振动条件下平台角振动对惯导系统误差的影响研究

本文介绍了平台式惯导系统在振动条件下陀螺漂移和加速度误差的变化规律 ,系统分析了平台角振动对惯导系统振动性能的影响。首次提出了振动条件下惯性平台角振动是导致加速度误差和陀螺漂移变化的重要因素。通过稳定回路动态仿真和角振动测试验证了平台角运动与稳定回路动态刚度有十分密切的关系 ,提出了减小平台角振动的改进方案。通过惯导系统振动试验证明了理论分析的正确性和改进措施的有效性

The Effect of the Angle Vibration of Platform on INS Error under Vibrating Situation

In this paper,the regulation of gyro drift and acceleration bias of INS under the vibrating situation was introduced.The influence upon INS error by the angle vibration of platform has been studied systematically.It is firstly put forward that the angle vibration of platform under vibration situation is the main factor causing gyro drift and acceleration bias.By means of the dynamic simulation calculation of stabilizing loop and the vibration tests,it is found that the angle vibration is much related with the dynamic rigidity of the platform servo loop,and a modified scheme was brought forward.The INS vibration experiments indicate that the theoretical analysis is right and the improving measure is effective.