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28 July 2023 Design of underground multi-mode remote transmission sub system
Wenhao Jin, Zhengguo Yan, Ying Zhang, Jinjiang Li
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Proceedings Volume 12716, Third International Conference on Digital Signal and Computer Communications (DSCC 2023); 1271613 (2023) https://doi.org/10.1117/12.2685621
Event: Third International Conference on Digital Signal and Computer Communications (DSCC 2023), 2023, Xi'an, China
Abstract
Downhole TV plays an important role in oil exploitation, among which it is a key part of downhole TV. At present, most of the downhole TV industry uses armored cable for data transmission, but with the development of technology, it has begun to be equipped with optical fiber in the field working environment, and continuous tubing also began to be equipped with optical fibers. Based on this situation, this paper introduces a system design of photoelectric multi-mode remote transmission. This paper first introduces the principle of data coding and demodulation. After analyzing the characteristics of data transmission, TC-PAM coding modulation mode is adopted, and during the cable transmission, the cable has adaptive technology to improve the decoding accuracy of the decoding terminal during high-speed data transmission in the deep well test channel environment. Then, the working principle and system composition of teletransmission section are introduced, and the design and system design requirements of photoelectric composite cable, the selection of core modules and the design method of temperature and pressure resistance of the system are also given. Finally, the field environment test verifies the stable operation of the system and the feasibility of the design method.
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Wenhao Jin, Zhengguo Yan, Ying Zhang, and Jinjiang Li "Design of underground multi-mode remote transmission sub system", Proc. SPIE 12716, Third International Conference on Digital Signal and Computer Communications (DSCC 2023), 1271613 (28 July 2023); https://doi.org/10.1117/12.2685621
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KEYWORDS
Optical transmission
Data transmission
Design and modelling
Fiber optic communications
Transceivers
Optical communications
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