Experimental demonstration of a broadband adaptive processor for phased-array antennas

Gregory R. Kriehn; Kelvin Wagner

doi:10.1117/12.561769

22 October 2004 Experimental demonstration of a broadband adaptive processor for phased-array antennas

Gregory R. Kriehn, Kelvin Wagner

Proceedings Volume 5557, Optical Information Systems II; (2004) https://doi.org/10.1117/12.561769
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

This paper presents experimental results demonstrating adaptive beam forming and jammer nulling for phased-array antenna applications using the Broadband Efficient Adaptive Method for True-time-delay Array Processing (BEAMTAP) algorithm. The BEAMTAP algorithm has the advantage of mapping efficiently into an opto-electronic architecture that minimizes the required number of tapped-delay lines and simultaneously allows for the signals to be processed coherently, assuming that phase stabilization has been achieved. The architecture also utilizes a unique polarization-angle, read-write multiplexing system that allows for 45 dB of total jammer suppression at the output. Successful narrowband and broadband adaptive beam forming and jammer nulling results are provided in the worst-case scenario of co-site interference where both the jamming signal's angle of incidence and spectral content overlap with that of the signal of interest.

Citation Download Citation

Gregory R. Kriehn and Kelvin Wagner "Experimental demonstration of a broadband adaptive processor for phased-array antennas", Proc. SPIE 5557, Optical Information Systems II, (22 October 2004); https://doi.org/10.1117/12.561769

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