Interference eliminating method in adaptive array system and...

Details Interference eliminating method in adaptive array system and... Interference eliminating method in adaptive array system and...

2007-02-14

2009-02-03

Wachsman, Hal D (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S191000, C702S194000

Reexamination Certificate

active

07487068

ABSTRACT:
The present invention relates to an interference eliminating method in an adaptive array system, and an array processing device using the interference eliminating method. A predetermined array weight is applied to signals input through respective array elements, and the respective input signals to which the array weight is applied are added to generate an array output signal. Subsequently, the array weight is updated based on the array output signal and a first convergence parameter for unit gain constraint, and the array weight is updated based on the array output signal and a second convergence parameter for null constraint. Since a process for generating the array output signal is repeatedly performed based on the updated array weight, an interference signal is eliminated from the input signal.

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Chang et al., “Performance of DMI and eigenspace-based beamformers”, Nov. 1992, IEEE, IEEE Transactions on Antennas and Propagation, vol. 40, issue 11, pp. 1336-1347.

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