An efficient technique for determining apparent temperature distributions from antenna temperature measurements
National Aeronautics and Space Administration, 1973 - Technology & Engineering - 33 pages
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AAFE RADSCAT antenna Aerial Smoothing antenna pattern weighting Antenna temperature Inversion antenna weights Antennas and Propagation apparent temperature distribution approximated auto-correlation Bracewell brightness temperature columns Compensation for antenna considered cross polarized field cross polarized pattern cross-correlation cross-coupling degree intervals dual polarized elliptically polarized emission characteristic emission components estimate the apparent flat scene functions graphs of Figure H PLANE PATTERN horizontally polarized emission illustrated in Figure Integral Equations integrand inversion problem inversion technique linear main beam modeling matrix nadir and zenith number of observation Numerical integration observation angles observation point otherhand Performing Organization polarizations to realize polarized character POLARIZED TEMPERATURE DISTRIBUTION radiation efficiency Radio Astronomy radiometer inversion model radiometry recover the apparent Remote Sensing sampled simulated antenna temperatures simulation studies sky conditions spherical bands ft spherical coordinate system surface polarizations temperature characteristic TEMPERATURE DISTRIBUTIONS SIMULATING University of Kansas unprimed coordinate system vertically polarized contribution vertically polarized observations weighting factors