Result-oriented lumped error correction for photonic-assisted broadband phased array processors

Imperfect optoelectronic devices deteriorate the performance of microwave photonic (MWP) systems and then hinder further practical application. This paper proposes a result-oriented lumped error correction to address the problem in the photonic-assisted broadband phased array. Herein, we focus on th...

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Veröffentlicht in:Optics express 2023-07, Vol.31 (15), p.24749-24759
Hauptverfasser: Chen, Xiaoxue, Li, Shangyuan, Bai, Zhuoya, Xue, Xiaoxiao, Zheng, Xiaoping
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container_end_page 24759
container_issue 15
container_start_page 24749
container_title Optics express
container_volume 31
creator Chen, Xiaoxue
Li, Shangyuan
Bai, Zhuoya
Xue, Xiaoxiao
Zheng, Xiaoping
description Imperfect optoelectronic devices deteriorate the performance of microwave photonic (MWP) systems and then hinder further practical application. This paper proposes a result-oriented lumped error correction to address the problem in the photonic-assisted broadband phased array. Herein, we focus on the evolution of the ultimate output resulting from various errors due to the nonideality of components. By establishing the static calibration base set (CBS) with tangent line approximation, the correction procedure is simplified, and the output degradation is greatly improved. Experimental results show the effective number of bits (ENOB) at the final output has been enhanced from 2.5 to 6.1. Further, double objectives optimization and imaging correction are demonstrated experimentally. The range resolution has been boosted from 3.9 cm to 2.4 cm, and the quality of the inverse synthetic aperture radar (ISAR) images is improved using the proposed method.
doi_str_mv 10.1364/OE.488768
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title Result-oriented lumped error correction for photonic-assisted broadband phased array processors
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