Ionospheric effects on SAR imaging: a numerical study. - Jun Liu; Yasuo Kuga; Akira Ishimaru; Xiaoqing Pi; Anthony Freeman (IEEE Trans. Geosci. Remote. Sens., 2003)

Techniques and tools for estimating ionospheric effects in interferometric and polarimetric SAR data. - Paul Rosen 002; Marco Lavalle; Xiaoqing Pi; Sean Buckley; Walter Szeliga; Howard A. Zebker; Eric Gurrola (IGARSS, 2011)

Ionosar - collaborative research towards understanding and mitigating ionospheric effects in SAR. - Franz J. Meyer; Konstantinos P. Papathanassiou; Jun Su Kim; Xiaoqing Pi; Anthony Freeman; Kancham Chotoo; Keith M. Groves; Edward Jones (IGARSS, 2012)

Radar Sounding Through the Earth's Ionosphere at 45 MHz. - Anthony Freeman; Xiaoqing Pi; Essam Heggy (IEEE Trans. Geosci. Remote. Sens., 2017)

Range Geolocation Accuracy of C-/L-Band SAR and its Implications for Operational Stack Coregistration. - Zhang Yunjun; Heresh Fattahi; Xiaoqing Pi; Paul A. Rosen 002; Mark Simons; Piyush S. Agram; Yosuke Aoki (IEEE Trans. Geosci. Remote. Sens., 2022)

Assessment of The Impact of Small-Scale Ionospheric Tec Variations on Insar. - Xiaoqing Pi; Shadi Oveisgharan; Heresh Fattahi; Paul Rosen 002; Franz Meyer (IGARSS, 2023)