Signal processing method for use in an array antenna system...

Details Signal processing method for use in an array antenna system... Signal processing method for use in an array antenna system...

2005-09-27

2005-09-27

Tse, Young T. (Department: 2637)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S144000, C370S335000, C370S342000

Reexamination Certificate

active

06950457

ABSTRACT:
A signal processing method is for use in an array antenna system included in a Code Division Access (CDMA) mobile telecommunications network base station. The signal processing method includes initializing a weight vector and a snapshot index; obtaining a gradient of output power of an array antenna to a phase of each of the antennas in the array antenna system at every snapshot and determining whether an adaptive gain is added or subtracted depending on the signature of the gradient to update the phase of each antenna; and determining a weight value for each of the antennas to apply the weight value to a signal received at the corresponding one of the antennas.

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patent: 6434375 (2002-08-01), Chulajata et al.
patent: 09191209 (1996-01-01), None
T.A. Denidni and G.Y. Delisle, “A Nonlinear Algorithm for Output Power Maximization of an Indoor Adaptive Phased Arraay”, IEEE Transactions on Electromagnetic Compatibility, vol. 37, No. 2, pp. 201-209 (May 1995).

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