Spaceborne SAR Calibration Technology

Dear Colleagues,

Many modern spaceborne synthetic aperture radar (SAR) missions have been launched or planned to be launched by many space agencies and commercial entities in recent years, with various imaging modes (HRWS mode) and various frequency configurations, such as L-band (Alos-2, LT-1, and SAOCOM missions), C-band (GF-3 and Radarsat-2) and X-band (TerraSAR-X) configurations. With the development of SAR imaging technology and the promotion of its applications, spaceborne SAR systems have gradually been developed from LEO, single-platform, and Earth observation systems to MEO and GEO, multistatic (MirroSAR and MIMO), large constellation (Capella and ICEYE missions), and moon and other planet observation (CHANGE and Chandrayaan missions) systems. SAR calibration techniques for these spaceborne sensors are required to guarantee and provide tremendous high-quality multidimensional SAR images with high geometric, radiometric, polarimetric, and interferometric accuracy for the inversion of geophysical parameters and quantitative remote sensing applications. However, it is still challenging to meet the above requirements of modern SAR systems.

This Special Issue aims to collect high-level contributions related to advances in “Spaceborne SAR Calibration Technology”. Both original research articles with innovative ideas and review articles discussing state-of-the-art research are welcome.

We would like to invite research papers presenting deviations of calibration requirements and specifications, systematic error analyses and modeling,  calibration targets and sites (cooperate passive or active targets; PS;  target of opportunity; and degradation of rainforest, moon, and other planet mission calibrations), calibration methods and techniques (cross-inter, automatic calibration for large constellations; and long-term calibration and health monitoring), novel calibration concepts, big data and AI techniques for SAR calibration, and ongoing and future mission calibration. Well-prepared, unpublished submissions that address one or more of the following topics are welcome.

Prof. Dr. Liang Li
Prof. Dr. Feng Ming
Prof. Dr. Yu Wang
Prof. Dr. Robert Wang
Guest Editors

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