Fuzzy clustering analysis method for optimal combinations of BDS triple-frequency signals
LI Yuzhao, YAN Haowen, WANG Shijie, YNAG Weifang
Acta Geodaetica et Cartographica Sinica . 2020, (8): 974 -982 .  DOI: 10.11947/j.AGCS.2020.20190432