弹道主动段全射向扰动引力快速逼近方法

Fast Approximation Method of Disturbing Gravity within Active Phase for Trajectory Aiming at Any Direction

目前快速逼近方法都必须在已知主动段弹道的条件下才能进行计算,这对于弹道导弹的机动发射(指随时的打击目标的改变)重力场保障带来困难。这里提出了一种能够实现对某种标准弹道的弹道导弹主动段全射向扰动引力快速逼近方法。试验表明:在3×10-5ms-2的精度要求下,在该实验区域只需要建立6组分频多项式模型就可以实现弹道导弹主动段全射向扰动引力的快速逼近。

Present fast approximation methods of disturbing gravity can only work under the conditions that the active phase of the trajectory is known, which brings difficulty to the gravity field information service for the mobile launching of ballistic missiles. A fast approximation method of the disturbing gravity was proposed, which can work for any launching directions within the active phase. Numerical experiments showed： the accuracy of 3× 10^-5 ms^-2 was proposed with 6 groups of frequency-wise polynomial models in the active phase of the trajectory.