An Optimal Interpolation Method of GNSS Satellite Clock Error

摘要

PURPOSE: An optimal interpolation method of a GNSS(Global Navigation Satellite System) satellite clock error is provided to satisfy the accuracy of error data interpolation using only minimum error data by interpolating satellite clock error data by using a Lagrange primary polynomial. CONSTITUTION: An error value for interpolation accuracy is set(S100). Satellite clock error data according to a satellite is collected(S200). A providing frequency of the satellite clock error data is extracted(S300). Optimal periodic data is calculated to satisfy a setting error value(S400). The satellite clock error data is re-extracted based on the periodic data(S500). The re-extracted error data is linearly interpolated(S600).