Method and apparatus for improving the slowly moving target dete

Details Method and apparatus for improving the slowly moving target dete Method and apparatus for improving the slowly moving target dete

1977-01-21

1978-04-25

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 902

Patent

active

040865908

ABSTRACT:
Detection of slowly moving and stationary targets that are normally obscured by ground clutter is accomplished by an AMTI synthetic aperture radar system that utilizes multiple receiving antennas mounted along the flight velocity vector of the radar bearing aircraft. Each antenna is separated by a distance d from each other. Synthetic arrays are formed by processing the radar returns from each antenna terminal. The radar PRF is controlled so that the aircraft flies a distance d during the interpulse period. The synthetic array outputs of adjacent pairs of antennas are subtracted to provide clutter cancellation. The resulting outputs from adjacent terminals can be used in a monopulse mode for angular discrimination.

REFERENCES:
patent: 3228028 (1966-01-01), Baum et al.
patent: 3603992 (1971-09-01), Goggins, Jr. et al.
patent: 3735399 (1973-05-01), Sletten et al.
patent: 3735400 (1973-05-01), Sletten et al.

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