机载预警雷达体系架构与信号处理技术相互推动、代次发展,信号处理变革的驱动力来自于系统需求,系统架构的搭建以核心处理能力发挥到最优为准则。文中首先分析了机载预警雷达杂波谱空间-频域以及空间-距离-频域的特点; 然后,概括总结了脉冲多普勒和空时自适应处理两代体系架构演变的历史;最后,从机载预警雷达面临的杂波和干扰抑制需求出发,提出了未来机载预警雷达体系架构三种可能的演变路径。

The system architecture and signal processing technology of airborne early-warning (AEW) radar promote each other and evolve generation by generation. The driving force of the signal processing evolution comes from the requirement of the system and the guideline in the building of system architecture is to achieve the core processing ability optimally. In this paper, the characteristics of AEW radar's clutter spectrum in the space-frequency domain and space-range-frequency domain are analyzed firstly. Then, the evolution history of two generation architecture-PD and STAP is summarized. At last, based on the clutter and interference rejection problem AEW radar facing, three possible evolution ways of AEW radar's system architecture in the future are proposed.

TN959