Experimental Measurements of the Doppler Spectrum of the Reflected Signal at Near-Nadir Probing: Backscattering From Ice and Water Surface. - Maria Ryabkova; Vladimir Yu. Karaev; Yury A. Titchenko; Kirill Ponur; Kseniya Epanova; Eugeny Meshkov; Maria Panfilova; Dmitry Kovaldov; Ivan Osharin (IGARSS, 2023)