相控阵雷达导引头的惯性视线重构

Line of Sight Reconstruction for Phased Array Radar Seeker

针对弹载相控阵雷达导引头的惯性视线重构问题,提出了基于Unscented卡尔曼滤波(UKF)的视线重构方法。与传统方法相比,提出的方法无需对导引头测量的角信息使用微分网络,避免了对测量噪声的放大。仿真结果表明,该方法可有效地重构视线角,从而进一步提高视线转率的估计精度。

The method of inertial line of sight （LOS） and inertial LOS rate reconstruction in phasedarray seeker is investigated. Based on unscented Kalman filter（UKF） , a novel UKF inertial LOS reconstruction filter is proposed to obtain more precise inertial LOS and LOS rate information. Compared with traditional approach, the new approach avoids differential implement which would induce noise amplifica- tion. The results of computer simulations justify the validity of the LOS reconstruction filter, which can be used to improve the accuracy of LOS rate estimation.