Optimal triple-frequency combination observations for BDS-3 derived from a modified kernel-based fuzzy C-means clustering algorithm
Rui TIAN, Xiangxiang FAN, Ying DAI, Xianbing SUN, Xurong DONG
Systems Engineering and Electronics . 2020, (3): 686 -697 .  DOI: 10.3969/j.issn.1001-506X.2020.03.025