一个高精度无人机载多功能SAR系统

摘要

This paper describes an ultrafine MultiFunctional Unmanned Aerial Vehicle (UAV) SAR (MFUSAR) developed at the Institute of Electronics, Chinese Academy of Sciences. MFUSAR can operate in Ku and X band and be capable of high resolution, interferometry and full polarimetry. The function and architecture of MFUSAR are described in detail. An effective motion compensation, wideband signal generation and IF receiver, multi-channel balance are proposed for MFUSAR. High quality images formed in the UAV flight tests demonstrate clearly the feasibility of UAV borne multifunctional SAR system.%　　该文介绍了中国科学院电子学研究所研制的一个高精度无人机载多功能SAR系统，该系统可灵活工作在Ku和X波段，具有高分辨率、干涉、全极化成像能力。该文对该系统的指标、功能、组成进行了描述，提出了高精度运动补偿、宽带信号产生和中频接收、多通道幅相一致性保持等方案，通过车载和无人机飞行实验，验证了无人机装载多功能SAR系统的可行性。