电光与控制, 2013, 20 (10): 33, 网络出版: 2013-10-23
基于航路点的高超声速飞行器预测校正制导律设计
Design of Waypoint Based Predictor-Corrector Guidance Law for Hypersonic Vehicles
高超声速飞行器 航路点 预测-校正 实时性 鲁棒性 hypersonic vehicle waypoint predictor-corrector real-time performance robustness
摘要
针对高超声速飞行器再入制导多约束、不确定性问题, 结合预测-校正制导和标准航迹制导的优点, 提出基于航路点规划的预测-校正制导方式, 推导出精确的制导模型和制导原理。针对制导模型参数的动态性能, 改进了数值预测算法, 并基于二次型最优性能指标设计了预测-校正制导律, 给出了制导指令数值方法的解析解, 符合高超声速制导的实时性要求。将姿态控制回路近似描述成二阶系统, 基于已规划航路进行了仿真验证, 仿真结果表明, 该方法对初始误差不敏感, 具有较高的精度和较强的鲁棒性。
Abstract
To solve the problems of multi-restriction and uncertainty in reentry guidance of hypersonic vehicles a predictor-corrector guidance method based on waypoint programming was established integrating the advantages of the standard trajectory guidance and predictive-corrector guidance and the accurate guidance model and guidance theory were derived.To eliminate the effect of model dynamic parameters the numerical predictive arithmetic was improved then a predictor-corrector guidance law based on optimal quadratic index was designed and a numerical analytic solution was derived.With the attitude control loop considered as a second order system a trajectory simulation was made between two waypoints.The result shows that this method has high precision and robustness and is insensitive to the initial errors.
肖红, 王勇, 国海峰, 王征, 臧旭. 基于航路点的高超声速飞行器预测校正制导律设计[J]. 电光与控制, 2013, 20(10): 33. XIAO Hong, WANG Yong, GUO Haifeng, WANG Zheng, ZANG Xu. Design of Waypoint Based Predictor-Corrector Guidance Law for Hypersonic Vehicles[J]. Electronics Optics & Control, 2013, 20(10): 33.