分频DPD在中频系统中的畸变抑制

2018 International Topical Meeting on Microwave Photonics (MWP) Pub Date : 2018-10-01 DOI:10.1109/MWP.2018.8552872

H. Park, I. Ha, Sang‐Kook Han

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引用次数: 2

摘要

本文提出并实验验证了一种基于频率分离模型的中频光纤系统数字预失真技术。基于分频模型的DPD可以减轻传输系统中光电元件造成的失真。为了应用所提出的DPD技术，采用最小均方(LMS)算法推导预失真均衡器的系数。该方法减小了误差矢量的幅度，提高了相邻载波泄漏率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Distortion mitigation in IFoF system employing frequency-separated DPD

We propose and experimentally demonstrate a frequency-separated model based digital pre-distortion (DPD) technique in intermediate frequency over fiber system. Frequency-separated model based DPD could mitigate distortion caused by optical and electrical components in the transmission system. To employ the proposed DPD technique, least-mean-square (LMS) algorithm is used to derive the coefficients of pre-distorting equalizer. By the proposed DPD, error vector magnitude was decreased and adjacent carrier leakage ratio was increased.

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2018 International Topical Meeting on Microwave Photonics (MWP)

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