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研究了1种适用于翼伞系统自主归航过程中的在线风场辨识模型.针对翼伞系统归航过程中容易受到周围风场干扰,实现精确自主归航需要辨识出周围风场信息的问题,根据翼伞系统飞行轨迹变化特征,建立了1种在线风场辨识的模型.模型分为转弯飞行和直线飞行风场辨识2个部分,采用风速矢量3角形及曲线拟合等方法实现实际平均风场识别.对模型的应用条件和性能特征作了分析.数据仿真结果表明,该模型能够正确识别出预定风场信息,证明了模型的正确性和有效性,为翼伞系统实现在线轨迹规划提供了风场信息前提.
This paper studies on-line wind field identification model which is suitable for the natural parachute system during the process of autonomous air-to-air homing.As the parachute system is easily interfered by the surrounding wind field during the course of homing, the problem of identifying the information of the surrounding wind field , A model of on-line wind field identification is established according to the characteristics of the flight path of the wing umbrella system.The model is divided into two parts: turning flight and straight-line wind field identification, and the actual average Wind field identification.The application conditions and performance characteristics of the model are analyzed.The simulation results show that the model can correctly identify the wind field information and prove the correctness and validity of the model and realize the online trajectory planning Wind farm information provided.