一种改进相控阵雷达跟踪环路的方法

A Method of Improving Tracking Loop in Phased Array Radar

现代相控阵雷达具备灵活的多目标机电轴联合搜索跟踪能力,但在雷达实际应用中,当跟踪远距离低信噪比目标时,采用电轴或机电轴联合跟踪方式下的跟踪稳定性伺服角度闭环跟踪方式。本文对此问题进行了分析,通过在雷达数据处理中增加前置噪声滤波器与自适应前馈补偿模块,构建了改进的雷达跟踪闭环系统,通过对比实验,验证了改进系统能够明显提高多目标跟踪稳定性和跟踪精度。

Modern phased array radar provides flexible capability of searching and tracking multitarget with combination of mechanical and electrical axis. However in practical radar application, when it tracks target with low signal-to-noise ratio at long distance, the tracking stability servo angle closed-loop tracking mode is employed in electrical axis or with combination of electrical axis and mechanical axis mode. This issue is analyzed. And an improved radar tracking closed-loop system is composed by adding noise prefilter and adaptive feedforward compensation module in radar data processing. Finally, it is verified that the improved system can increase multitarget tracking stability and tracking accuracy obviously by contrasting experiment.