偏振场景目标探测的建模与仿真

发布时间：2018-01-14 01:35

本文关键词：偏振场景目标探测的建模与仿真　出处：《光学精密工程》2017年08期 　论文类型：期刊论文

【摘要】：针对用光学遥感技术探测复杂场景下的目标时,真实环境下的目标、背景反射以及大气气溶胶辐射之间具有相当大的互干扰性,本文研究了偏振场景目标的建模与仿真技术。介绍了偏振场景仿真的光学理论与偏振模型基础,对Priest-Germer模型进行了数值仿真与分析。基于Priest-Germer模型,开发了偏振视景目标探测仿真软件,给出仿真软件的设计思想和软件框架。介绍了偏振双向分布反射函数模型,给出其偏振形式的Stokes表达式并进行数值仿真分析。给出了两种目标模型分别赋予两种不同表面材质时在440nm和600nm波长辐照条件下的4组偏振仿真实验及偏振图像的灰度直方图,并进行比较和分析,结果表明:基于Priest-Germer模型的偏振仿真软件对目标、辐照波长、材质具有较高的敏感性,能够提供较好的分辨和识别能力。
[Abstract]:When using optical remote sensing technology to detect the target in complex scene, there is considerable mutual interference between the target in real environment, background reflection and atmospheric aerosol radiation. In this paper, the modeling and simulation technology of polarization scene target is studied, and the optical theory and polarization model foundation of polarization scene simulation are introduced. The Priest-Germer model is numerically simulated and analyzed. Based on the Priest-Germer model, the simulation software of polarization scene target detection is developed. The design idea and software framework of the simulation software are given, and the polarization bidirectional distributed reflection function model is introduced. The Stokes expression of its polarization form is given and the numerical simulation analysis is carried out. Two target models with two different surface materials are given, and the four kinds of target models are given under the irradiation conditions of 440 nm and 600 nm wavelength, respectively. Group polarization simulation experiment and gray histogram of polarization image. The results show that the polarization simulation software based on Priest-Germer model is sensitive to target, irradiation wavelength and material. Be able to provide better resolution and recognition ability.
【作者单位】：中国科学院长春光学精密机械与物理研究所;中国科学院大学;
【基金】：国家自然科学基金青年基金资助项目(No.61308085)
【分类号】：O436.3;TP391.9
【正文快照】： 2.中国科学院大学,北京100049)1引言偏振成像是一种新兴的探测识别技术[1],其利用了目标散射辐射的偏振基本属性信息(偏振度、偏振角等),即使两个物体探测点之间没有温差也能够通过偏振对比度成像,因而能够反映出传统红外探测技术所不能探测到的目标景物信息。偏振遥感探测应

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