Synthetic aperture radar with dead-ahead beam sharpening capabil

Details Synthetic aperture radar with dead-ahead beam sharpening capabil Synthetic aperture radar with dead-ahead beam sharpening capabil

1989-12-21

1990-12-18

Barron, Jr., Gilberto

Communications: directive radio wave systems and devices (e.g.,

Synthetic aperture radar

G01S 1390

Patent

active

049789619

ABSTRACT:
A synthetic aperture radar is disclosed, having the capability of dead-ahead beam sharpening. A monopulse antenna having sum and difference ports is employed, generating from the radar returns sum port signals and difference port signals. The respective sum and difference port signals are provided to respective first and second SAR processors. The processor output data is processed to separate the returns from each side of the SAR velocity vector and yield an unambiguous, doppler beam sharpened ground map about the velocity vector.

REFERENCES:
patent: 4064510 (1977-12-01), Chabah
patent: 4134113 (1979-01-01), Powell
patent: 4387373 (1983-06-01), Longuemare
patent: 4853699 (1989-08-01), Easton

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