变结构次优滤波器及其应用

Variable Structure Suboptimal Filter and Its Application

变结构系统(VSS)的滤波问题存在着建模复杂,因颤振影响而使滤波结果变差等困难,为此,本文提出了一种变结构Kalman滤波方法,并给出了该方法在某型飞机火力/飞行综合控制系统上的应用实例。结果表明,这种方法较好地解决了以上困难,具有较大的实用价值。

A new method of variable-structure Kalman filtering is presented to solve the existing problems in the filtering of variable structure systems (VSS), such as the complexity of modelling filter and worsening filtering results due to affects of chattering. An illustrative example of this method is given to a fire/flight synthesized control system of a certain type of plane. The simulation results show that the existing problems in the filtering of VSS are well solved, and the proposed technique is worthy of practical application.