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首页> 外文会议>2017 First International Conference on Recent Advances in Aerospace Engineering >Performance of prediction models on reentry time prediction of CZ-2C rocket body
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Performance of prediction models on reentry time prediction of CZ-2C rocket body

机译：预测模型在CZ-2C火箭弹再入时间预测中的性能

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An accurate estimation of the reentry time of a decaying near-Earth object is important for hazard assessment as well as for mitigation strategies. Models are important in the space scientific community to predict an accurate reentry time. In this paper three novel models namely Response Surface Method with genetic algorithm, Optimization with Satellite Tool Kit and Lifetime optimization with Satellite Tool Kit are extensively discussed. These models will predict the reentry time of decaying space objects from low-Earth-orbit (eccentricity <; 0.2) through an optimization technique. Each of these models is unique in methodology and objective function. Finally the usefulness of the presented models is demonstrated by presenting reentry prediction of recently decayed space object CZ-2C rocket body. The paper compares the results obtained from these models with the observed re-entry time.
机译：准确估计衰减中的近地物体的再进入时间对于危险评估以及缓解策略很重要。模型在空间科学界对预测准确的再入时间很重要。在本文中，广泛讨论了三种新颖的模型，即基于遗传算法的响应面方法，采用Satellite工具包的优化和采用Satellite工具包的寿命优化。这些模型将通过优化技术从低地球轨道（离心率<; 0.2）预测衰变空间物体的重新进入时间。这些模型中的每个模型在方法论和目标函数上都是唯一的。最后，通过提出最近衰减的空间物体CZ-2C火箭弹的再入预测，证明了所提出模型的实用性。本文将这些模型获得的结果与观察到的重入时间进行了比较。

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