Adaptive interference mitigation with a coupled nonlinear oscillator array beamformer

We present a novel implementation of an adaptive generalized sidelobe canceller beamformer, using a coupled nonlinear oscillator array in conjunction with an antenna array. This beamformer is applied in a narrowband wireless communication context, where there is contamination due to transmissions fr...

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Bibliographic Details
Main Authors: Ikuma, T., Beex, A.A., Zeidler, J.R., Meadows, B.K.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive arrays
Antenna arrays
Computer simulation
Contamination
Context
Interference
Narrowband
Optical coupling
Oscillators
Wireless communication
Online Access:Request full text
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Description
Summary:We present a novel implementation of an adaptive generalized sidelobe canceller beamformer, using a coupled nonlinear oscillator array in conjunction with an antenna array. This beamformer is applied in a narrowband wireless communication context, where there is contamination due to transmissions from similar systems. We have applied a least mean square like algorithm to compute weight updates so as to reject the interfering signals while maintaining the desired beam. The actual update of the beamformer weights is performed indirectly, via adjustment of the coupling parameters of the coupled nonlinear oscillator array. Computer simulations of the proposed approach are presented for a narrowband communication system. The simulation results show successful adaptation towards the rejection of the interfering communication signals
ISSN:1095-323X
2996-2358
DOI:10.1109/AERO.2006.1655828