数字阵列雷达发射多波束的若干关键技术

面向新一代多功能相控阵雷达对天线发射多波束技术的急需，本文在分析了雷达发射多波束特点的基础上，讨论了发射多波束技术在对地多功能监视雷达、防空反导多功能雷达和侦干探通多功能系统等领域的典型应用；梳理并总结了雷达发射多波束技术的研究历程和发展趋势；提出了单元级数字阵列雷达发射多波束的技术架构和实现方式，分析研究了单元级数字阵列多功能雷达实现发射多波束所涉及的波束带宽积提升、多路相位同步、分布式相参频率源、高效率实现和雷达资源的管理和控制等关键技术，为单元级数字阵列发射多波束的深入研究提供了技术路径。

Some Key Technologies of Transmitting Multi-Beams in Digital Array Radar

Faced with the urgent need of antenna transmitting multi-beam technology for new generation of multi-function phased array radar, this article discusses the typical applications of the transmitting multi-beam technology in the ground surveillance multi-function radar, the air and missile defense radar, and the reconnaissance, jamming, detection, and communication systems. Then the research course and development trends of radar transmitting multi-beam technologies are carded and summarized. The technical architecture and implementation of transmitting multi-beams of element-level digital array radar are given. Finally, the key technologies for the implementation of transmitting multi-beams of element-level digital array multi-function radar, such as beam-bandwidth product improvement, multi-phase synchronization, distributed coherent frequency source, high-effective implementation, radar source management and control, are analyzed and studied. Our effort can provide the technical path for deep research of transmitting multi-beams of element-level digital array.