Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Patent
1992-02-10
1992-12-29
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
G01S 316, G01S 328
Patent
active
051755580
ABSTRACT:
An adaptaive nulling antenna control system (24) which is effective in constraining pulse jammer duty factors. The system (24) accepts signals from a multibeam antenna (40) in a coded communication network (10). A band stop filter (50) removes the communication signal and analyzes the various antenna channels to form a nulling signal which is then combined with the original antenna signal to effectively null the jamming signal in those directional channels in which the jamming signal appears. The system (24) utilizes a successive over-relaxation type algorithm featuring scaling, eigenvalue shifting, and adaptive memory to give a fast attack time and slow release. The system (24) can be implemented in a pipeline architecture to further increase processing speed.
REFERENCES:
patent: 4651155 (1987-03-01), Baurle et al.
patent: 4931977 (1990-06-01), Klemes
Blum Theodore M.
Schivley G. Gregory
Taylor Ronald L.
TRW Inc.
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