海洋背景下运动目标的天基红外探测场景生成系统  

A space-based infrared detection scene generation system for moving objects with sea background

作　　者：赵云峰[1,2] 李夜金 张寅[3] 饶鹏[1,2] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083 [2]中国科学院红外探测与成像技术重点实验室,上海200083 [3]南京航空航天大学航天学院,江苏南京210016

出　　处：《光学精密工程》2017年第4期1019-1025,共7页Optics and Precision Engineering

基　　金：中科院上海技术物理研究所创新专项(No.CX-59)

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。Revolving around the detection requirements for moving targets such as aircraft and sea sur- face ships under the sea background,a research was conducted in space position and motion character- istics of the target and load, thus a space-based detection scene model was established; then, the sea surface fluctuation was calculated through the Pierson-Moskowitz model to achieve modeling and sim- ulation of sea radiance outside the atmospheric layer; finally, three-dimensional geometrical model of multiple targets was used to realize modeling and simulation for radiation performance of the target. Based on the above-mentioned researches, a space-based infrared detection scene generation system was developed by virtue of the MATLAB platform. The experiment indicates that sea radiance meanproduced from such system is superior to that produced from Modtran in the section of medium-wave infrared spectrum while in the section of long-wave infrared spectrum, it is 3 % lower than that pro- duced from Modtran. This proposed system, which is able to generate continuous radiance images of the moving target under sea background, provides a technical support for the space-based infrared de- tection system.

关 键 词：红外 天基探测 海面 运动目标 场景生成 

分 类 号：TN21[电子电信—物理电子学]