飞机迎角在垂直阵风干扰中的卡尔曼滤波估计

Angle of Attack's Kalman Filter Estimation in Vertical Gust

在阵风条件下,为了抑制飞机的附加载荷并改善乘坐品质,需要得到飞机的迎角状态。以某大型运输机为例,通过卡尔曼滤波方法,将飞机法向过载和俯仰角速度综合进飞机的操纵输入来估计垂直阵风条件下的飞机迎角,并进行了仿真。结果表明,在垂直阵风干扰条件下,采用卡尔曼滤波方法能获得迎角状态的良好估计。

In the condition of gust, in order to restrain additional load and improve the comfort of passenger, the state of angle of attack is acquired. By additional angle of attack vertical gust influences the movement of a transport, and causes normal load and pitch rate response. By Kalman filter, in conditions of vertical gust the angle of attack is estimated. An example is given and simulated. The results demonstrate Kalman filter has a good performance, and the estimated angle-of-attack well accords with its actual state.