基于GNSS的飞行器姿态确定算法研究

摘要

论文对基于GNSS的飞行器姿态测量进行研究.考虑姿态测量系统基线长度固定的特点,建立了单基线测量的载波相位差分姿态方程.在解算姿态方程时,为克服可能出现的载波相位观测值异常情况,提出了基于抗差卡尔曼滤波的飞行器姿态解算算法.仿真结果表明,该算法具有比最小二乘法更高的姿态解算精度和稳定性.%This paper mainly studies on the attitude determination of aircraft based on GNSS. Considering the fact that the baseline of attitude determination system is fixed,the carrier phase single difference equation is build to compute the attitude. A method based on the robust kalman filtering is presented to solve the problem of gross error in measurement data. The simulation re?sult shows that the precision and reliability of the presented method is better than the least squares method.