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�������պ����ѧѧ�� 2003, Vol. 29 Issue (4) :374-376    DOI:
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Optimal Method of Temperature Demodulation in Distributed��Fiber Temperature Sensor Based on Raman Rejection
Su Guobin, Li Zheng*
Dept. Of Electronic Engineering, Beijing University of Aeronautics and Astronautics

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Abstract�� Raman back-scattering of distributed fiber temperature sensor is very weak, stokes and anti-stokes are colored by noise after O/E convertion and amplifying. This paper presents the optimal method of temperature demodulation in distributed fiber temperature sensor based on Raman rejection, in which stokes and anti-stokes data are colored by gauss noise. An optimal split ratio is obtained which can minimize the error of temperature measurement.
Keywords�� Raman scattering   temperature   signal noise ratio     
Received 2002-06-10;
About author: �չ���(1975-),��,�����,��ʿ��,100083,����.
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�չ���, ���.�ֲ�ʽ���˲���ϵͳ�¶����ݵ���ѽ������[J]  �������պ����ѧѧ��, 2003,V29(4): 374-376
Su Guobin, Li Zheng.Optimal Method of Temperature Demodulation in Distributed��Fiber Temperature Sensor Based on Raman Rejection[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2003,V29(4): 374-376
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2003/V29/I4/374
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