基于dsp的光相干接收机的宽范围频偏估计

2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011) Pub Date : 2011-10-01 DOI:10.1109/IMOC.2011.6169347

J. Diniz, E. S. Rosa, V. Ribeiro, Julio Oliveira, A. Bordonalli

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引用次数: 2

摘要

我们提出了一种硬件高效、前馈、宽范围频偏估计器，用于基于dsp的光相干接收机，用于112 Gb/s PM-QPSK系统。该估计器能够使用简单的信号频谱关系估计±5 GHz范围内的偏移量。结果表明，即使使用归零信号，该估计器对由信号的光电滤波引起的频谱不对称也具有较好的鲁棒性。

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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Wide-range frequency offset estimator for DSP-based optical coherent receivers

We propose a hardware-efficient, feed-forward, wide-range frequency offset estimator for DSP-based optical coherent receivers, employed in 112 Gb/s PM-QPSK systems. This estimator is capable to estimate offsets in a range of ±5 GHz, using a simple relationship of signal spectrum. The obtained results show that this estimator is robust to spectrum asymmetry caused by electrical and optical filtering of the signal, even when using return-to-zero signals.

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2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011)

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