jgg     2015 35 (3):  457-459    ISSN: 0412-1961  CN: 21-1139/TG Prediction of Earth Rotation Parameters Using LS+AR  Model and Excited Functions 1 Xi’an Division of Surveying and Mapping, 36 Xiying Road, Xi’an 710054, China 2 State Key Laboratory of Geodesy and Earth’s Dynamics，340 Xudong Street,Wuhan 430077, China Received: 2014-05-05  Revised: null  Online: 2015-06-02 Supporting info