Titlebook: V Hotine-Marussi Symposium on Mathematical Geodesy; Matera, Italy June 1 Fernando Sansò Conference proceedings 2004 Springer-Verlag Berlin

Blood-Clot

How to handle colored noise in large least-squares problems in the presence of data gaps?,ies that a non-diagonal covariance matrix has to be inverted. The problem is reduced to the solution of systems of linear equations with the covariance matrix as equation matrix. Each system is solved using a pre-conditioned conjugate gradient method. An ARMA representation of the colored noise is u