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提出使用单矢量传感器进行飞行器姿态角估计的新方法,安装在飞行器平台的单电磁矢量传感器接收来自基站的极化电磁波信号,用MUSIC算法进行信号DOA和极化参数估计,得到机体坐标系到地理坐标系的转换矩阵即飞行器姿态矩阵,最终估计飞行器姿态角。Matlab仿真验证了该方法的有效性,姿态角估计误差在1.5°内,满足飞行器控制的要求。
A new method of attitude attitude estimation using a single vector sensor is proposed. A single electromagnetic vector sensor mounted on an aircraft platform receives the polarized electromagnetic wave signals from the base station. The signals DOA and polarization parameters are estimated by the MUSIC algorithm to obtain the coordinates of the body coordinate system to the geographic coordinates The transformation matrix of the coordinate system is the aircraft attitude matrix, and finally the aircraft attitude angle is estimated. Matlab simulation verifies the effectiveness of the proposed method. The attitude estimation error is within 1.5 °, which meets the requirements of aircraft control.