Patent ID: 6127973
Filing Date: 2000-10-03
Classification: H01Q

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 (r), by using a signal vector (x(t)) provided from said array antenna at each snapshot, a final array output signal (y) of said telecommunication system at the last previous snapshot and a value of a gain vector (w) of the present snapshot, and for outputting said residue vector (r);a means for synthesizing a scalar value (.beta.), which is needed to generate a search direction vector (.upsilon.), from said residue vector (r);a means for producing said search direction vector (.upsilon.), by using said residue vector (r) and said scalar value (.beta.);a means for producing an adaptive gain (.rho.), by using said signal vector (x(t)), said search direction vector (.upsilon.), said final array output signal (y) of said telecommunication system at the last previous snapshot and the value of said gain vector (w) of the present snapshot; anda means for updating said gain vector (w), by using said search direction vector (.upsilon.) and said adaptive gain (.rho.) at the present snapshot.