基于限制最小二乘估计的飞机舵面故障诊断方法

Detection and Diagnosis Method of Impairment Effectors Based on the Constraint Least Square Method

飞机在空中飞行时,如果舵面出现故障,将会严重的影响飞机机动,重则坠毁,因此能够实时检测出故障,可以极大地提高飞机的生存性和机动性,基于限制最小二乘方法能够鲁棒的辨识出飞机舵面的故障情况,克服由于噪声和小激励带来辨识不准确的问题,是一种很好的飞机舵面故障检诊方法。

Real-time detection of effector failures in an aircraft is crucial to the capability of survival and manoeuvre of the aircraft. The constraint least square method can robustly identify the effector failures in real. time, and can overcome the inaccuracy caused by noises and little flight manoeuvre. Finally, a 50% failure case of left effector was used as an example, the identification results show that the constraint least square method can meet the need of detection and diagnosis of effector failures in real time.