DocumentCode :
3006347
Title :
A Method for Improving BOTDR System Performance
Author :
Li, Yongqian ; Wang, Jun ; Yang, Zhi
Author_Institution :
Dept. of Electron. & Commun. Eng., North China Electr. Power Univ., Baoding, China
fYear :
2012
fDate :
21-23 May 2012
Firstpage :
1
Lastpage :
4
Abstract :
The signal-to-noise ratio (SNR) and spatial resolution are conflicting factors in conventional Brillouin optical time domain reflectometer (BOTDR) system. Golay complementary sequence with good autocorrelation properties, can be used as probe pulse, in order to achieve a higher SNR without compromising the spatial resolution of the system. This paper discusses the composition method of Golay complementary sequences, studies the principle applying Golay complementary sequences in BOTDR system. On this basis, a heterodyne detection BOTDR sensing system using Golay complementary sequences is designed and the system performances in time and frequency domain are simulated numerically. The results show that the method can improve the SNR of the system without degrading the spatial resolution.
Keywords :
Golay codes; fibre optic sensors; frequency-domain analysis; heterodyne detection; reflectometers; BOTDR system performance; Brillouin optical time domain reflectometer system; Golay complementary sequence; SNR; autocorrelation properties; frequency-domain analysis; heterodyne detection BOTDR sensing system; signal-to-noise ratio; spatial resolution; Correlation; Frequency domain analysis; Optical fibers; Scattering; Sensors; Signal to noise ratio; Spatial resolution;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
ISSN :
2156-8464
Print_ISBN :
978-1-4577-0909-8
Type :
conf
DOI :
10.1109/SOPO.2012.6271112
Filename :
6271112
Link To Document :
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