舰载光电跟踪设备视轴稳定分析

舰船摇摆影响舰载光电跟踪设备的精度，视轴稳定是提高武器精度的关键，故采用坐标变换技术，在跟踪设备的方位和俯仰轴上对船摇状态角进行实时补偿，视轴稳定控制主要是船摇前馈控制，速率陀螺反馈控制，复合控制，通过数学推导，由舰船摆引起的视轴附加角速度公式，设计了一种能够较好解决船摇隔离问题的伺服控制系统。该系统用测速机构成闭环，作速度反馈，编码器作位置反馈，速率陀螺测量并前馈舰船摇速度信号，给出了前馈回路设计及用SIMULINK进行的仿真框图，该系统精度高，隔离效果好。

Stabilization Analysis of LOS for Carrier-Based Electro-Optical Tracking Equipment

Tracking precision of electro-optical tracking equipment is influenced by ship-swaying, The LOS (line of sight) stabilization is the key of improving the precision of weapon. The coordinate transformation technology is adopted to compensate real time attitude angles of the swinging ship on the azimuth and pitching axis of tracking equipment in order to stabilize LOS and improve precision. The methods of stabilization control of LOS mainly include ship-swaying feed-forward control, rate gyro feedback control and compounding control. The expressions of LOS add-angle velocity begotten by ship-swaying is introduced through math deduction. The servo control system that can insulate ship-swaying interference was designed. In this system, the closed loop is composed of velocity measurement machine used as velocity feedback and coder used as position feedback, the feed-forward signal of ship swaying is measured by rate gyro. The design of feed-forward loop and the simulation diagram of SIMULINK was given. The system has higher precision of is, better isolating effect.