Algorithm that processes some of information in synthetic-aperture-radar (SAR) echoes from homogeneous targets yields optimal estimates of Doppler frequency shifts. Helps in further processing to extract as much information as possible about targets. Used to improve radiometric calibrations, to estimate direction of radar antenna, and to determine speeds of moving targets more accurately. Also helpful in measurements of speeds of ocean currents and of wind shears at airports.
Estimating SAR Doppler Shifts From Homogeneous Targets
NASA Tech Briefs ; 15 , 10
1991-10-01
Miscellaneous
No indication
English
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