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):
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:
Subject Categories:
- Target Direction, Range and Position Finding