Improved Ionospheric Model Algorithm for LEO Satellite Single-frequency Precise Orbit Determination
TIAN Yingguo, HAO Jinming, YU Heli, LIU Weiping, XIE Jiantao, ZHANG Kang
Acta Geodaetica et Cartographica Sinica . 2016, (7): 803 -809 .  DOI: 10.11947/j.AGCS.2016.20150628