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Navigational aid method, computer program product and inertial navigation system therefor

机译:助航方法,计算机程序产品及其惯性导航系统

摘要

The invention relates to a navigational aid method for an inertial navigation system including at least one inertial sensor (4) having a sensitive axis (X-X), each inertial sensor (4) comprising an ASG gyroscope (8) able to deliver an ASG signal representative of a rotation about the corresponding sensitive axis (X-X), and a MEMS gyroscope (10) able to deliver a MEMS signal representative of a rotation about the corresponding sensitive axis (X-X), the method including the steps of: between a first date and a subsequent third date, calculating a path from the MEMS signals; from the third date, calculating the path from the ASG signals; estimating a bias vector introduced by the MEMS gyroscopes (10), from the MEMS signals and ASG signals; at a fourth date subsequent to the third date, resetting the path.
机译:本发明涉及一种用于惯性导航系统的导航辅助方法,该惯性导航系统包括至少一个具有敏感轴(XX)的惯性传感器( 4 ),每个惯性传感器( 4 )包括能够传送代表围绕相应敏感轴(XX)旋转的ASG信号的ASG陀螺仪( 8 ),以及能够传送MEMS陀螺仪( 10 )代表围绕相应的敏感轴(XX)旋转的MEMS信号,该方法包括以下步骤:在第一日期和随后的第三日期之间,根据MEMS信号计算路径;以及从第三天起,根据ASG信号计算路径;根据MEMS信号和ASG信号估算MEMS陀螺仪( 10 )引入的偏置矢量;在第三个日期之后的第四个日期,重置路径。

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