First Result of Spaceborne Dual-Channel Spotlight SAR GMTI Experiment Using Chinese Gaofen-3 Satelite

Konferenz: EUSAR 2021 - 13th European Conference on Synthetic Aperture Radar
29.03.2021 - 01.04.2021 in online

Tagungsband: EUSAR 2021

Seiten: 5Sprache: EnglischTyp: PDF

Shen, Wenjie (Aerospace Information Research Institute,Chinese Academy of Science, Beijing, China & University of Chinese Academy of Science (UCAS), Beijing, China & Key Laboratory of Technology in Geo-spatial Information Processing and Application system, Beijing, China & North China University of Technology, Beijing, China)
Hong, Wen; Han, Bing; Yu, Weidong (Aerospace Information Research Institute,Chinese Academy of Science, Beijing, China)
Zhao, Liangbo; Zhang, Qingjun (Beijing Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing, China)
Lin, Yun; Wang, Yanping (North China University of Technology, Beijing, China)
Bi, Hui (College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China)

Ground Moving Target Indication(GMTI) using spaceborne SAR sensor is a hot topic. Some of growing trends in GMTI are long time monitoring, better detection capability and high resolution imaging of moving targets. To fulfill these conditions, a novel spaceborne dual-channel spotlight SAR experimental mode is designed. The experiments uses Chinese Gaofen-3 SAR satelite. The first experiment is conducted in June 2019 to validate the mode and assess the data. This paper presents preliminary data processing results, include essential preprocess and along-track interferometry (ATI) and displaced phase centre antenna (DPCA) results. The results shows great potential in target detection and high resolution imaging.