海面舰船开尔文尾迹红外特征与探测的模拟

发布时间：2018-05-17 00:38

本文选题：开尔文尾迹 + 红外特征　；参考：《红外技术》2017年08期

【摘要】：舰船在水面航行时,由于船体和水面的相互作用,在船后会形成一条清晰可见的V形的尾迹,即Kelvin尾迹。首先基于海浪谱模型,生成了粗糙海面的几何构型,并结合Kelvin尾迹模型,完成海面Kelvin尾迹的几何构型。然后,通过波面发射率计算、探测器视场模型建立及热像生成3个步骤,完成海面Kelvin尾迹的红外图像仿真。最后,根据尾迹与周围海水间的辐射温差,建立Kelvin尾迹的探测模型。研究结果表明:探测天顶角越大,Kelvin尾迹与周围海水间的发射率差异越明显,尾迹的红外图像特征越显著;同时,随着探测天顶角的增大,探测概率逐渐增大。
[Abstract]:When a ship is sailing on the surface of the water, because of the interaction between the hull and the water surface, there will be a clearly visible V-shaped wake behind the ship, that is, the Kelvin wake. Firstly, based on the wave spectrum model, the geometric configuration of rough sea surface is generated, and the geometric configuration of Kelvin wake is completed by combining with Kelvin wake model. Then, the infrared image simulation of the sea surface Kelvin wake is completed by calculating the emissivity of the wave surface, establishing the field of view model of the detector and generating the thermal image. Finally, according to the radiative temperature difference between the wake and the surrounding seawater, the detection model of Kelvin wake is established. The results show that the larger the zenith angle is, the more obvious the emissivity difference between Kelvin wakes and the surrounding seawater is, the more obvious the infrared image characteristics of the wake are, and the more the detection probability increases with the increase of the detecting zenith angle.
【作者单位】：中国人民解放军91336部队;海军工程大学兵器工程系;海军工程大学动力工程学院;
【基金】：国防预研项目海军工程大学自然科学基金项目(HGDJJ05009)
【分类号】：TN21;U674.70

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