在舰载平台上的光电跟踪系统，由于船体姿态的变化，其视场会沿视轴转动从而引起跟踪误差。为了解决这一问题，提出了一种基于四元数坐标变换的补偿方法。通过研究视场在各个坐标系下的状态，定量地给出了船体姿态对视场旋转的影响，并确定了视场旋转量与方向，同时，研究了跟踪系统装配误差对视场旋转的影响，为实时消除由船摇引起的视场旋转提供了理论依据。

A kind of tracking error of shipboard electro- optical tracking system is caused by the rotation of vessel. In order to solve this problem, a method using coordinate transformation based on quaternion is proposed. By analyzing the viewing field in each coordinate system, the effect of vessel attitude on the viewing field is deduced. Meanwhile, the effect of the installation misalignment on the viewing field is deduced too. The result provides a theoretical basis for real-time despinning of shipboard electro-optical tracking system.