Accession Number:

ADD015529

Title:

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

Descriptive Note:

Patent, Filed 25 Nov 88, patented 1 Sep 92,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1992-09-01

Pagination or Media Count:

7.0

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 arc 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.

Subject Categories:

  • Target Direction, Range and Position Finding

Distribution Statement:

APPROVED FOR PUBLIC RELEASE