| 引用本文: | 张朝阳,程海峰,陈朝辉,等.自然背景中伪装网的散射偏振度与成像研究.[J].国防科技大学学报,2008,30(5):34-37.[点击复制] |
| ZHANG Chaoyang,CHENG Haifeng,CHEN Zhaohui,et al.A Study of Polarization Degree and Imaging of Camouflage Net in Natural Background[J].Journal of National University of Defense Technology,2008,30(5):34-37[点击复制] |
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| 自然背景中伪装网的散射偏振度与成像研究 |
| 张朝阳, 程海峰, 陈朝辉, 郑文伟, 曹义 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 偏振遥感以目标散射光或辐射光的偏振特性作为识别信息，具有常规强度遥感所不具备的优点。为了研究伪装网的偏振伪装效果，在不同条件下对伪装网的散射偏振度和成像特征进行了测试。结果表明，伪装网的表面偏振散射特征受光照条件、探测条件和材料本身特性的影响，其散射光的偏振度与入射角度成正比，与表面反射率成反比。相对于草地背景，伪装网的偏振度较大，可以在偏振度图像中被清晰地识别出来，能够有效对抗多光谱遥感等传统侦察手段的伪装网在偏振遥感侦察下失去了伪装效果。偏振遥感对伪装技术提出了新的挑战。 |
| 关键词: 偏振度 散射 偏振遥感 伪装网 |
| DOI： |
| 投稿日期：2008-05-13 |
| 基金项目:国家部委基金资助项目 |
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| A Study of Polarization Degree and Imaging of Camouflage Net in Natural Background |
| ZHANG Chaoyang, CHENG Haifeng, CHEN Zhaohui, ZHENG Wenwei, Cao Yi |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Polarimetric characteristic of scattering light was used in the polarization remote sensing to identify targets. It is a new method of detection with several advantages compared with traditional radiant intensity remote sensing. To study the effect of polarization stealth, polarimetric characteristics of camouflage net and images of polarization degree were measured under different conditions. The results indicate that polarimetric characteristics of camouflage net were influenced by several factors, such as conditions of illumination, detection and characteristics of materials. The variation of polarization degree was represented as reverse ratio to the reflectance of surface and direct ratio to the incidence angle. Compared with that of meadow, the polarization degree of camouflage net was much higher and could be identified clearly. Camouflage net meeting the request of multi-spectral remote sensing has little effect when it comes to polarization remote sensing. Thus, polarization remote sensing brings new challenges to camouflage technique. |
| Keywords: polarization degree scattering polarization remote sensing camouflage net |
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