IDBSAR：A Weighting on IF Signal Airborne DBF-SAR System and Flight Mission
Conference: EUSAR 2021 - 13th European Conference on Synthetic Aperture Radar
03/29/2021 - 04/01/2021 at online
Proceedings: EUSAR 2021
Pages: 4Language: englishTyp: PDF
Authors:
Zhou, Yashi; Zhao, Qingchao (Department of Space Microwave Remote Sensing Systems, Institute of Electronics, Chinese Academy of Science, China & School of Electronics, Electrical and Communication Engineering, University of Chinese Academy of Science, China)
Wang, Robert; Wang, Wei; Wang, Pei; Deng, Yunkai; Yu, Weidong (Department of Space Microwave Remote Sensing Systems, Institute of Electronics, Chinese Academy of Science, China)
Abstract:
Digital beamforming (DBF) technology can provide higher gain and has been gaining great attention in the field of High-resolution Wide-swath (HRWS) synthetic aperture radar (SAR) recently. However, the resource occupation is directly proportional to the channel number. A scheme of weighting on the intermediate frequency (IF) signal DBF-SAR (IDBSAR) was designed to reducing the digital resource. In order to verify the feasibility and operability, a 16-channels airborne X-band DBF-SAR system, featured by weighting on IF signal, has been designed by IECAS. An outfield flight experiment was successfully conducted in eastern Guangdong Province in November 2019.