扰动重力对惯性导航的影响

Effect of Gravity Disturbance on INS

随着惯性器件的日臻完善，扰动重力已成为影响惯性导航精度的重要因素。本文从惯性导航比力方程着手，推导了扰动重力影响惯性导航的严密理论公式，着重研究了扰动重力为随机常数、随机斜坡、三角函数时影响惯性导航的作用机理，定量分析了扰动重力引起的惯性导航误差。

With the development of the inertial apparatus, the gravity disturbance has become a main factor that affects the INS precision. In this paper, the rigorous formula for evaluating the influence of gravity disturbance on INS is derived from the in- ertial force equation, and the mechanism of the effect on INS is studied when the gravity disturbance may be random constant, random slope and sinusoidal components, then the inertial navigation errors caused by gravity disturbance are analyzed.