Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Patent
1970-08-12
2000-12-26
Buczinski, Stephen C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
342371, G01S 316, H01Q 322
Patent
active
061666890
ABSTRACT:
An adaptive beamformer and signal processor for sonar and other signal receptor arrays, in which beamforming is accomplished by correlation feedback loops providing matched weighting across the array. To constrain the adaptive beamformer thus comprised against cancellation of useful signals from a particular angular region, which normally is the beam mainlobe or boresight region, one or more spatial notch filters are interposed within the correlation feedback loops for preventing signal suppression within such angular region.
REFERENCES:
patent: 3202991 (1965-08-01), Howells
patent: 3500303 (1970-03-01), Johnson
Widrow et al, "Adaptive Antenna Systems", Proc. of IEEE, vol. 55 No. 12, Dec. 1967, pp 2143-2159.
Dickey, Jr. Frank R.
Gostin Judson J.
Hammel Gene P
Huhta Kalevi Hoobert
Vural Ayhan M.
Buczinski Stephen C.
Checkovich Paul
Lockheed Martin Corporation
Morrissey John J.
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