本文選題：紅外　切入點：天基探測　出處：《光學(xué)精密工程》2017年04期

【摘要】：圍繞海洋背景下飛機(jī)和海面艦船等運動目標(biāo)的探測需求,本文研究了目標(biāo)和載荷在多個坐標(biāo)系下的空間位置與運動特性,建立了天基探測場景的幾何模型;通過Pierson-Moskowitz海洋譜模型計算海面起伏,實現(xiàn)大氣層外海面輻射亮度的建模仿真;利用多種目標(biāo)的三維幾何模型,實現(xiàn)目標(biāo)輻射特性的建模仿真。在上述研究的基礎(chǔ)上,利用MATLAB平臺,開發(fā)了一套海洋背景下多種運動目標(biāo)的天基紅外探測場景生成系統(tǒng)。結(jié)果表明:該系統(tǒng)生成的海洋輻射亮度均值在中波紅外譜段優(yōu)于Modtran的生成結(jié)果,在長波紅外譜段與Modtran的生成結(jié)果之差小于3%。該系統(tǒng)可生成連續(xù)的海面背景下運動目標(biāo)的輻射亮度圖像,為開發(fā)天基紅外探測系統(tǒng)提供技術(shù)支撐。
[Abstract]:Focusing on the detection requirements of moving targets such as aircraft and sea surface ships in the ocean background, the spatial position and motion characteristics of targets and loads in multiple coordinate systems are studied, and the geometric model of space-based detection scene is established.The Pierson-Moskowitz ocean spectral model is used to calculate the sea surface fluctuation, to realize the modeling and simulation of the radiation brightness of the sea surface outside the atmosphere, and to realize the modeling and simulation of the radiation characteristics of the target by using the three-dimensional geometric model of various targets.On the basis of the above research, a space-based infrared detection scene generation system for various moving targets in ocean background is developed using MATLAB platform.The results show that the radiance mean generated by the system is superior to that of Modtran in the mid-wave infrared spectrum, and the difference between the long-wave infrared spectrum and the Modtran is less than 3.The system can generate radiance images of moving targets under continuous sea background and provide technical support for the development of space-based infrared detection system.
【作者單位】： 中國科學(xué)院上海技術(shù)物理研究所;中國科學(xué)院紅外探測與成像技術(shù)重點實驗室;南京航空航天大學(xué)航天學(xué)院;
【基金】：中科院上海技術(shù)物理研究所創(chuàng)新專項(No.CX-59)
【分類號】：TN215

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