Sensitivity Analysis of Underwater Sound Field with Laser Remote Sensing by Direct Detection

XIE Chen; CHEN Ming-song; ZHOU Tian-hua

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Sensitivity Analysis of Underwater Sound Field with Laser Remote Sensing by Direct Detection

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- Sensitivity Analysis of Underwater Sound Field with Laser Remote Sensing by Direct Detection
- Chinese Journal of Luminescence Vol. 30, Issue 2, Pages: 261-266(2009)
- 作者机构：
  
  1. 桂林电子科技大学信息与通信学院,广西桂林,541004
  2. 中国科学院上海光学精密机械研究所先进激光技术与应用系统实验室上海,201800
- 作者简介：
- 基金信息：
- DOI：
  CLC： O422.2
- Received：25 August 2008，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2009，
  
  Published：30 April 2009
- 稿件说明：
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XIE Chen, CHEN Ming-song, ZHOU Tian-hua. Sensitivity Analysis of Underwater Sound Field with Laser Remote Sensing by Direct Detection[J]. Chinese journal of luminescence, 2009, 30(2): 261-266.
DOI：

XIE Chen, CHEN Ming-song, ZHOU Tian-hua. Sensitivity Analysis of Underwater Sound Field with Laser Remote Sensing by Direct Detection[J]. Chinese journal of luminescence, 2009, 30(2): 261-266. DOI：

摘要

激光声遥感探测水下声信号技术

是比以往任何一种水声探测技术都先进的技术

但探测系统的灵敏度一直未曾分析。得出了在直接光强检测方式下表面微波的最小可探测幅度值

并且分析了最小可探测幅度值分别和探测高度、接收孔径的关系。在直接光强检测方式下

针对水下声场形成的表面微扰现象

通过建立探测系统的一维物理模型进行理论推算。直接光强检测方式下表面微波的最小可探测幅度值为0.424 4 mm

当表面微波幅度超过该值时

探测系统灵敏度完全满足对水下声场的实时监测要求。

Abstract

Laser remote sensing of the underwater sound field is more advanced detection technology for underwater object search

however

the sensitivity of the detection system had not been analyzed. This article analyzed three laser remote sensing methods for underwater sound field

and then studied the surface microwave formed from underwater sound field. It was obtained through the theoretical calculation that the minimum detection limit of amplitude was 0.424 4 mm for surface microwave. By analyzing the relationship between the minimum detection limit of amplitude

the height of sender and the aperture of receiver

it was understood for the theoretical basis of influence factors for the detection of underwater sound field

also provided for the basic idea for improving sensitivity.

关键词

Keywords

references

. Zhou Tianhua, He Ning. The laser remote sensing of underwater acoustic signal .Guilin: Proceedings of ISAPE, 2006, 617-619.

. Lee M S, Bourgeois B S, Hsieh S T, et al. A laser sensing scheme for detection of underwater acoustic signals . USA: South Knoxville, Conference Proceedings of IEEE, 1988, 253-257.

. Cui Guihua, Li Rongfu, Tian Zuoxi, et al. A laser remote sensing study for detection of under water acoustic signals [J]. Ship Science and Technology (舰船科学技术), 2002, 24 (1):46-50 (in Chinese).

. Hu Shanjiang, He Yan, Zang Huaguo, et al. A new airborne laser bathymetry system and survey result[J]. Chin. J. Lasers (中国激光), 2006, 33 (9):1163-1167 (in Chinese).

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