机载UWB数字阵列SAR系统技术研究

摘要

合成孔径雷达作为一种无线电装备,也必然遵循从模拟到数字再到软件化的发展道路.数字阵列SAR/MTI雷达可以克服常规SAR/MTI雷达的瓶颈问题,具有许多常规SAR/MTI系统所不具备的优势.首先介绍了常规数字阵列雷达的优势;然后从工作体制的选择、系统的组成和关键技术等方面对机载UWB数字阵列的系统设计进行了详细的阐述;最后给出了飞行试验和地面试验验证的结果.%As a radio equipment,synthetic aperture radar follows the path of development from analog to digital and then to software.Digital array SAR/MTI radar can overcome the bottlenecks in conventional SAR/MTI radar and has many advantages that conventional SAR/MTI system does not have.This paper firstly introduces the advantages of conventional digital array radar,and then describes the design of the airborne UWB digital array radar system,including the structure,the form and the key technologies.Finally,the flight experiment results and the laboratory experiment results are showed.