摘要
角速度匹配传递对准的量测量是主惯导的高精度陀螺测量信息与子惯导的陀螺测量信息之差,将角速度匹配传递对准的量测量送入卡尔曼滤波器进行信息融合,以获得导航系统误差的最优估计值。通过对角速度匹配传递对准的系统状态模型和量测模型的构建与分析,在将机翼弹性变形等干扰项为有色噪声时,采用H_∞次优滤波的角速度匹配传递对准方式估计弹体的安装误差角与姿态失准角,从而实现机载导弹武器系统的快速传递对准。仿真结果表明,基于H_∞次优滤波的角速度匹配传递对准,能有效抑制实际应用中弹体的机翼弹性变形等外界不确定噪声的干扰,在确保传递对准鲁棒性能的同时,可以获得良好的快速性能和滤波精度。因此,作为一种空中飞行的对准方法,采用H_∞次优滤波将干扰项作为有色噪声应用于角速度匹配传递对准更符合工程应用的实际情况。
The measurement of angular rate matching is the difference of gyro between Master Inertial Navigation System( MINS) and Slave Inertial Navigation System( SINS). The measurement of angular rate matching is used the Kalman filter to achieve the optimal estimate of Inertial Navigation System. By constructed and analysis of the state equation and measurement equation of angular rate matching,the paper uses the H_∞ filter to estimate the installation error and misalignment of attitude when the elastic deformation of the wing is considered as colored noise. The results of simulation shows that the H_∞ filter of angular rate matching can effective restrict the disturbance of the elastic deformation of the wing,while it can guarantee the robust performance to improve the precision of angular rate matching and the rapidity of angular rate matching. As a flight of Transfer Alignment,the H_∞ filter of angular rate matching is more accorded the engineering practice when the system noise and measurement noise are color noises.
出处
《传感技术学报》
CAS
CSCD
北大核心
2017年第8期1199-1203,共5页
Chinese Journal of Sensors and Actuators
基金
陕西省教育厅专项(15JK14
14JK1429)
校基础研究基金项目(JC1702)
国家自然科学基金项目(51678470)
