Ground clutter suppression and runway imaging via radar ground mapping
AssigneeRockwell Collins, Inc.
InventorsJames B. West, Venkata A. Sishtla
Life of this patent
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Abstract
A radar system includes an AESA and at least one ground mapping linear array that operate on a separate receive channel and send I/Q digital terrain mapping data to a radar processing unit. The linear arrays provide constant ground mapping. The AESA may have more than one panel. Panels may be arranged as a chevron with the linear arrays disposed at the periphery. The AESA and linear arrays may be configured as a radar interferometer for track location and/or geolocation. The linear arrays may be configured as near field probes for insitu calibration.
Claims20
A radar antenna comprising:
- at least one AESA panel;
- and
- at least one linear array disposed along an edge of the AESA panel.
A radar system comprising:
- a radar antenna comprising:
- at least one AESA panel;
- and
- at least one linear array disposed along an edge of the AESA panel;
- and
- at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:
- drive the at least one AESA panel to produce a multimode main radar beam;
- and
- drive the at least one linear array to produce a ground mapping fan beam.
An aircraft comprising:
- a radar antenna comprising:
- at least one AESA panel;
- and
- at least one linear array disposed along an edge of the AESA panel;
- and
- at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:
- drive the at least one AESA panel to produce a multimode main radar beam;
- and
- drive the at least one linear array to produce a ground mapping fan beam.
Dependencies are inferred from the claim text.