【Abstract】 The approach to deal with the colored noise in space-wise LS is discussed.The autoregressive(AR) filter is proposed to process the colored noise in the GOCE satellite gravity gradiometry,which is validated by the numerical results.The preconditioned conjugate gradient(PCCG) method and the direct inverse for solving the large normal equation are also verified by the numerical analysis.And the former approach is much faster than the latter one.Combing the radial component Vzz of the simulated grav...