使用电信飞行员通过联合极化-分数域多重复合来实现通信和干扰色自由传感的内生集成
Optics express
|September 23, 2025
概括
电信飞行员通过使用分数里埃转换 (FrFT) 来区分信号并抑制衰减,使得连贯系统中的分布式声学传感 (DAS) 能够实现. 这种集成允许在高速数据传输的同时进行无干扰的传感.
科学领域:
- 光学通信是指光学通信.
- 传感技术 传感技术
- 信号处理 信号处理
背景情况:
- 标准连贯系统面临信号完整性和干扰方面的挑战.
- 分布式声学传感 (DAS) 提供了宝贵的环境监测能力.
- 整合通信和传感功能 (ISAC) 是一个有前途的研究方向.
研究的目的:
- 提出一种用于在标准连贯光学系统中实现分布式声学传感 (DAS) 的新方法.
- 通过使用电信飞行员来证明传感和通信 (ISAC) 的内生集成.
- 为了抑制干扰色,并提高DAS的性能.
主要方法:
- 使用用于DAS的偏振旋转估计设计的电信飞行员.
- 采用联合偏振-分数域多重复合与直角偏振和相反的频率调制 (FM) 斜率.
- 应用于信号压缩,提取和极化状态 (SOP) 监控的分数里叶变换 (FrFT).
主要成果:
- 在10.4公里的光纤上实现了200Gb/sDP-QPSK和400Gb/sDP-16QAM传输的同时,实现了无干扰色的DAS.
- 用1米空间分辨率证明了振动的动态测量.
- 从50dB降低到18dB的强度波动,合成的痕迹强度在噪声底线以上为3.7dB.
结论:
- 提出的方法成功地将通信和传感功能 (ISAC) 集成到一个标准的连贯系统中.
- 通过FrFT处理的电信飞行员对于SOP旋转监控和无干扰的DAS都有效.
- 该技术通过抑制色并实现高分辨率振动检测,显著提高了DAS性能.
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