Positioning approach based on Mach-Zehnder fiber sensors and a DSP processor

摘要：

　　A positioning system based on Mach-Zehnder optical fiber interferometer is proposed,which can sense vibration information along the circumference of the fiber sensor and hence be applied to positioning invasions as a safe-guard system in residence communities.A cross-correlation algorithm fulfilled with a DSP processor has been adopted to calculate the time difference of two channels of the Mach-Zehnder optical fiber interferometer.A signal identification algorithm is proposed to decrease the workload of the DSP when no vibration occurs.An experiment with 11.28 kilometers sensing fiber has been carried out,whose results show the Mach-Zehnder positioning system identifies the position of vibration instantaneously and has a 44 meters positioning error within the total sensing distance.

关键词： Mach-Zehnder interferometer cross-correlation positioning DSP

作者: Xiong Wan Tingting Du Zhimin Zhang Huaming Zhang Peng Wang

作者单位: Key Laboratory of Space Active Opto-Electronics Technology,Shanghai Institute of Technical Physics o Key laboratory of Nondestructive Test(Ministry of Education),Nanchang Hangkong University,Nanchang 3

会议类型: 国际会议

会议名称: 2013 International Conference on Optical Instrument and Technology (OIT’2013)(2013年光学仪器与技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2013-11-17（万方平台首次上网日期，不代表论文的发表时间）