Accession Number:

ADD014303

Title:

Large-Aperture Sparse Array Detector System for Multiple Emitter Location.

Descriptive Note:

Patent Application, Filed 25 Sep 89,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Gabriel, W. F.

Report Date:

1989-11-25

Pagination or Media Count:

13.0

Abstract:

A detector beamformer array system having a sparse array and a reference array. The reference array is adapted, according to known principles, to have an output response with one main lobe significantly larger than all other side lobes, and with a substantially flat response. Signals received by both arrays are cross-correlated with one another, and only signals sufficiently correlated are annunciated. The resulting adaptive array system has a resolution even better than that of the sparse arrays aperture, and with directional sector selectivity corresponding to the angular width of the reference arrays mainlobe, providing a system having high resolution and directional selectivity, but with far fewer sensors than with filled arrays used for this purpose. Patent applications. RH

Descriptors:

• *ANTENNA ARRAYS
• *BEAM FORMING
• *ANTENNA APERTURES
• *PATENT APPLICATIONS
• *DIRECTION FINDING
• ADAPTIVE SYSTEMS
• ANGLES
• ANTENNA LOBES
• DETECTORS
• DIRECTIONAL
• EMITTERS
• HIGH RESOLUTION
• POSITION(LOCATION)
• SIDELOBES
• SIGNALS
• WIDTH

Subject Categories:

• Target Direction, Range and Position Finding

Distribution Statement:

APPROVED FOR PUBLIC RELEASE