Introduction of the Double-Differenced Ambiguity Resolution into Precise Point Positioning. - Haojun Li; Jingxin Xiao; Shoujian Zhang; Jin Zhou; Jiexian Wang (Remote. Sens., 2018)

Investigation and Validation of the Time-Varying Characteristic for the GPS Differential Code Bias. - Haojun Li; Jingxin Xiao; Weidong Zhu (Remote. Sens., 2019)