基于STK的美GEO轨道预警卫星作战能力分析
Analysis of the Operational Capabilities of America’s GEO Early Warning Satellites Based on STK

天基红外预警卫星是实现战略预警的核心装备，能够实现全球弹道类目标发射的早期预警。当前美国已经建成了规模庞大、体系完备的GEO轨道预警卫星体系，其主要包括六颗SBIRS-GEO预警卫星和一颗宽视场红外预警卫星WFOV，对我国战略安全空间构成了严峻威胁。为分析美预警卫星对我威胁情况，系统分析了美GEO轨道预警卫星最新发展现状，并利用卫星仿真工具包(STK)对其作战能力进行了仿真分析。仿真结果表明，美GEO轨道预警卫星对我国境内目标实现了全域二重覆盖，能够全天候对我弹道导弹类目标发射进行预警监测，研究成果能够为研究美天基预警系统作战能力提供支撑，具有一定的参考价值。
Space-based infrared early warning satellites are the core capabilities for the strategic early warning, capable of detecting launch activities of ballistic targets all over the world. The United States has built a large-scale and sophisticated GEO early warning satellite architecture, including 6 GEO satellites of Space-Based Infrared System (SBIRS), and a Wide Field of View satellite, seriously threatening China’s strategic security. This study analyzes the latest development of America’s GEO early warning satellites, and its operational capability based on Satellite Tool Kit, or STK, to figure out the threats against China. On the basis of the simulation results, the satellites can cover the whole China, tracking and monitoring our ballistic missile targets in all weather conditions. The analysis presented in this study will convey valuable information for better understanding the operational capability of the space-based early warning architecture.