All weather tactical strike system (AWISS) and method of operati

Details All weather tactical strike system (AWISS) and method of operati All weather tactical strike system (AWISS) and method of operati

1980-12-29

1992-12-15

Tubbesing, T. H.

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

Synthetic aperture radar

342191, G01S 1390

Patent

active

051721180

ABSTRACT:
An AWTSS is shown to be made up of an improved synthetic aperture radar (SAR) for generating radar maps with various degrees of resolution required for navigation of an aircraft and detection of ground targets in the presence of electronic counter-measures and clutter. The SAR consists, in effect, of four frequency-agile radars sharing quadrants of a single array antenna mounted within a radome on a "four axis" gimbal with a sidelobe cancelling subarray mounted at the phase center of each quadrant. Motion sensors are also mounted on the single array antenna to provide signals for compensating for vibration and stored compensating signals are used to compensate for radome-induced errors. In addition, a signal processor is shown which is selectively operable to generate radar maps of any one of a number of desired degrees of resolution, such processor being adapted to operate in the presence of clutter or jamming signals.

REFERENCES:
patent: 3680086 (1972-07-01), Valstar
patent: 4084158 (1978-04-01), Slawsby
patent: 4339752 (1982-07-01), Williams et al.
patent: 4387373 (1983-06-01), Longuemare, Jr.
patent: 4442431 (1984-04-01), Bleakney

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