Acta Geodaetica et Cartographica Sinica ›› 2022, Vol. 51 ›› Issue (6): 862-872.doi: 10.11947/j.AGCS.2022.20220098

• Academician Forum • Previous Articles     Next Articles

New generation SAR for Earth environment observation

GUO Huadong1,2,3, WU Wenjin1,2, ZHANG Ke1,2,3, LI Xinwu1,2   

  1. 1. International Research Center of Big Data for Sustainable Development Goals, Beijing 100094, China;
    2. Key Laboratory of Digital Earth Science, Aerospace Information Institute, Chinese Academy of Sciences, Beijing 100094, China;
    3. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-02-16 Revised:2022-04-15 Published:2022-07-02
  • Supported by:
    Key Research Program of Frontier Sciences,CAS (No. QYZDY-SSW-DQC026)

Abstract: Synthetic aperture radar (SAR) systems have the unique advantage of all-time and all-weather observation. In the past decade or so, with the continuous announcement of multi-mode, multi-angle, multi-dimension, wide-swath, high-resolution, and multi-static SAR observation technologies, SAR observation has been in the "new generation" stage. This paper first introduces the development of the observation capability of the new generation SAR, including how to realize the wide-swath, multi-temporal, and multi-level observation as well as moon-base observation; Then, the development and application of new information extraction methods such as the non-stationary statistical modeling, time-frequency decomposition, deep learning, and compressed sensing for new generation SAR images are summarized; Finally, recent application progress in urban management, vegetation mapping, polar region and ocean survey, and disaster monitoring are listed to promote wider and deeper applications of the new generation SAR.

Key words: SAR, earth observation, surveying and mapping

CLC Number: