| 基于水面特征波纹的潜艇多波段光电偏振成像探测性仿真研究 |
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| 引用本文： | 吴恒泽,王大成,金伟其,裘溯,薛富铎,杨洁.基于水面特征波纹的潜艇多波段光电偏振成像探测性仿真研究[J].红外与激光工程,2020,49(6):20190547-1-20190547-10. |
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| 作者姓名： | 吴恒泽 王大成 金伟其 裘溯 薛富铎 杨洁 |
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| 作者单位： | 北京理工大学 光电学院 光电成像技术与系统教育部重点实验室，北京 100081 |
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| 摘 要： | 潜艇探测技术是海疆国防急需的关键技术，潜艇的“直接”和“间接”成像探测往往都涉及到水面波纹的检测问题。基于偏振成像的探测方法能有效地探测水面的三维波纹面形，其中对水面偏振特性的检测与计算是面形重建的重要一环。建立了水面光电偏振模型，对不同气象条件、水温下昼夜可见光与红外波段水面偏振特性进行了仿真分析，结果显示水面可见光和短波红外波段偏振主要是s偏振，中波/长波红外波段偏振是p偏振；随着入射角的增大，偏振度先增大后减小，且水面红外偏振度随着温度的升高而增大。搭建了基于Stokes矢量的偏振成像检测系统，对可见光波段、中波红外和长波红外波段的水面偏振度进行了实验测量，仿真结果与测量结果基本一致，证明了光电偏振探测模型的有效性。分析了常见波段偏振成像探测的特点，可为水面偏振特性的分析及计算提供理论仿真和实验方法。
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| 关 键 词： | 偏振探测 潜艇探测 水面偏振模型 仿真计算 |
| 收稿时间： | 2020-02-08 |
Multiband submarine photoelectric polarization imaging detection simulation study based on water surface characteristics ripple |
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| Affiliation: | MOE Key Laboratory of Optoelectronic Imaging Technology and System, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Submarine detection is a key technology of coastline defense, the direct and indirect imaging to detect submarines both involves solving the problem of detecting the water surface ripple. 3D surface measurement method based on polarization detection can effectively detect the water corrugated surface, in which the detection and calculation of surface polarization characteristics is an important part of surface reconstruction. The model of water surface polarization was established. Visible and infrared waveband of the water polarization characteristic under different water temperature, different meteorological conditions were simulated and analyzed. The results show that the surface polarization is s polarization in the visible waveband and p polarization in the middle and long infrared waveband, degree of polarization first increases with the increase of incident angle and then decreases, moreover the degree of water surface polarization increases with the rising of temperature. The degree of water surface polarization in visible, middle infrared and long infrared waveband was measured by polarization measurement system based on Stokes vector. The results of the simulation were consistent with the measured results, which proved the accuracy of the polarization model used. The characteristics of polarization imaging detection in common wavebands were analyzed, which can provide theoretical simulation and experimental methods for the analysis and calculation of polarization characteristics of water surface. |
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