扩展卡尔曼滤波器
卡尔曼滤波器
快速卡尔曼滤波
光时域反射计
不变扩展卡尔曼滤波器
控制理论(社会学)
解调
光学
滤波器(信号处理)
物理
信号(编程语言)
计算机科学
算法
材料科学
相(物质)
人工智能
电信
计算机视觉
光纤
光纤传感器
频道(广播)
渐变折射率纤维
量子力学
控制(管理)
作者
A E Alekseev,B. G. Gorshkov,A. V. Bashaev,V. T. Potapov,M. A. Taranov,D E Simikin
出处
期刊:Laser Physics
[IOP Publishing]
日期:2021-03-01
卷期号:31 (3): 035101-035101
被引量:3
标识
DOI:10.1088/1555-6611/abd936
摘要
Abstract In the present paper, we propose an approach based on the Kalman filter for demodulation in a dual-pulse phase-OTDR. Although the Kalman filter is well-developed and widely used method for the state estimation of a dynamic system, its use for demodulation in a phase-OTDR is proposed for the first time, to our best knowledge. Two main algorithms are considered and described in detail: the extended Kalman filter (EKF) and the unscented Kalman filter (UKF), the first one is fast and simple, but the second one is more accurate. A qualitative comparison of these algorithms with the differentiate and cross-multiply (DCM) algorithm is performed. The efficiency of the EKF and the UKF algorithms is experimentally verified.
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