大气与环境光学学报, 2018, 13 (3): 161, 网络出版: 2018-06-01  

干涉型光纤传感的相位载波调制解调算法

Phase Generated Carrier Modulation and Demodulation Algorithm of Interferometric Optic Fiber Sensor
作者单位
1 中国科学技术大学环境科学与光电技术学院,安徽 合肥 230026
2 中国科学院安徽光学精密机械研究所中国科学院大气光学重点实验室, 安徽 合肥 230031
摘要
相位载波调制解调算法是干涉测量的关键技术之一。阐述了相位载波的调制解调原理,说明了相关参数的最佳选取数值, 介绍了两种传统的相位载波解调算法,描述了相位载波算法存在的有限的动态范围问题、伴生调幅问题、载波相位延迟问题和相应的解决办法。 最后总结相位载波调制解调算法的问题并展望了光纤传感器的发展趋势。
Abstract
Phase generated carrier modulation and demodulation algorithm is one of the key technologies for interfering measurement. The principle of modulation and demodulation of phase generated carrier is elaborated, the best numerical values of relevant parameters are illustrated, the two traditional phase generated carrier algorithms are introduced, the problem of limited dynamic range, companion amplitude modulation, carrier phase delay and corresponding solutions are described. Finally, the problem related to phase generated carrier modulation and demodulation algorithm is summarized and the trend of optical fibre sensor is forecasted.
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郝其龙, 邵士勇, 李树旺, 梅海平, 饶瑞中. 干涉型光纤传感的相位载波调制解调算法[J]. 大气与环境光学学报, 2018, 13(3): 161. HAO Qilong, SHAO Shiyong, LI Shuwang, MEI Haiping, RAO Ruizhong. Phase Generated Carrier Modulation and Demodulation Algorithm of Interferometric Optic Fiber Sensor[J]. Journal of Atmospheric and Environmental Optics, 2018, 13(3): 161.

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