On the Correlation Between ERP and Earth-Moon Distance with 2000-2012 VLBI Data

ERP(earth rotation parameter) was got through the handing of the 2000-01-2012-06VLBI data;the time series of distance of the Moon and Earth by JPL(Jet Propulsion Laboratory) ephemeris was calculated.The trend of ERP and the Earth-to-Moon distance is removed,and the periods of them are calculated with spectral analysis.The correction between the Earth-to-Moon distance and the periodic components of ΔLOD(change in length of day) extracted by wavelet analysis is analyzed,which would make sense in the prediction of ERP based on the planetary ephemeris.