.png){kind=icon}
返回
Spatial Resolution Optimization Technology of Raman OTDR Using Variable Sampling Rate
.png){kind=icon}
PRE
AI
DOI：10.1109/JSEN.2023.3264809.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The technology to improve the spatial resolution of distributed sensing has always been a research hotspot. In this article, a Raman optical time-domain reflectometer system with a variable sampling rate (VSR-ROTDR) and a spatial resolution optimization algorithm are designed, as shown in the figure, which makes the distribution of sampling points dense and improves spatial resolution. A point selection matrix based on the reconstruction algorithm is generated to reconstruct a 1-D high-precision signal. Furthermore, an optimization algorithm based on the reconstruction algorithm is designed, which can select the sampling rate and flexibly set the desired spatial resolution. Sampling rate combination and offset distance are set as the output of this algorithm to improve the response time and eliminate the blind area in the reconstruction process. The simulation results show that the reconstruction algorithm can improve the spatial resolution of the distributed temperature measurement system to 0.25 m at the cost of sampling ten times at different sampling rates (91-100 MHZ), representing a resolution gain of four times compared with the spatial resolution limited to 1 m by the acquisition card. This article also compares the sampling results at a single sampling rate, random sampling rate combination, and optimized sampling rate combination to certify the effectiveness of this technology. The sampling result at an optimized sampling rate combination has the highest measurement accuracy.
Keyword:
Spatial resolution
Temperature measurement
Optical fiber sensors
Optical fibers
Temperature sensors
Avalanche photodiodes
Reconstruction algorithms
Distributed temperature sensor (DTS)
particle swarm optimization (PSO) algorithm
sample rate
spatial resolution improvement
期刊
IF:
4.5
论文数:
2.2W
被引数:
7.3W
机构
引用论文
Chaos Raman Optical Time-Domain Reflectometry for Millimeter-Level Spatial Resolution Temperature Sensing用于毫米级空间分辨率温度传感的混沌拉曼光时域反射仪
OAAI
OAAI分享收藏Improving Spatial Resolution of Raman DTS Using Total Variation Deconvolution.png)
IEEE SENSORS JOURNAL
IEEE SENSORS JOURNALIF4.5
PREAI
分享收藏Reforma da Atenção Primária à Saúde no Rio de Janeiro: comemorando os 450 anos de fundação da cidade里约热内卢初级卫生保健改革：纪念建城450周年OAAI
OAAI分享收藏Genetic-optimised aperiodic code for distributed optical fibre sensorsNATURE COMMUNICATIONS
OAAI
NATURE COMMUNICATIONSIF15.7
OAAI分享收藏Evaluation of Fiber Optic Raman Scattering Distributed Temperature Sensor Between-196 and 400 °CIEEE SENSORS JOURNAL
IEEE SENSORS JOURNALIF4.5
PREAI
分享收藏
查看更多内容