变结构快速鲁棒跟踪系统

快速鲁棒跟踪是跟踪系统的重要指标之一。为此本文提出了自适应Ｈｕｂｅｒ函数和广义开关函数概念，并根据这两种概念，构造了具有快速和鲁棒两种特性的变结构跟踪系统。其特点是在大误差范围内系统工作在Ｂａｎｇ－Ｂａｎｇ型模糊滤波模式，以保证最短时间收敛。而在小误差范围内，工作在线性滤波器模式，以保证系统的最优性。最后给出了目标跟踪系统仿真结果。

VARIABLE STRUCTURE SYSTEM FOR FAST ROBUST TRACKING

Fast robust tracking is one of the important index in tracking system.In this paper,two new concepts,adaptive Huber function and generalized switch function,are proposed.A kind of variable structure tracking system with the ability of fast and robust is developed from these two concepts. In large error region, the tracking algorithm of Bang-Bang Fuzzy filter is used so that convergence can be achieved in the shortest time.On the other hand, in small error region,a tracking algorithm of linear filter is used so that the system can be optimal.The simulation results of this tracking system are given in the last section.