High Stability Fiber-Optics Sensors With an Improved PGC Demodulation Algorithm

被引：41
|
作者：
Zhang, Ailing [1 ]
Zhang, Shuai [1 ]
机构：
[1] Tianjin Univ Technol, Sch Comp & Commun Engn, Tianjin Key Lab Film Elect & Commun Devices, Tianjin 300384, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2016年 / 16卷 / 21期
关键词：
Fiber-optics sensors; phase modulation; PGC; interferometry; LIGHT-INTENSITY DISTURBANCE; PHASE; MODULATION;
D O I：
10.1109/JSEN.2016.2604348
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, an optical fiber interferometric sensor with improved phase generated carrier (PGC) demodulation algorithm is proposed to eliminate the influence of light intensity disturbance. Performance of sensor using proposed algorithm is analyzed and compared with sensor using differential-cross-multiplying (PGC-DCM) algorithm and PGC Arctangent (PGC-Arctan) algorithm, respectively. Experimental results show that distortion, but also harmonic distortion is well suppressed by the improved PGC algorithm. In experiment, the signal-to-noise and distortion ratio of sensor using the proposed algorithm achieve a gain of 16.4 and 10.8 dB over sensor using PGC-DCM and PGC-Arctan algorithm, respectively.
引用
收藏
页码：7681 / 7684
页数：4
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