C. Wang, W.-L. Guo, Q.-H. Zhang, H.-S. Zhao, and L. Cao. 3-D Computerized Ionospheric Tomography with GPS, SAR, and Ionosonde. IEEE Transactions on Geoscience and Remote Sensing, 2023 . C. Wang, L. Chen, H. Zhao, and W. Guo. Verification of high-resolution and precision TEC retrieval based on the PALSAR full-polarimetric data. Proceedings: Active and Passive Microwave Remote Sensing for Environmental Monitoring II, volume 10788, 2018 .