高超声速滑翔飞行器变轨段自适应跟踪制导方法

针对高超声速滑翔飞行器变轨段大偏差条件下的标准轨迹跟踪问题,提出一种基于权值矩阵自适应修正的变轨段跟踪制导方法。分析了变轨段主要控制方式和标准轨迹特性;将简化的纵向运动方程在标准轨迹附近线性化;采用将误差项引进线性二次型性能指标加权矩阵的方式,设计了改进的权值自适应修正跟踪制导方法。CAV-H飞行器仿真分析表明,该方法能够实现高超声速滑翔飞行器变轨段高精度自适应跟踪制导,对初始及过程偏差具有良好的鲁棒性。

Adaptive tracking guidance in the injection phase for hypersonic glide vehicles

According to the trajectory tracking problem of hypersonic glide vehicle under great deviation conditions, a new adaptive tracking guidance method in the injection phase has been put forward based on the adaptively revised weighting matrix. The main control mode and standard trajectory characteristics were analyzed; the simplify longitudinal motion equations were linearized near the standard trajectory; further, an improved adaptive tracking guidance method was designed by introducing the error term in linear quadratic performance index. The simulation results of CAV-H indicate that this method could achieve a great performance in adaptive tracking guidance in the injection phase, and has a good robustness to the initial and process deviation.