舰载平面相控阵天线安装倾角的设计方法

利用舰载惯性导航系统提供的姿态信息，对处于静态和动态姿态下的舰载平面相控阵天线的波束指向变换进行了分析，得到了平面相控阵天线的扫描角。在此基础上，以相控阵天线最大扫描角度最小为目标，给出了天线随舰载安装平台处于运动姿态条件时的安装倾角的设计方法。该方法能够在给定的舰船纵摇和横摇范围内，针对相控阵天线需求的空域扫描覆盖范围，实现对任意多面旋转布阵的平面相控阵天线安装倾角的计算。由该方法计算得到的天线安装倾角能够使平面相控阵天线有最小的最大扫描角，从而提高相控阵天线的电气性能。

Design method of array face tilt for shipborne planar phased array antenna

The beam pointing transformation of shipborne planar phased array antenna both in static and movement posture is analyzed by using the information provided by marine inertial navigation system,and the scanning angle of planar phased array antenna is obtained.On this basis,a design method of optimal array face tilt for shipborne planar phased array antenna is presented while the antenna is in the movement posture,which aims at minimizing the maximum scanning angle of the phased array antenna.The array face tilt of arbitrary multi-faceted rotating installation antenna can be calculated within the required scan coverage,the given range of pitching angle and rolling angle of the ship.The maximum scanning angle of planar phased array antenna can be minimized,so as to improve the performance of planar phased array antenna.