Application of road information in ground moving target tracking

作者：Zhen Xinyan^*; Zhao Wei

来源：Chinese Journal of Aeronautics, 2007, 20(6): 529-538.

• ground moving target tracking
• state estimation
• road information
• models modification
• variable structure interacting multiple model (VS-IMM)

A new algorithm is developed to achieve accurate state estimation in ground moving target tracking by means of using road information. It is an adaptive variable structure interacting multiple model estimator with dynamic models modification (DMM VS-IMM for short). Firstly, road information is employed to modify the target dynamic models used by filter, including modification of state transition matrix and process noise. Secondly, road information is applied to update the model set of a VS-IMM estimator. Predicted state estimation and road information are used to locate the target in the road network on which the model set is updated and finally IMM filtering is implemented. As compared with traditional methods, the accuracy of state estimation is improved for target moving not only on a single road, but also through an intersection. Monte Carlo simulation demonstrates the efficiency and robustness of the proposed algorithm with moderate computational loads.

• 出版日期2007-12
• 单位北京航空航天大学