Large-Aperture Sparse Array Detector System for Multiple Emitter Location.
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 array's aperture, and with directional sector selectivity corresponding to the angular width of the reference array's 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 25, 1989
- Accession Number
- ADD014303
Entities
People
- W. F. Gabriel
Organizations
- United States Department of the Navy