Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Patent
1997-04-18
2000-10-03
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
342383, 342384, G01S 316, G01S 328
Patent
active
061279730
ABSTRACT:
A signal processing apparatus for minimizing interference and for reducing effects of noise by controlling beam patterns of a telecommunication system having an array antenna, comprising: a means for computing a residue vector, by using a signal vector provided from said array antenna at each snapshot, a final array output signal of said telecommunication system at the last previous snapshot and a value of a gain vector of the present snapshot, and for outputting said residue vector; a means for synthesizing a scalar value, which is needed to generate a search direction vector, from said residue vector; a means for producing said search direction vector, by using said residue vector and said scalar value; a means for producing an adaptive gain, by using said signal vector, said search direction vector, said final array output signal of said telecommunication system at the last previous snapshot and the value of said gain vector of the present snapshot; and a means for updating said gain vector, by using said search direction vector and said adaptive gain at the present snapshot.
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Choi Seung Won
Yun Dong Un
Blum Theodore M.
Korea Telecom Freetel Co., Ltd.
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