Coherent Fourier transform radiometer for determining the thickness distribution of an oil film on a body of water based on the brightness temperature of the oil film and water over a range of radiation frequencies

U.S. Patent Number: 5381442

Abstract: A radiometer is described which coherently detects the thickness of oil films on water by converting continuous-frequency microwave or millimeter-wave brightness temperature versus frequency measurements from the frequency/wavenumber domain to the oil-film-thickness domain (received power versus film thickness) using Fourier-transform signal processing.

Inventors: Brown; Elliott R. (Billerica, MA), Hogan; Gregory G. (Stowe, MA), Daniels; Gerald M. (Norwood, MA)

Assignee: Massachusetts Institute of Technology (Cambridge, MA)

Application Number: 08/041,728

Issued: 1995-01-10

Expired: 2007-01-10

Classes: 374/7 ; 702/172

Field of search: 374/6,7,120,124,122 364/563,576

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