一种捷联惯导引入的测角误差抑制方法  

Method of Angle Measurement Error Suppression for Strapdown Inertial Navigation

作　　者：李健[1] 齐飞林[1] 袁子雄 何德华 李朋涛 LI Jian;QI Feilin;YUAN Zixiong;HE Dehua;LI Pengtao

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2023年第2期128-134,共7页Modern Navigation

摘　　要：舰载相控阵雷达通过捷联惯导设备获取雷达实时的姿态角度信息,但捷联惯导设备存在姿态测量误差,目标在坐标变换至导航坐标系时会引入相应的测角误差。针对此问题提出一种测角误差抑制方法,该方法通过构建联合方位角测角误差和俯仰角测角误差的代价函数,调节捷联惯导设备与相控阵雷达的航向角偏差,获取最优安装位置下的综合测角误差,实现对捷联惯导设备引入测角误差的最大抑制,仿真试验验证了该方法的有效性。The shipborne phased array radar obtains the real-time attitude change of the radar through the strapdown inertial navigation,and the angle measurement error will be introduced when the targets are transformed to the navigation coordinate,as a result of the strapdown inertial navigation’s measurement errors.A method of angle measurement error suppression is proposed,which adjusts the heading angle deviation between the strapdown inertial navigation and the phased array radar by constructing the cost function of the joint azimuth angle measurement error and pitch angle measurement error.Afterwards the minimum comprehensive angle measurement error is obtained from the optimal installation position to realize the maximum suppression of the angle measurement error.The simulation experiments verify the effectiveness of this method.

关 键 词：捷联惯导设备 舰载相控阵雷达 测角误差 坐标变换 

分 类 号：TN953[电子电信—信号与信息处理]