Phased array beamforming using nonlinear oscillators

Michael Gabbay; Michael L. Larsen; Lev S. Tsimring

doi:10.1117/12.562903

26 October 2004 Phased array beamforming using nonlinear oscillators

Michael Gabbay, Michael L. Larsen, Lev S. Tsimring

Proceedings Volume 5559, Advanced Signal Processing Algorithms, Architectures, and Implementations XIV; (2004) https://doi.org/10.1117/12.562903
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

We describe a concept in which an array of coupled nonlinear oscillators is used for beamforming in phased array receivers. The signal that each sensing element receives, beam steered by time delays, is input to a nonlinear oscillator. The nonlinear oscillators for each element are in turn coupled to each other. For incident signals sufficiently close to the steering angle, the oscillator array will synchronize to the forcing signal whereas more obliquely incident signals will not induce synchronization. The beam pattern that results can show a narrower mainlobe and lower sidelobes than the equivalent conventional linear beamformer. We present a theoretical analysis to explain the beam pattern of the nonlinear oscillator array.

Citation Download Citation

Michael Gabbay, Michael L. Larsen, and Lev S. Tsimring "Phased array beamforming using nonlinear oscillators", Proc. SPIE 5559, Advanced Signal Processing Algorithms, Architectures, and Implementations XIV, (26 October 2004); https://doi.org/10.1117/12.562903

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