摘要
合成孔径雷达3维成像技术可以消除目标和地形在2维图像上产生的严重混叠,显著提升目标识别和3维建模能力,已经成为当前SAR发展的重要趋势。合成孔径雷达3维成像技术经过了数十年的发展,已提出多种技术体制。该文系统性回顾了SAR 3维成像技术领域的发展过程,深入分析了现有SAR 3维成像技术的特点;指出了SAR回波及图像中蕴含的未被现有技术利用的3维信息,提出“合成孔径雷达微波视觉3维成像”的新概念和新思路,将SAR成像方法与微波散射机制和图像视觉语义有机融合,形成SAR微波视觉3维成像理论与方法,实现高效能、低成本的SAR 3维成像。该文重点阐述了SAR微波视觉3维成像的概念、目标和关键科学问题,并给出了初步的技术途径,为SAR 3维成像提供了新的技术思路。
Synthetic Aperture Radar three-Dimensional(SAR 3D)imaging technology can eliminate severe overlap in 2D images,and improve target recognition and 3D modeling capabilities,which have become an important trend in SAR development.After decades of development of SAR 3D imaging technology,many types of 3D imaging methods have been proposed.In this study,the history of SAR 3D imaging technology is systematically reviewed and the characteristics of existing SAR 3D imaging technology are analyzed.Given that the 3D information contained in SAR echo and images is not fully used by existing techniques,a new concept of SAR microwave vision 3D imaging has been proposed for the first time.This new concept is integrated with microwave scattering mechanism and image visual semantics to realize three-dimensional reconstruction,which form the theory and method of SAR microwave vision 3D imaging and can achieve highefficiency and low-cost SAR 3D imaging.This study also analyzes the concept,goal and key scientific problems of SAR microwave vision 3D imaging and provides a preliminary solution,which will contribute in several ways to our understanding of SAR 3D imaging and provide the basis for further research.
作者
丁赤飚
仇晓兰
徐丰
梁兴东
焦泽坤
张福博
DING Chibiao;QIU Xiaolan;XU Feng;LIANG Xingdong;JIAO Zekun;ZHANG Fubo(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100190,China;National Key Lab of Microwave Imaging Technology,Beijing 100190,China;Key Laboratory of Technology in Geo-spatial Information Processing and Application System,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Fudan University,Shanghai 200433,China)
出处
《雷达学报（中英文）》
CSCD
北大核心
2019年第6期693-709,共17页
Journal of Radars
基金
国家自然科学基金重大项目“合成孔径雷达微波视觉三维成像理论与应用基础研究”(61991420,61991421)~~
