiting a number of physical processes occurring simultaneously. Specific items of interest include ocean swell, wind-driven waves, mean and variance in turbulent fluxes, breaking waves and currents. in the coastal zone, the situation is complicated by significant spatial gradients that cause inhomogeneities on relatively small spatial scales. Although small on geophysical scales, these coastal features are too extensive and complex to be measured well by a small number of research vessels or buoys, yet they are too small and vary too rapidly to be measured by satellite sensors. What is needed is an instrument system that can measure many of the required parameters, but is small and lightweight so that it can be mounted in an aircraft and therefore cover a wide area of interest over relatively long span of time.

Descriptors :   *ELECTROOPTICS, *REMOTELY PILOTED VEHICLES, DIGITAL SYSTEMS, SPATIAL DISTRIBUTION, COASTAL REGIONS, OCEAN WAVES, DETECTORS, AIRCRAFT, PARAMETERS, WIND, TIME SERIES ANALYSIS, TURBULENCE, SURFACES, BATHYMETRY, SPECTRA, SCALE, IMAGES, MILITARY CAPABILITIES, ARTIFICIAL SATELLITES, CAMERAS, INSTRUMENTATION, GEOPHYSICS, WAVES, CURRENTS, GRADIENTS, BUOYS, GUN TURRETS, RESEARCH SHIPS.

Subject Categories : Pilotless Aircraft
      Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE