L2有界不确定性鲁棒最优控制意义下的惯导初始对准

提出了一种L2有界不确定性鲁棒最优控制意义下的初始对准新方法。在初始对准中，以鲁棒最优控制理论为基础，引入辅助反馈控制量，改善了系统的动态特性，使初始对准过程加快。与传统的卡尔曼滤波相比较，水平失准角的估计精度相当，方位失准角的收敛速度大大加快，对准时间由300多秒减小到10 s以内，并且估计精度提高了一个数量级。

INS Initial Alignment Based on L2 Robust Control Theory

A new method of INS initial alignment based on L2 robust control theory was proposed. Based on robust optimal control theory, by configuring auxiliary feedback control variable, the dynam?ic performance of the system was improved, also the alignment time was shortened. The simulated re-sult shows that compared with that of traditional Kalman filter, the level misalignment angle can be es?timated with the same accuracy, while the estimated accuracy of the azimuth misalignment angle is greatly improved by one order of magnitude, the alignment time is shortened from more than 100 s to equal or less than 10 s.