Abstract
The accurate positioning of intruding events remains a vital task in distributed oil and gas pipeline safety precaution system. Time delay, which is used for determining the intruding location is generally obtained through cross correlation. However, random evolution of polarization states cause optical signals uncorrelated and lead to great positioning deviation. In this paper, the model of the light path is established based on Jones matrix and the method of controlling correlation coefficient is discussed via adjusting the polarization state of the light. A control algorithm is proposed based on Simulated Annealing. The correlation coefficient is the feedback parameter as well as objective value. It is demonstrated that the algorithm can stabilize the correlation coefficient and eliminate the estimation error significantly.
How to Cite:
Li, J. ., Feng, H. ., Zhang, Y. . & Sha, Z. ., (2019) “Simulated annealing based polarization optimization for dual Mach-Zehnder interferometer fiber vibration sensor”, Review of Progress in Quantitative Nondestructive Evaluation .
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