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- W4320912059 abstract "基于SGP4模型在空间目标轨道预报中的应用, 在预报的位置速度信息和误差 信息基础上, 提出一种空间两目标碰撞预警的分析方法, 即随机点模拟方法. 与传统的交会平面积分方法相比, 其主要有两点不同: 一是在误差信息中考虑 了误差均值的影响, 即误差椭球不再以预报位置为中心分布; 二是在分析方 法上侧重于真实模拟可能的交会情形, 而不忽略任一方向上的误差. 通过算例分 析验证了该方法的可行性, 结果表明误差均值的非零性使得最大碰撞概率不 一定出现在预报的最近交会距离时刻. 同时仿真结果还表明, 两目标在相对速 度方向上的相对位置仍然存在误差, 这可能造成随机点模拟的碰撞概率计算 值较交会平面积分方法偏小. 不同的碰撞预警分析方法对应不同的预警门限, 根据文中实例, 初步确定10<sup>-6</sup>为随机点模拟方法的红色预警值." @default.
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- W4320912059 date "2015-01-01" @default.
- W4320912059 modified "2023-09-27" @default.
- W4320912059 title "Dangerous Conjunction Analysis Of Space Objects Based On Random Point Simulation Method" @default.
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- W4320912059 doi "https://doi.org/10.11728/cjss2015.05.596" @default.
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