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Re: Averaging lunars: was Lunars with SNO-T
From: Alexandre Eremenko
Date: 2004 Nov 2, 10:03 -0500
From: Alexandre Eremenko
Date: 2004 Nov 2, 10:03 -0500
Dear Herbert, Thank you for the references. As I understand from your last messages on the topics, these authors only discuss a Least Square algorithm, but DO NOT discuss why the simple averaging of the altitudes can sometimes be wrong, that is they do not discuss non-linearity of the altitude changes? Did I understand correctly? On Tue, 2 Nov 2004, Herbert Prinz wrote: > You had asked for the references that I made to articles discussing > relevant LSQ algorithms in > > "Navigation: Journal of The Institute of Navigation" > > C. DeWit, Optimal Estimation of a Multi-Star Fix, Vol. 21, No 4, 1974-76 > > Robert W. Severance, Overdetermined Celestial Fix by Iteration, Vol. 36, > No 4, Winter 1989-90 > > Thomas R. Metcalf, Frederic T. Metcalf, On the Overdetermined Celestial > Fix, Vol. 38, No. 1, Spring 1991 > > There are probably many more, but these are the references in have noted > down. > > Regards > > Herbert Prinz >
