本文選題：開(kāi)爾文尾跡 + 紅外特征　； 參考：《紅外技術(shù)》2017年08期

【摘要】：艦船在水面航行時(shí),由于船體和水面的相互作用,在船后會(huì)形成一條清晰可見(jiàn)的V形的尾跡,即Kelvin尾跡。首先基于海浪譜模型,生成了粗糙海面的幾何構(gòu)型,并結(jié)合Kelvin尾跡模型,完成海面Kelvin尾跡的幾何構(gòu)型。然后,通過(guò)波面發(fā)射率計(jì)算、探測(cè)器視場(chǎng)模型建立及熱像生成3個(gè)步驟,完成海面Kelvin尾跡的紅外圖像仿真。最后,根據(jù)尾跡與周?chē)Ｋg的輻射溫差,建立Kelvin尾跡的探測(cè)模型。研究結(jié)果表明:探測(cè)天頂角越大,Kelvin尾跡與周?chē)Ｋg的發(fā)射率差異越明顯,尾跡的紅外圖像特征越顯著;同時(shí),隨著探測(cè)天頂角的增大,探測(cè)概率逐漸增大。
[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.
【作者單位】： 中國(guó)人民解放軍91336部隊(duì);海軍工程大學(xué)兵器工程系;海軍工程大學(xué)動(dòng)力工程學(xué)院;
【基金】：國(guó)防預(yù)研項(xiàng)目 海軍工程大學(xué)自然科學(xué)基金項(xiàng)目(HGDJJ05009)
【分類(lèi)號(hào)】：TN21;U674.70

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