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针对反射镜视轴稳定平台特点,从基本的反射镜视轴运动学关系出发,采用基于虚拟整体稳定平台的视轴重建方法对反射镜稳定平台视轴惯性角速度进行数学重建,同时分析了反射镜转角和视场范围的关系。为克服反射镜固有的2∶1特性,对比了传统的机械稳定控制方法,和重建光轴的半捷联稳定方法。仿真结果表明:两种方法都可以稳定视轴,但重建视轴的半捷联控制方法符合稳定平台小型化的发展趋势。
Aiming at the characteristics of the mirror boresight stabilization platform, based on the basic mirror boresight kinematics relationship, the visual axis reconstruction method based on the virtual integral stable platform is used to mathematically reconstruct the boresight inertia angular velocity of the mirror steady platform. At the same time, Relationship between corner and field of view. In order to overcome the inherent 2: 1 characteristic of the mirror, the traditional method of mechanical stability control and the method of semi-strapdown stabilization of reconstructed optical axis are compared. The simulation results show that both methods can stabilize the visual axis, but the semi-strapdown control method of reconstructing the visual axis conforms to the trend of miniaturization of the stable platform.