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本文介绍几种评定洲际弹道导弹重力模型误差对瞄准精度影响的方法。总结了重力模型在数据形式和数据库发展方面的复杂性。提出了同下列六种已知误差源有关的误差分析方法:大地坐标误差;球谐位函数的使用与省略误差;地面重力异常的归算、表示与省略误差。
This article describes several methods for assessing the impact of the error in the intercontinental ballistic missile gravity model on aiming accuracy. The complexity of the gravity model in terms of data format and database development is summarized. The error analysis methods related to the following six known error sources are proposed: the earth coordinate error; the use and omission error of the spherical harmonic function; the reduction, representation and ellipsis error of ground gravity anomalies.