斜装异型陀螺系统信息融合方法研究

Research about Skew Hetero-type Gyroscope System Information Fusion Method

陀螺系统构型对航天器的可靠性和姿态控制系统的性能有着重要的影响,越来越多航天器的陀螺系统采用斜置安装方式。同时,航天器陀螺系统常采用不同类型的陀螺组成,达到提高系统可靠性和促进新研产品应用的目的。但是,不同类型的陀螺的动态响应往往存在较大差异,动态响应的差异引起的斜置异型陀螺系统姿态角速度测量误差大。本文首先分析了动态响应不一致对姿态角速度求解精度的影响机理;然后从陀螺安装方式和动态响应补偿入手解决陀螺系统的信息融合问题。仿真结果表明,本文提出的信息融合方法能够有效解决动态响应差异对斜置异型陀螺系统姿态角速度测量的影响。

The gyroscope system configuration has important influence on the spacecraft＇s reliability and the attitude control system performance. More and more spacecraft gyroscope systems were installed in an inclined way. The type of gyroscopes was deferent,not only the reliability of the system can be high,but also the new productions can be used quickly. The dynamic response of different type gyroscope was not same,and the calculation result of the spacecraft angular velocity was affected by dynamic response. The theory of the difference dynamic response affects the calculation result of the spacecraft angular velocity was analyzed. Then,the information fusion problem of gyro system was solved by means of gyro installation and dynamic response compensation. The results show the precision of angular velocity was improve by the gyro with new configuration.The simulation results show that the proposed method can effectively solve the influence of the dynamic response difference on the attitude angle velocity measurement of the non skew hetero-type gyroscope system.