This paper analyses three sources of non-liner errors in Head-up Displ ay,which are the plane screen of CRT,optical system and coordination of two fa ctors.The common way of correction is given too.

• 分析了导致平视显示器产生非线性误差的三种原因:即飞机上采用的CRT平面显示屏、光学系统以及两者搭配产生的误差,并提供了常用的校正补偿方法。