Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1977-12-08
1983-02-01
Hubler, Malcolm F.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 5CM, 343100CL, G01S 1389, G01S 1390
Patent
active
043718736
ABSTRACT:
A synthetic aperture radar correlation system including a moving diffuser located at the image plane of a radar processor. The output of the moving diffuser is supplied to a lens whose impulse response is at least as wide as that of the overall processing system. A significant reduction in clutter results.
REFERENCES:
patent: 3344419 (1967-09-01), Lund
patent: 3355579 (1967-11-01), Robertson
patent: 3398269 (1968-08-01), Williams
patent: 3483557 (1969-12-01), Skenderoff et al.
patent: 3526893 (1970-09-01), Skenderoff et al.
patent: 3560973 (1971-02-01), Kazel
patent: 3889226 (1975-06-01), Hildebrand
patent: 3953822 (1976-04-01), Vilkomerson
patent: 4019184 (1977-04-01), Dorey
patent: 4042928 (1977-08-01), Altes
"Speckle Removal by a Slowly Moving Diffuser Associated with a Motionless Diffuser", by S. Lowenthal et al., Journal of Optical Society of America, vol. 61, No. 7, p. 847, (1971).
"A Speckle--Free Rear--Projection Screen Using Two Closed Screens with Slow Relative Motion", J. Optical Society of America, vol. 66, p. 176, (1976).
Frosch Robert A. Administrator of the National Aeronautics and Space
Jain Atul
Hubler Malcolm F.
Manning John R.
McCaul Paul F.
Mott Monte F.
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