On Radar Interferometric Techniques in the Situation of Volume Scatter
B. H. Briggs
Abstract
A volume scatter situation is assumed, and results expected from radar
interferometric techniques are derived. It is shown that fictitious
scattering points will appear, with the property that the points for
different Doppler frequencies lie along a straight line.
This line is not in general in the direction of the wind;
only if the scatter is isotropic in azimuth will the line coincide with
the wind direction. In the presence of turbulence, the effective scattering
points still lie along a straight line. However the scattering
point for a particular Doppler frequency will be closer to the zenith
than it would be in the absence of turbulence. The results apply if smoothed
cross-spectra are used. If the cross-spectra are not smoothed,
the expected effects are harder to predict.
Status
This paper has been accepted for publication in Radio Science.
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