基于火箭残骸实时定位信息的落点计算模型

The Model for Computing Rocket Wreckage Landing PointBased on Real-time Location Information

摘要:

为减轻航天发射任务落区工作负担,提升落区应急处置速度,需建设一套火箭残骸回收系统,采用全球卫星导航技术完成残骸坠落过程的实时自定位,利用精简适用型落点计算模型实现残骸落点快速精准计算,从而高效完成残骸回收工作。提出了一种基于火箭残骸实时定位信息的落点计算模型,即以残骸坠落过程中的实时位置、速度信息为输入,建立考虑空气阻力的动力学模型,计算出预测落点。并基于火箭残骸坠落试验获取的自定位实测数据,对模型精度进行了验证,计算结果理想,模型简化适用、准确有效,可推广应用至基于可靠的弹道测量数据对火箭落点进行预测计算。

Abstract:

In order to reduce the workload and improve the emergency response speed in space launch mission landing area, a rocket wreckage recovery system needs to be built, which uses the global satellite navigation technology to achieve real-time self-positioning of the falling wreckage, and calculates the landing point quickly and accurately through a simplified applicable model, so the work can be completed efficiently. Taking the real-time position and velocity information of the wreckage as input, and considering air resistance, a dynamic model based on the real-time location information of the rocket wreckage is proposed to calculate the predicted landing point. Based on the measured self-positioning data from the rocket wreckage falling experiment, the accuracy of the model is verified and the calculation result is ideal, which shows that the model is accurate and effective, and it can be popularized and applied to predict the rocket landing point on the basis of accurate ballistic measurement data.