为解决某三轴可旋转光电侦查平台上光束旋转的姿态计算问题,分别利用了四元数算法和坐标变换算法对该问题算法进行了推算.经过仿真验证,这两种算法都能够得到正确结果.相比较而言,坐标变换算法形式简单,便于理解和实现.但是,坐标变换计算过程中大量使用的三角函数计算,计算量大,实时性差;四元数算法使用的三角函数计算很少,更易于工程应用.

When some three-axis electro-optical reconnaissance platform works,it needs using light beam to circumrotate on platform surface.In order to calculate the attitude of the light axis during platform working,the quaternion algorithm and coordinate transformation algorithm were adopted to solve this problem.Simulation results show that the two methods can both get better effect;however,the coordinate transformation algorithm has enormous computation and bad real time feature for using lots of trigonometric functions,while the quaternion algorithm has few trigonometric functions which is more easy for practice applications.