相关实验视频
Updated: Jul 15, 2026
16:11
Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
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概括
一种新方法通过测量和补偿道之间的时间延迟,有效地抑制光纤传感阵列中激光引入的相位噪声 (LPN). 这种技术提高了信号质量,提高了降噪性能.
科学领域:
- 光电学是指光电子产品.
- 光纤传感技术是指光纤传感技术.
- 信号处理 信号处理
背景情况:
- 纤维传感阵列的时间延迟显著降低了激光引入的相位噪声 (LPN) 抑制.
- 参考干扰仪方案对道间时间延迟敏感.
研究的目的:
- 提出并验证一种用于测量和补偿光纤传感阵列时间延迟的方法.
- 为了增强纤维传感系统中LPN的抑制.
主要方法:
- 通过计算校准信号之间的相差来确定时间延迟.
- 使用数字信号序列的时间转移来补偿时间延迟.
- 在五元传感器阵列上进行实验验证.
主要成果:
- 在四个通道中实现了23.1-26.8dB的LPN抑制.
- 在补偿信号中,背景噪声比率降低5-8dB.
- 验证了时间延迟剩余和采样率之间的相关性.
结论:
- 拟议的方法有效地弥补了道间时间延迟.
- 优化方法提高了补偿的有效性.
- 在传感器阵列中促进显著的LPN抑制.
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