“轨道测定”的概念、定义、翻译、参考文献-科学参考

单词	轨道测定
释义	轨道测定 Encyclopedia 工学轨道动力学释 orbit determination轨道测定确定航天器实际运行轨道的位置速度参数的技术。轨道的位置与速度矢量在轨道动力学中是可以直接进行计算的物理量，即确定轨道上的每个点都是可以提前预知的。然而在宇宙空间中，由于航天器存在诸如入轨偏差、导航偏差、控制偏差等不确定性扰动，实际的轨道与理论的轨道存在差异。因此在航天任务中除理论推导标称轨道状态外，还需要确定实际轨道的位置速度参数，这就是轨道测定。 Astronomy determination of orbit; orbital determination轨道测定
随便看	terra-cotta figures of warriors and horses of the Han Dynasty unearthed at Xianyang Terra-cotta Figurine of Mausoleum of First Emperor of Qin Dynasty terra-cotta figurines in the Wanzhang Mausoleum of Ci County terracotta figurines of opera performers and dancers excavated from the Mausoleums of the Southern Tang Dynasty terra-cotta figurines of the Spring and Autumn period and the Warring States period terracotta warriors and horses at Shizishan Terra-cotta Warriors and Horses of Han Dynasty at Shizishan Terra-cotta Warriors and Horses of Qin Dynasty terraforming terragraph terrain terrain aided navigateon system terrain aided navigation system terrain analysis terrain avoidance radar terrain contour matching algorithm terrain contour matching technology terrain correction terrain elevation data matching system terrain-following coordinate terrain following radar terrain matching guidance terrain matching guidance system terrain matching navigation terrain modeling

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