基于交互多模型的低空目标跟踪算法研究

研究了基于交互多模型(IMM)的低空目标跟踪问题。分析了低空目标的运动特征,给出了目标匀速(CV)直线、匀加速(CA)直线、曲线飞行航迹模型。在交互多模型(IMM)算法中,采用多种运动模型跟踪低空目标。在所研究的大机动模型情况下,通过多次数据处理优化参数后,统计分析结果表明,该算法滤波后数据误差明显降低,数据精度有较大的提高,能够稳定精确地跟踪低空目标。因此,该低空目标跟踪算法是有效的。

Algorithms for Low Altitude Target Tracking Based on Interacting Multiple Model

This paper discusses the issue of low altitude target tracking based on interacting muhiple model （IMM）, analyzes the motion features of low altitude target, provides three motion models, including rectilinear motion at constant velocity, rectilinear motion at constant acceleration and curvilinear motion. Multiple motion models are used in IMM algorithm for low altitude target tracking. Three flight paths and their combination of maneuver target are tested, with parameters optimized. Statistical and analytical results show that reliable and correct low altitude target tracking is implemented by the algorithm, with standard deviation decreased and data precision improved. Therefore, the algorithm for low altitude target tracking is valid.