Title :
The Lowest Sample Frequency of PGC Demodulation Method for Interferential Fiber-Optic Sensor
Author :
Zhang Yabin ; Dou Zheng ; Wang Yong ; Cao Jianian
Author_Institution :
Coll. of Inf. & Commun. Eng., Harbin Eng. Univ., Harbin, China
Abstract :
PGC demodulation method is often used for interferential fiber-optic sensors. We want to use the lowest sample frequency that is effectual during digital processing. We theoretically analyzed the disposal process in detail and found that not all the frequency components of input signal are essential for demodulation. We found the lowest sample frequency and the analytic conclusion is simulated and validated.
Keywords :
demodulation; fibre optic sensors; light interference; PGC demodulation method; frequency components; input signal; interferential fiber optic sensor; lowest sample frequency; Demodulation; Educational institutions; Filters; Frequency; Optical fiber communication; Optical fiber couplers; Optical fiber sensors; Optical noise; Sensor arrays; Signal detection;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504367
