Abstract:Aiming at the situation that there is single gross error in the observation vector of the Errorsin variables(EIV) model, we propose the robust total leastsquares method. On the basis of the generalized maximum likelihood estimation, we use the observation vector residual function which grows more slowly instead of observation vector squared residuals items, and have deduced robust total leastsquares estimation calculation formula with the iteration method with variable weights. Finally, we apply the new method to the coordinate transformation parameters determination, and verify the feasibilities of the new method.