external harmonics 中文意思是什麼
external harmonics
解釋
外調和-
In this paper, we not only analysed the different effects of the disturbing gravitation on the trajectories of different ranges, but also discussed shortcomeings of the spherical harmonics model by which the external gravitation potential of the earth is shown usually. when the model is applied directly to the calculation of the trajectory, since the recurrent calculation can not be avoided, an increase in orders of model will result on a decrease in the speed of calculation
本文重點分析了擾動引力對不同射程導彈的落點偏差的影響，並且討論了原有計算擾動引力的球諧函數法在計算速度上的缺陷（由於勒讓德函數的遞推計算，使得隨著模型階數的增加模型的計算速度下降） ，然後對其進行改進使其能更好的適用於彈道計算。 -
In the meantime, several formulas on the density of null external potential. quasi - harmonics and multi - harmonics are set and proven, which are very useful to construct and represent the characters of the functions above
同時，給出並證明幾個具有重要實用意義的關于零外部位密度、擬調和性及重調和性場源性質的基本公式。
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