Spatial and Temporal Variations of Polar Ionospheric Total Electron Content over Nearly Thirteen Years. - Hui Xi; Hu Jiang; Jiachun An; Zemin Wang; Xueyong Xu; Houxuan Yan; Can Feng (Sensors, 2020)

A New Method to Determine the Optimal Thin Layer Ionospheric Height and Its Application in the Polar Regions. - Hu Jiang; Shuanggen Jin; Manuel Hernández-Pajares; Hui Xi; Jiachun An; Zemin Wang; Xueyong Xu; Houxuan Yan (Remote. Sens., 2021)