| 光谱学与光谱分析 |
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| Study on the Distinguishment of Camouflage Paints Based on Depolarization Characteristics |
| XU Jiang1, QIAN Wei-xian1*, LU Dong-ming1, ZHOU Xiao-jun1, ZHANG Hai-yue1, LU Ying-cheng2 |
1. Department of 404, School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
2. International Institute for Earth System Science, Nanjing University, Nanjing 210093, China |
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Abstract As an important part in the modern warfare, camouflage technology plays a critical role in the battlefield, and the results of detection of camouflage target directly affect the results of war. However, there is little paper to detect camouflage paint by depolarization characteristics, so it is of great significance to use the depolarization technology to study the distinguishment of camouflage paints. To address this issue, we studied the mechanism of the scattering of electromagnetic wave, and analysed the relationship between the characteristics of depolarization and mechanism of scattering. Jones Matrix and Mueller Matrix were used to set up the physical model, and the Mueller-Jones Matrix was decomposed with the characteristics of polarization, then the depolarization coefficients(ωd) of the surfaces of the samples was acquired. In this experiment, we measured soil and three kinds of camouflage yellow paints in seven different incident angles to analyze the characteristics of depolazation of the soil and three kinds of camouflage yellow paints’ surfaces. Finally, we applied the theory of Fresnel formulas to verify the theoretical model. The results showed that: the depolarization coefficients of the samples’ surfaces were related to the scattering, and with the increase of the incident angles, the depolarization coefficients were decline. But in the whole measurement process, the depolarization coefficients of the soil were far above the camouflage paints’. Research indicated that: this article was the first paper which used the depolarization coefficients as an important parameter to identify the camouflage targets, and could identify the camouflage yellow paints in the soil-background accurately and effectively. The processes of the experiments were simpler, and the time was shorter. In modern battlefield, it could identify the camouflage targets quickly and easily, and furnish the precious time for the victory of the war. Therefore, the depolarization technology had a great application value, and the paper had very important significance on the development of camouflage recognition technology.
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Received: 2015-09-01
Accepted: 2016-01-17
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Corresponding Authors:
QIAN Wei-xian
E-mail: developer_plus@163.com
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