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Updated: Feb 20, 2026

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在基于OFDR的分布式传感中,对超弱的FBG阵列进行强大且高效的解调
Optics express
|February 18, 2026
概括
一个新的解调方案改进了光学频域反射计 (OFDR) 的超弱纤维布拉格格 (UWFBG) 传感. 这种强大的方法提高了实际应用的检测效率和准确性.
科学领域:
- 光学工程是指光学工程.
- 光子学 是一个光子学.
- 传感技术 传感技术
背景情况:
- 光学频域反射计 (OFDR) 对于传感应用至关重要.
- 超弱纤维布拉格格 (UWFBG) 提供了灵敏的检测,但面临着解调挑战.
- 现有的Fiber Bragg Grating (FBG) 铭文不完美导致光谱扭曲,阻碍了传统的解调.
研究的目的:
- 为基于OFDR的UWFBG系统提出并展示一个强大的,高效的解调方案.
- 克服FBG铭文技术的局限性,影响拆解精度和效率.
- 为了提高基于OFDR的UWFBG传感的实际应用性.
主要方法:
- 该研究提出了一个基于布尼曼频率估计 (BFE) 算法的新型解调方案.
- BFE算法适用于FBG的粗略交叉相关谱的调节.
- 这种方法将交叉关联的抗噪能力与BFE的效率相结合.
主要成果:
- 拟议的算法实现了强大的解调性能,与传统方法相美.
- 在10米的测量范围内,解调效率显著提高了15.3倍.
- 该方法有效地解决了由FBG铭文缺陷引起的光谱分裂和扭曲问题.
结论:
- 开发的改造方案为基于OFDR的UWFBG传感提供了显著的效率和稳定性改进.
- 这一进步为UWFBG传感器技术的更可靠和更广泛的实际应用铺平了道路.
- 该算法成功地减轻了FBG铭文缺陷对传感数据的影响.
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