高动态目标飞行速度快，红外辐射强，红外探测是对其预警的主要手段之一，结合浮空平台，能取得更好的预警效果。分析了浮空红外探测系统对高动态目标的预警优势；考虑了气象、大气特性、地球曲率、高度等因素，给出了红外传输的大气透过率计算模型；建立了红外探测系统的预警距离模型；通过仿真，分析了不同天气下浮空红外探测系统对高动态目标的预警距离，验证了所建模型的有效性，得出了相关性能分析结论。结合结论，给出了浮空红外探测系统的部署及应用建议。

High-speed vehicle has high speed and infrared radiation, for which Infrared surveillance is one of the main warning ways. The better warning effect will be got when float-plane is used. The floating infrared detection system’s warning advantage to high-speed vehicle is analyzed. Based on integrative considering on earth curvature, altitude, weather condition and atmosphere characteristic, the model of infrared atmosphere transmittance of is built. The warning range model of infrared detection system is given. Through a simulation analysis on warning ability of floating infrared detection system to high-speed vehicle under different weather, the validity of model built above is verified, and some conclusion on its capability is got. Combined with this conclusion, some advices on deployment and application of floating infrared detection system are given.