海洋背景下运动目标的天基红外探测场景生成系统

发布时间：2018-04-08 08:10

本文选题：红外　切入点：天基探测　出处：《光学精密工程》2017年04期

【摘要】：围绕海洋背景下飞机和海面舰船等运动目标的探测需求,本文研究了目标和载荷在多个坐标系下的空间位置与运动特性,建立了天基探测场景的几何模型;通过Pierson-Moskowitz海洋谱模型计算海面起伏,实现大气层外海面辐射亮度的建模仿真;利用多种目标的三维几何模型,实现目标辐射特性的建模仿真。在上述研究的基础上,利用MATLAB平台,开发了一套海洋背景下多种运动目标的天基红外探测场景生成系统。结果表明:该系统生成的海洋辐射亮度均值在中波红外谱段优于Modtran的生成结果,在长波红外谱段与Modtran的生成结果之差小于3%。该系统可生成连续的海面背景下运动目标的辐射亮度图像,为开发天基红外探测系统提供技术支撑。
[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.
【作者单位】：中国科学院上海技术物理研究所;中国科学院红外探测与成像技术重点实验室;南京航空航天大学航天学院;
【基金】：中科院上海技术物理研究所创新专项(No.CX-59)
【分类号】：TN215

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