一种适用于常规雷达低角跟踪的改进算法

AN IMPROVED ALGORITHM USED FOR LOW ANGLE TRACKING IN CONVENTIONAL RADAR

本文主要讨论在常规雷达低角跟踪中运用波束空间域最大似然(BDML)估计的实现技术。为了改善目标方向估计的性能,文中介绍了频率分集(多个工作频率),波束空间延拓,利用先验信息,接收数据的预处理和估计数据的滤波处理等技术。最后还给出了雷达对目标跟踪的计算机模拟结果。

This paper proposes a BDML estimator used for low angle tracking in conventional radar. In order to improve estimation performance for target direction, some signal processing methods are introduced, such as frequency diversity (multi-frequency processing), beam-space expansion, utilization of information a priari, snapshot data preprocessing and data filtering after BDML estimation etc. Finally, computer simulations are provided for target tracking.