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中文摘要：
探讨扰动重力矢量引起的惯性导航系统位置与速度误差的数学计算方法,通过对某海域重力异常的计算,分析扰动重力矢量引起的惯性导航系统位置与速度误差量级的大小及特性。提出重力辅助惯性导航中重力传感器输出的信息,除了能应用于重力匹配以校正惯性导航系统陀螺漂移等累积误差外,还可用于惯性导航比力方程的重力场改正,以消除力学方程中的惯性导航舒拉误差。
英文摘要：
The mathematic methods of position and velocity errors in Inertial Navigation System caused by disturbing gravity vector are discussed.Through the calculation of the data of a certain oceanic area where the gravity anomalies are known the magnitude and characteristics of the errors are also studied.The output information of gravity sensor in Gravity-Aided Inertial Navigation System can be applied in gravity matching to correct gyro-shifting errors of inertial navigation cumulated with time and also be used in gravity correction to eliminate Schuler errors caused by the fact that the normal gravity rather than the actual gravity is used in the mechanical equation.
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