Sparse Transfer Response-Based Incoherent OFDR With High Accuracy and Low Overhead

IF 2.5 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-08-19 DOI:10.1109/LPT.2025.3600030

Lihan Wang;Jingxian Wang;Xi Liu;Haoran Wu;Wei Zhang;Yu Zhang;Yi Shao;Kaiyu Chen;Xiangchuan Wang;Shilong Pan

引用次数: 0

Abstract

An incoherent optical frequency domain reflectometry (I-OFDR) method enhanced by orthogonal matching pursuit (OMP) and phase-derived ranging (PDR) is proposed to enable high-accuracy multipath delay measurement with reduced computational complexity. Unlike traditional I-OFDR systems that require continuous linear frequency sweeping, the proposed method performs sparse RF response acquisition and avoids fixed frequency interval constraints inherent in Fourier-based analysis. Experimental results demonstrate that the proposed method achieves sub-picosecond-level multipath transfer delay accuracy while requiring only 10% of the frequency points needed by traditional I-OFDR methods, greatly reducing the signal processing requirement.

查看原文本刊更多论文

基于稀疏传输响应的高精度低开销非相干OFDR

提出了一种经正交匹配追踪（OMP）和相位衍生测距（PDR）增强的非相干光频域反射（I-OFDR）方法，以降低计算复杂度实现高精度的多径时延测量。与传统的I-OFDR系统需要连续线性扫频不同，该方法执行稀疏射频响应采集，避免了基于傅里叶分析固有的固定频率区间约束。实验结果表明，该方法实现了亚皮秒级的多径传输延迟精度，所需频率点仅为传统I-OFDR方法的10%，大大降低了信号处理要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.