捷联惯导系统中陀螺的初始测漂

本文介绍捷联惯导系统中多个陀螺初始常值漂移的测定和补偿。所谓“常值漂移”是指固定不变的漂移和一部分在各次启动时都不相同的并随时间缓慢变化的“随机常值”。本文采用“双位置(测漂)法”可以测出两个角速度陀螺沿载体系X_b,y_b和z_b测量轴的常值漂移。经过仿真证明,这一方法是完全可行的。

Initial Measurements of Drifts of Gyroscope for Strapdown Inertial Systems

This report gives out a new method for measuring and compensating the initial con-stant drifts of gyroscopes for strapdown inertial systems. The constant drift (c.d) is the sum ofthe unchanged drift with time and the part of the random constant drifts which are differentialat every system-activating time and vary slowly with time. The constant drifts of the two an-gular velocity gyroscopes along the measurement axes x_b,y_b and z_b of the body coordinatecan be measured respectively with the introdueed two-positition method. Its feasibility has badproved by simulations.