基于改进时间窗的相控阵雷达跟踪任务调度方法

Tracking Task Scheduling Method of Phased Array Radars Based on Modified Time Window

针对相控阵雷达目标跟踪过程中的任务调度问题,提出了一种基于改进时间窗的任务调度方法。该方法兼顾相控阵雷达对目标的正常跟踪和对任务的充分调度,根据目标跟踪滤波中的残差和雷达对目标的跟踪波门之间的约束关系,并结合目标的飞行方向,实现对目标跟踪任务的提前时间窗和延迟时间窗的区别计算。最后将该方法与传统的时间窗设计方法进行对比仿真,仿真结果表明,该方法既降低了目标失跟率,又保证了较高的任务调度成功率,有效提升了相控阵雷达整体调度性能,具有一定的优越性。

Aimming at the task scheduling of phased array radar in target tracking, a task scheduling method based on modified time window is proposed. The method gives consideration to both the normal target tracking and the full task scheduling. According to the constraint between the residuals of target tracking filtering and radar target tracking gate, and taking target＇ s direction of movement into consideration, the advanced time win- dow and the delayed time window of tracking task are calculated separately. Finally, the proposed method is simulated and compared with the traditional time window design method. The simulation results indicate that the method both reduces the target tracking loss ratio and ensures the high scheduling success ratio, and effec- tively improves the scheduling performance of radars, and has a certain superiority.