飞行器参数辨识的最优方波形输入信号设计

用动态规划法设计了旨在提高飞行器气动参数辨识精度的最优方波形输入信号。设计出的信号不仅在工程上易于实现,还在精度意义上达到了最优。为了避免加输入信号后飞行器状态离开线性工作点,从而导致模型失效,该设计方法还考虑了输出约束。用于某型飞行器的输入信号设计结果表明,该法是有效的。

MUTI-STEP SIGNAL DESIGN FOR AIRCRAFT PARAMETER IDENTIFICATION

A technique using the principle of dynamic programming was developed for designing optimal flight test inputs for aircraft or missile Aerodynamic parameter estimation experiments. The optimal inputs were multi-step signal, which could be produced easily,and it reached optimality in the mean of accuracy. The technique had made it possible to include practical output constraint to avoid model invalid caused by large maneuver. An example was presented here for a linear model describing the lateral dynamics of an aircraft, showing the validity of the approach.