THE METHOD OF CONSTRUCTING IONOSPHERIC TEC BACKGROUND FIELD BASED ON SVR MODEL
SONG Dong-mei, XIANG Liang, SHAN Xin-jian, YIN Jing-yuan, WANG Bin, CUI Jian-yong
SEISMOLOGY AND GEOLOGY . 2019, (6): 1511 -1528 .  DOI: 10.3969/j.issn.0253-4967.2019.06.013

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