光纤水听器关键技术研究
文献类型：学位论文
| 作者 | 倪明 |
| 学位类别 | 博士 |
| 答辩日期 | 2003 |
| 授予单位 | 中国科学院声学研究所 |
| 授予地点 | 中国科学院声学研究所 |
| 关键词 | 光纤水听器 水听器 光纤传感器 |
| 其他题名 | Investigation of the Key Technologies of Fiber Optic Hydrophone |
| 中文摘要 | 光纤水听器自70年代末提出以来，由于它具有的军事价值和巨大的民用价值，加上近20年由于光纤通信迅速发展引起的光纤领域的技术革新使大量技术走向成熟，光纤水听器获得了迅速的发展，目前己由基础研究转向应用研究，部分领域已经产品化。本文针对应用开展光纤水听器的关键技术研究。本文回顾与总结了当前国内外光纤水听器发展水平与现状，介绍了光纤水听器的基础原理以及探头构成技术，分析了比较成功的十几种典型探头设计方案。光纤水听器的抗偏振衰落技术始终是阻碍光纤水听器走向实用化的关键技术之一，本文系统对抗偏振衰落的典型方案进行了理论分析。如何采用合适的抗相位衰落技术，以检测光纤水听器拾取的声信号是本文的主要研究内容。光纤水听器的阵列复用技术是光纤水听器走向应用的又一关键技术，本文系统阐述了光纤水听器多路复用的主要技术方案。如何评价一个光纤水听器系统，如何定义及测量光纤水听器的主要参数指标无疑是光纤水听器走向应用必需解决的问题，本文尝试给出了包括光纤水听器灵敏度在内的主要参数的定义及测量方法。最后，简单介绍了光纤水听器的实验室测试，湖试及海上试验的实验结果。本文主要内容包括：．系统总结并分析了光纤水听器的关键技术．综述了国内外光纤水听器发展的最新动态．介绍了光纤水听器控制工作点获取信号方案并在实际系统中实现．介绍了光纤水听器PGC全数字化解调方案并在实际系统中实现．尝试给出光纤水听器主要参数的定义及测量方法．用实验证实光纤水听器与压电水听器拾取信号具有同等物理意义．简述光纤水听器阵列海上试验及结果 |
| 英文摘要 | Since the first demonstrations of fiber optic hydrophones in the late 1970s, the technology has seen a considerable amount of development. This development has been driven by principally military applications and has been supported by the enormous advances in optical component technology, which have arisen from the requirements of the telecommunications industry. Now the study has turned into application systems from theories, even some productions based-on fiber optic hydrophone have come out in some fields. The key technologies have been investigated in this dissertation for application systems. Firstly, review the development status of fiber optic hydrophone and the theories on which fiber optic hydrophone bases. Then, since the unit technology is the basic of fiber optic hydrophone, this paper describes some important designs and explains their principles, as well as compares and evaluates their merits and disadvantages in according with some key parameters. Next, summarizes and analyseses the important schemes of elimination of the polarization induced fading of hydrophone based-on interferometric fiber optic sensor, do as the interrogation techniques and multiplexing techniques. To define some key parameters, such as phase insensitivity of fiber optic hydrophone, and how to measure them become a part of this paper. At last, the results of all kinds of tests, such as in a lab, in a lake and in a sea, are introduced. The mostly points of this dissertation are as follows: Review and analyses the key techniques of fiber optic hydrophone Summarize the newest development in the world Put out and realize control work point scheme Put out and realize PGC digital demodulation scheme Try to define parameters of fiber optic hydrophone and measure them Test that signal by fiber optic hydrophone is the same as one by customed hydrophone Report seatest of large-scale fiber optic hydrophone array |
| 语种 | 中文 |
| 公开日期 | 2011-05-07 |
| 页码 | 122 |
| 源URL | [http://159.226.59.140/handle/311008/1018]  |
| 专题 | 声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文 |
| 推荐引用方式 GB/T 7714 | 倪明. 光纤水听器关键技术研究[D]. 中国科学院声学研究所. 中国科学院声学研究所. 2003. |
入库方式： OAI收割
来源：声学研究所
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