【摘要】 给出了使雷达俯仰轴保持水平的三轴舰载雷达的天线座的具体结构形式 ,对三轴稳定跟踪的数学关系进行了详细讨论 ,得到了无中间变量的角度旋转关系 .针对三轴轴系既非甲板坐标系又不在大地坐标系中的特点 ,研究了船摇对三轴雷达系统的影响 ,推导出实现船摇不变性的补偿条件 ,提出了简便可行的控制方案 .仿真结果表明 ,此方案能够克服舰船摇摆角度和角速度对目标跟踪的影响 .更多还原

【Abstract】 The structure of a 3_axes ship_borne perpendicular radar antenna base,where the elevation axis is horizontal is presented,the mathematical model used for calculation of 3_axis angles is discussed through analyzing the retation principle and the results are the proved by simulation. Considering the 3_axis coordinate system not included in ship rectangular frame or inertial frame, compensation are deduced thorough studying the effects of ship_swing. How to transfer line velocity and acceleration in the inertial frame to angular velocity and acceleration corresponding each axis is also studied to establish the computer function scheme.A servo control scheme to overcome ship swing and realize accurate tracking of moving_target is designed according to inconsistency of radar base angle and beam angle. The results of computer simulation are proved.更多还原