Sparse Transfer Response-Based Incoherent OFDR With High Accuracy and Low Overhead
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.
Authors
- Jingxian Wang
- Xiangchuan Wang (ORCID: https://orcid.org/0000-0002-8112-1271)
- K. Chen
- Shilong Pan (ORCID: https://orcid.org/0000-0003-2620-7272)
- Xi Liu (ORCID: https://orcid.org/0000-0003-0501-8309)
- Lihan Wang (ORCID: https://orcid.org/0000-0002-9067-6519)
- Yu Zhang (ORCID: https://orcid.org/0000-0002-2052-2231)
- Wei Zhang (ORCID: https://orcid.org/0000-0002-1614-1786)
- Yi Ming Shao (ORCID: https://orcid.org/0009-0004-0298-5322)
- Hanwei Wu (ORCID: https://orcid.org/0000-0001-7001-7965)
Institutions
- Nanjing University of Aeronautics and Astronautics (CN)
Publication Details
- Journal
- IEEE Photonics Technology Letters
- Published
- 2025-08-19
- DOI
- https://doi.org/10.1109/lpt.2025.3600030
- Primary Topic
- Sparse and Compressive Sensing Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Fundamental Research Funds for the Central Universities