天基预警卫星系统中,低轨预警卫星具有对中段弹道导弹目标进行精确的跟踪和监视的能力。参照美国"空间跟踪与监视系统"(STSS, Space Tracking and Surveillance System)的基本功能和部署,采用Agent建模仿真方法建立了低轨预...天基预警卫星系统中,低轨预警卫星具有对中段弹道导弹目标进行精确的跟踪和监视的能力。参照美国"空间跟踪与监视系统"(STSS, Space Tracking and Surveillance System)的基本功能和部署,采用Agent建模仿真方法建立了低轨预警卫星系统模型,从覆盖性角度分析了可能的卫星星座构型,并对弹道导弹目标的探测能力进行了仿真分析。仿真结果表明STSS星座能有效探测一定数量目标,但探测能力受光照影响严重。展开更多
For ballistic mid-course targets,in addition to constant orbital motion,the target or any structure on the target undergoes micro-motion dynamics,such as spin,precession and tumbling.The micro-motion characteristics o...For ballistic mid-course targets,in addition to constant orbital motion,the target or any structure on the target undergoes micro-motion dynamics,such as spin,precession and tumbling.The micro-motion characteristics of the ballistic mid-course targets were discussed.The target motion model and inverse synthetic aperture radar(ISAR) imaging model for this kind of targets were built.Then,the influence of micro-motion on ISAR imaging based on the established imaging model was presented.The computer simulation to get mid-course target echoes from static darkroom electromagnetic scattering data based on the established target motion model was realized.The imaging results of computer simulation show the validity of ISAR imaging analysis for micro-motion targets.展开更多
文摘天基预警卫星系统中,低轨预警卫星具有对中段弹道导弹目标进行精确的跟踪和监视的能力。参照美国"空间跟踪与监视系统"(STSS, Space Tracking and Surveillance System)的基本功能和部署,采用Agent建模仿真方法建立了低轨预警卫星系统模型,从覆盖性角度分析了可能的卫星星座构型,并对弹道导弹目标的探测能力进行了仿真分析。仿真结果表明STSS星座能有效探测一定数量目标,但探测能力受光照影响严重。
基金Project(61360020102) supported by the National Basic Research Development Program of China
文摘For ballistic mid-course targets,in addition to constant orbital motion,the target or any structure on the target undergoes micro-motion dynamics,such as spin,precession and tumbling.The micro-motion characteristics of the ballistic mid-course targets were discussed.The target motion model and inverse synthetic aperture radar(ISAR) imaging model for this kind of targets were built.Then,the influence of micro-motion on ISAR imaging based on the established imaging model was presented.The computer simulation to get mid-course target echoes from static darkroom electromagnetic scattering data based on the established target motion model was realized.The imaging results of computer simulation show the validity of ISAR imaging analysis for micro-motion targets.
