{"title":"无延迟线多通道混沌相关光纤环路环下感应","authors":"Xiaohui Chen;Lingzhen Yang;Juanfen Wang;Bowei Zeng;Xianwei Pan;Yisong Li;Xiaomin Fu;Meiling Wang;Yuxin Bai;Jin Qi","doi":"10.1109/TIM.2025.3604148","DOIUrl":null,"url":null,"abstract":"We propose and demonstrate a delay-line-free multi-channel chaotic correlation fiber loop ring down (MCCCFLRD) sensing based on time division multiplexing (TDM). The factors on the number of multiplexing channels are analyzed, such as the coupling ratio of the fiber coupler, the length of the fiber loop cavity, the length of the signal delay line, and the sampling time (ST) of date process system. The feasibility and stability of the demodulation for the multiplexing chaotic signals with delay-line-free are analyzed theoretically. The results show that the proposed chaotic signal demodulation with delay-line-free can reduce the impact of ST of date process system and achieve the maximum multiplexing number of the multi-channels in the fiber loop system. To verify the feasibility of the chaotic signal demodulation with delay-line-free, the four-channel chaotic correlation fiber loop ring down (CCFLRD) sensing is demonstrated experimentally. The peak finding and signal separation algorithm are used to identify the peak of the correlation coefficient of the multiplexing chaotic signals with delay-line-free. The Levenberg–Marquardt algorithm was used to fit the fiber loop ring down (FLRD) curves. The delay-line-free multi-channel FLRD system can improve the sampling accuracy of effective data points and increase the number of multiplexing channels. The signal demodulation of different channels does not interfere with each other in the external environment. The proposed multi-channel chaotic fiber loop sensing system with delay-line-free has the high multiplexing capacity and accuracy.","PeriodicalId":13341,"journal":{"name":"IEEE Transactions on Instrumentation and Measurement","volume":"74 ","pages":"1-13"},"PeriodicalIF":5.9000,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Delay-Line-Free Multi-Channel Chaotic Correlation Fiber Loop Ring Down Sensing\",\"authors\":\"Xiaohui Chen;Lingzhen Yang;Juanfen Wang;Bowei Zeng;Xianwei Pan;Yisong Li;Xiaomin Fu;Meiling Wang;Yuxin Bai;Jin Qi\",\"doi\":\"10.1109/TIM.2025.3604148\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose and demonstrate a delay-line-free multi-channel chaotic correlation fiber loop ring down (MCCCFLRD) sensing based on time division multiplexing (TDM). The factors on the number of multiplexing channels are analyzed, such as the coupling ratio of the fiber coupler, the length of the fiber loop cavity, the length of the signal delay line, and the sampling time (ST) of date process system. The feasibility and stability of the demodulation for the multiplexing chaotic signals with delay-line-free are analyzed theoretically. The results show that the proposed chaotic signal demodulation with delay-line-free can reduce the impact of ST of date process system and achieve the maximum multiplexing number of the multi-channels in the fiber loop system. To verify the feasibility of the chaotic signal demodulation with delay-line-free, the four-channel chaotic correlation fiber loop ring down (CCFLRD) sensing is demonstrated experimentally. The peak finding and signal separation algorithm are used to identify the peak of the correlation coefficient of the multiplexing chaotic signals with delay-line-free. The Levenberg–Marquardt algorithm was used to fit the fiber loop ring down (FLRD) curves. The delay-line-free multi-channel FLRD system can improve the sampling accuracy of effective data points and increase the number of multiplexing channels. The signal demodulation of different channels does not interfere with each other in the external environment. The proposed multi-channel chaotic fiber loop sensing system with delay-line-free has the high multiplexing capacity and accuracy.\",\"PeriodicalId\":13341,\"journal\":{\"name\":\"IEEE Transactions on Instrumentation and Measurement\",\"volume\":\"74 \",\"pages\":\"1-13\"},\"PeriodicalIF\":5.9000,\"publicationDate\":\"2025-08-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Instrumentation and Measurement\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/11145244/\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Instrumentation and Measurement","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/11145244/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Delay-Line-Free Multi-Channel Chaotic Correlation Fiber Loop Ring Down Sensing
We propose and demonstrate a delay-line-free multi-channel chaotic correlation fiber loop ring down (MCCCFLRD) sensing based on time division multiplexing (TDM). The factors on the number of multiplexing channels are analyzed, such as the coupling ratio of the fiber coupler, the length of the fiber loop cavity, the length of the signal delay line, and the sampling time (ST) of date process system. The feasibility and stability of the demodulation for the multiplexing chaotic signals with delay-line-free are analyzed theoretically. The results show that the proposed chaotic signal demodulation with delay-line-free can reduce the impact of ST of date process system and achieve the maximum multiplexing number of the multi-channels in the fiber loop system. To verify the feasibility of the chaotic signal demodulation with delay-line-free, the four-channel chaotic correlation fiber loop ring down (CCFLRD) sensing is demonstrated experimentally. The peak finding and signal separation algorithm are used to identify the peak of the correlation coefficient of the multiplexing chaotic signals with delay-line-free. The Levenberg–Marquardt algorithm was used to fit the fiber loop ring down (FLRD) curves. The delay-line-free multi-channel FLRD system can improve the sampling accuracy of effective data points and increase the number of multiplexing channels. The signal demodulation of different channels does not interfere with each other in the external environment. The proposed multi-channel chaotic fiber loop sensing system with delay-line-free has the high multiplexing capacity and accuracy.
期刊介绍:
Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.