Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1982-06-17
1985-10-08
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 5CM, 343 7ED, G01S 1390
Patent
active
045463549
ABSTRACT:
Distortions inherent in the formation of a range/doppler image by an airborne Synthetic Aperture Radar (SAR) of a ship under the influence of roll, pitch, and yaw motions characteristic of a sea state conditions, are removed by the formation of a scaled range/azimuth image generated with the use of an interferometer antenna in conjunction wth the SAR. A least squares linear regression solution to doppler processed interferometric azimuth angle data derived from ship radar reflections permits the determination of aircraft to ship relative rotational motion essential to the development of such an improved high resolution radar image, so that continuous automatic tracking of a cursor imbedded in a single designate resolution cell of the ship's displayed image essential to carrying out precision standoff command weapon guidance to that selected ship target cell, can be accomplished.
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Barron Jr. Gilberto
Geib Richard G.
Grumman Aerospace Corporation
Hoffman Bernard S.
Tick Daniel J.
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