Share Email Print
cover

Proceedings Paper

Multi-point location algorithm for distributed optical fiber disturbances detection system
Author(s): He Wang; Qizhen Sun; Xiaolei Li; Jianghai Wo; Deming Liu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A novel data processing algorithm named “2-FFT” for multi-point disturbances detection and location in an in-line Sagnac sensing system is proposed and demonstrated. When multiple disturbances are applied onto the sensing fiber at the same time, the frequency response curve of the modulated phase will be superposed by each null frequency curve of the single disturbance. However, by applying a second-time FFT to the frequency spectrum, the location corresponding to each disturbance point could be simply extracted and determined. Based on the theoretical and the experimental investigation, the “2-FFT” algorithm is demonstrated to be reasonable and efficient.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892417 (15 October 2013); doi: 10.1117/12.2031503
Show Author Affiliations
He Wang, Huazhong Univ. of Science and Technology (China)
Qizhen Sun, Huazhong Univ. of Science and Technology (China)
Xiaolei Li, Huazhong Univ. of Science and Technology (China)
Jianghai Wo, Huazhong Univ. of Science and Technology (China)
Deming Liu, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

© SPIE. Terms of Use
Back to Top