Next message: Alexandre Eremenko: "Frank's formulas, was: Lunars: altitude accuracy"
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
>
