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| 数字化相位载波解调方案在光纤水听器系统中的实现 | |
| 引用本文： | 倪明,熊水东,孟洲,张仁和.数字化相位载波解调方案在光纤水听器系统中的实现[J].应用声学,2004,23(6):5-11. |
| 作者姓名： | 倪明 熊水东 孟洲 张仁和 |
| 作者单位： | 1. 中国科学院声学研究所声场声信息国家重点实验室,北京,100080;国防科技大学光电科学与工程学院,长沙,410073 2. 国防科技大学光电科学与工程学院,长沙,410073 3. 中国科学院声学研究所声场声信息国家重点实验室,北京,100080 |
| 基金项目： | 国家自然科学基金资助项目(10234050) |
| 摘 要： | 本文分析了干涉型光纤水听器内调制相位载波(PGC)调制解调的原理，提出了PGC调制解调的全数字化方案，通过计算机仿真，并在光纤水听器系统中实现了PGC的数字化解调。实验室光纤水听器与标准水听器对比测试以及实际海况试验都证明，数字化PGC解调技术在光纤水听器系统的实现对水声信号的检测是有效的。 |
| 关 键 词： | 调制解调 相位载波 解调技术 干涉型光纤水听器 数字化 对比测试 计算机仿真 PGC 系统 方案 |
Realization of digital demodulation of the phase generated-carrier technique in fiber optic hydrophone systems |
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| NI Ming,XIONG Sui-Dong,MENG Zhou and ZHANG Ren-He.Realization of digital demodulation of the phase generated-carrier technique in fiber optic hydrophone systems[J].Applied Acoustics,2004,23(6):5-11. | |
| Authors: | NI Ming XIONG Sui-Dong MENG Zhou and ZHANG Ren-He |
| Institution: | State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080;College of Optoelectronic Science and Engineering, National University of Defense Technology,Changsha 410073;College of Optoelectronic Science and Engineering, National University of Defense Technology,Changsha 410073;State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080 |
| Abstract: | In this paper we analyse the principle of phase-generated carrier (PGC) modulation of interferometric fiber optic hydrophone, then put up a scheme to realize PGC demodulation by digital scheme, perfect it by lots of simulations on computer. We validate its effectiveness by comparing a signal from a fiber optic hydrophone with one from a standard hydrophone, and by a long-distance seatest using an all optical fiber optic hydrophone array. |
| Keywords: | ber optic hydrophone Phase-generated carrier (PGC) Signal detect |
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