某航空大视场红外扫描装置采用TDI-CCD探测器、以整机摆扫工作方式扫描成像，由于扫描装置为滚动-俯仰结构的两轴稳定平台，对偏航扰动没有稳定作用，其成像质量易受载机偏航运动的影响。通过运动学分析方法建立扫描装置的视轴运动方程及视轴旋转约束条件，得出不影响成像质量的载机偏航运动范围。在载机实际飞行数据输入条件下进行仿真验证，当载机直线飞行时，其偏航运动不影响成像质量。飞行试验验证表明：摆扫扫描图像清晰，航空大视场扫描装置具有良好的载机偏航运动适应性。

An aviation large field of view(FOV) infrared scanning device employs TDI-CCD detector and performs a complete appliance scanning manner, its imaging quality is influenced by aircraft yawing rotation. The scanning device line of sight(LOS) rotation equation and LOS rotation constraint equation were established through kinematic analysis. Thus the aircraft yawing rotation bound was obtained which allowed a distinct image quality. Simulation was carried out on actual flight data, it shows an excellent image quality when aircraft makes a straight flight. The aircraft yawing rotation influence to large FOV scanning is acceptable.