波束宽度较窄的雷达系统通常面临着搜索效率过低、高角速度目标航迹起始困难的问题。在常规跟踪加搜索航迹起始模型的基础上,文中给出了一种利用目标角速度估计值的模型改进方案。通过自适应优化搜索屏排布,外推首点验证波束位置,大幅提高了目标的穿屏捕获概率和首点验证成功率,针对性地改善了高角速度目标的航迹起始能力。通过蒙特卡洛仿真,验证了改进效果,为窄波束雷达高角速度目标航迹起始提供了较好的解决方案。

A radar system with narrow beam-width always exhibits low efficiency in searching and difficulties in track initiation for high angular velocity targets. Based on the normal TAS track initiation model, an optimized scheme by using the estimated value of target angular velocity is introduced. To be specific, it helps to improve the capture probability and success rate of the first validation, through self-adapting search beam configuration and extrapolating location of the first validating beam. Monte-Carlo simulation results have proved its improvements, and provide the narrow beam radar system with a better solution for high angular velocity target track initiation.

TN972