Twenty-fold Enlargement of QDAS Bandwidth Utilizing Orthogonal Codes on the Same Carrier

Ziwen Deng,Ruobing Xu,Yuyao Wang,Jialin Jiang,Zinan Wang

27th International Conference on Optical Fiber Sensors（2022）

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摘要

With orthogonal codes on the same carrier as the probing signal, the scan-rate of quasi-distributed acoustic sensing system is enlarged by 20 times, with 10 kHz sensing bandwidth on 99.4 km sensing fiber.

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关键词

carrier,twenty-fold

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