Imaging analysis of photorefractive phased array beamforming

Gregory Kriehn; Andrew M. Kiruluta; Paulo E. X. Silveira; Samuel P. Weaver; Kelvin H. Wagner

doi:10.1117/12.326747

14 October 1998 Imaging analysis of photorefractive phased array beamforming

Gregory Kriehn, Andrew M. Kiruluta, Paulo E. X. Silveira, Samuel P. Weaver, Kelvin H. Wagner

Proceedings Volume 3462, Radar Processing, Technology, and Applications III; (1998) https://doi.org/10.1117/12.326747
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

We present the analytical description of a photorefractive phased array beamforming system using the BEAMTAP (Broadband and Efficient Adaptive Method for True-Time-Delay Array Processing) algorithm for a large N-element array that requires only 2 tapped delay lines (TDLs) instead of the conventional N TDLs. Simulation results indicate that the processor is able to adapt to a broadband signal of interest at a specific angle of arrival. We show that the system produces a coherent sum of the desired signals from the phased array, with the corresponding time delays appropriately compensated for in an adaptive fashion without prior knowledge of the angle-of-arrival.

Citation Download Citation

Gregory Kriehn, Andrew M. Kiruluta, Paulo E. X. Silveira, Samuel P. Weaver, and Kelvin H. Wagner "Imaging analysis of photorefractive phased array beamforming", Proc. SPIE 3462, Radar Processing, Technology, and Applications III, (14 October 1998); https://doi.org/10.1117/12.326747

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