Re-entry gliding vehicles exhibit high maneuverability,making trajectory prediction a key factor in the effectiveness of defense systems.To overcome the limited fitting accuracy of existing methods and their poor adap...Re-entry gliding vehicles exhibit high maneuverability,making trajectory prediction a key factor in the effectiveness of defense systems.To overcome the limited fitting accuracy of existing methods and their poor adaptability to maneuver mode mutations,a trajectory prediction method is proposed that integrates online maneuver mode identification with dynamic modeling.Characteristic parameters are extracted from tracking data for parameterized modeling,enabling real-time identification of maneuver modes.In addition,a maneuver detection mechanism based on higher-order cumulants is introduced to detect lateral maneuver mutations and optimize the use of historical data.Simulation results show that the proposed method achieves accurate trajectory prediction during the glide phase and maintains high accuracy under maneuver mutations,significantly enhancing the prediction performance of both three-dimensional trajectories and ground tracks.展开更多
南京市南部新城是南京市重要的新城区之一,本文主要运用基于CIM平台的城市系统仿真(CSS:City System Simulation)技术对南部新城的规划建设进行深入研究和探索,通过对城市的CIM数据搭建分析,提出了一些科学、合理的城市规划和数据治理方...南京市南部新城是南京市重要的新城区之一,本文主要运用基于CIM平台的城市系统仿真(CSS:City System Simulation)技术对南部新城的规划建设进行深入研究和探索,通过对城市的CIM数据搭建分析,提出了一些科学、合理的城市规划和数据治理方法,总结了基于CIM平台的城市仿真模型的应用前景和未来的研究方向。展开更多
基金supported by the National Natural Science Foundation of China(12302056)the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation(GZC20233445)。
文摘Re-entry gliding vehicles exhibit high maneuverability,making trajectory prediction a key factor in the effectiveness of defense systems.To overcome the limited fitting accuracy of existing methods and their poor adaptability to maneuver mode mutations,a trajectory prediction method is proposed that integrates online maneuver mode identification with dynamic modeling.Characteristic parameters are extracted from tracking data for parameterized modeling,enabling real-time identification of maneuver modes.In addition,a maneuver detection mechanism based on higher-order cumulants is introduced to detect lateral maneuver mutations and optimize the use of historical data.Simulation results show that the proposed method achieves accurate trajectory prediction during the glide phase and maintains high accuracy under maneuver mutations,significantly enhancing the prediction performance of both three-dimensional trajectories and ground tracks.
文摘南京市南部新城是南京市重要的新城区之一,本文主要运用基于CIM平台的城市系统仿真(CSS:City System Simulation)技术对南部新城的规划建设进行深入研究和探索,通过对城市的CIM数据搭建分析,提出了一些科学、合理的城市规划和数据治理方法,总结了基于CIM平台的城市仿真模型的应用前景和未来的研究方向。
