针对用多基地雷达系统跟踪近距离多高速机动目标的场合,提出了一种快速跟踪算法。该算法首先用观测组合预处理模块和航迹跟踪门大量剔除冗余组合数据,然后用S-D分配算法选择最小代价量测组合,计算航迹初值点,用并行扩展卡尔曼滤波算法估计确定目标的运动状态,并提出将多个目标的滤波进程和S-D分配进程并行化以提高算法的实时性。仿真结果表明,该算法不仅能快速精确地跟踪到多目标运动状态,而且具有很好的收敛特性和稳定性。

To investigate the problem of tracking multiple high speed maneuvering targets with multi-static radar system,a fast tracking algorithm is derived.The measurement combination preprocessing module and tracking gates are introduced to eliminate a great deal of redundant combination data.The S-D assignment algorithm is adopted to search minimum cost measurement combination and calculate the track's initial values.The parallel extended Kalman filtering algorithm is put forward to estimate established target's moving state.By introducing the way of parallelizing multiple targets' filtering courses and S-D assignment course,the computing speed is improved.Simulation results show that the algorithm can accurately calculate multi-target's position and velocity with fast speed.Meanwhile,it has good convergence and stability.

TN953

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