| 直接光强检测方式下激光遥测表面微波的极限分析 |
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| 引用本文： | 谢晨,陈名松,周田华,高新朝.直接光强检测方式下激光遥测表面微波的极限分析[J].红外,2009,30(2):10-14. |
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| 作者姓名： | 谢晨 陈名松 周田华 高新朝 |
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| 作者单位： | 1. 桂林电子科技大学信息与通信学院,广西,桂林,541004
2. 桂林电子科技大学信息与通信学院,广西,桂林,541004;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 |
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| 基金项目： | 广西自治区科学基金，广西区青年基金，广西研究生教育创新计划 |
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| 摘 要： | 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了理论推算.结论为:直接光强检测方式下表面微波的最小可探测幅度值为0.4244mm.当表面微波幅度超过该值时,探测系统的灵敏度完全满足对水下声场的实时监测要求.
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| 关 键 词： | 光学测量 最小可探测幅度值 理论推算 直接光强检测 |
| 收稿时间： | 2008/10/8 |
Limit Analysis of Microwave at Water Surface Sensed Remotely by Direct Laser Intensity Detection |
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| XIE Chen,CHEN Ming-song,ZHOU Tian-hua,GAO Xin-chao.Limit Analysis of Microwave at Water Surface Sensed Remotely by Direct Laser Intensity Detection[J].Infrared,2009,30(2):10-14. |
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| Authors: | XIE Chen CHEN Ming-song ZHOU Tian-hua GAO Xin-chao |
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| Affiliation: | 1;2;1. School of Information & Communication;Guilin University of Electronic Technology;Guilin 541004;China;2. Advanced Laser Technique & Applied System Laboratory;Shanghai Institute of Optics and Fine Mechanics;Chinese Academy of Sciences;Shanghai 201800;China |
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| Abstract: | In this paper,the minimum detectable amplitude of the microwave at water surface sensed by using a direct laser intensity detection method is derived and the relationships of this minimum detectable amplitude with detection height and receiving aperture are analyzed.According to the perturbation phenomenon formed by the underwater acoustic field at water surface in the direct laser intensity detection method,theoretical calculation is carried out by establishing the one-dimensional physical model of the det... |
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| Keywords: | optical measurement minimum detection limit amplitude estimation direct detection |
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