| 激光—声通信研究 |
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| 引用本文： | 贾宁,贺岩,马力,郭圣明,郭中源,陈庚. 激光—声通信研究[J]. 应用声学, 2009, 28(4): 259-267 |
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| 作者姓名： | 贾宁 贺岩 马力 郭圣明 郭中源 陈庚 |
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| 作者单位： | 1. 中国科学院声学研究所,北京,100190
2. 中国科学院上海光学精密机械研究所,上海,201800 |
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| 摘 要： | 通过对多普勒相干检测方法的研究,开发了一套激光测振系统,可以通过对水面质点振动速度进行非浸入式的探测,进而获取水下声信息。本文对水面平静和波动两种情况下的激光声通信进行了研究,通过水池实验证明了探测和通信原理的正确性和可行性,给出了系统最小可探测声压级,对波动水面下的数据丢失情况进行了分析,并提出了可能的解决途径。
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| 关 键 词： | 多普勒相干检测 激光测振 激光声通信 |
Acousto-optic communication |
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| JIA Ning,HE Yan,MA Li,GUO Sheng-Ming,GUO Zhong-Yuan and CHENG Geng. Acousto-optic communication[J]. Applied Acoustics(China), 2009, 28(4): 259-267 |
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| Authors: | JIA Ning HE Yan MA Li GUO Sheng-Ming GUO Zhong-Yuan CHENG Geng |
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| Affiliation: | JIA Ning1 HE Yan2 MA Li1 GUO Sheng-Ming1 GUO Zhong-Yuan1 CHENG Geng1 (1 Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190) (2 Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800) |
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| Abstract: | A laser vibration measurement system based on Doppler coherent detection was developed.This system can be used to measure the vibration velocity of the water surface particle in non-immersed way for picking up underwater information.In this paper, acousto-optic communications under both static and dynamic water surface conditions were conducted in a water pool.The result of study verified the principle of signal detection and indicated that communication is feasible,and the minimal acoustic pressure which can be detected by the system is established.In this paper,the problem of signal dropouts in dynamic water surface conditions is analyzed and the way to solve it is discussed. |
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| Keywords: | Doppler coherent detection Laservibration measurement Acousto-optic communication |
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