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    Navigational Algorithms - Kaplan
    From: Andr�s Ruiz
    Date: 2006 Oct 19, 08:52 +0200

    -----Mensaje original-----
    De: NavList@fer3.com [mailto:NavList@fer3.com] En nombre de Paul Hirose
    Asunto: [NavList 1442] Re: Navigator's Newsletter, and other forums.
    Have you read Kaplan's "navigation solution" paper at the USNO site?
    His algorithm may give an error estimate. I can't remember. It's used in
    the Navy's STELLA software, which unfortunately is not available to
    civilians. If you could create an open-source implementation of Kaplan's
    algorithm, that would be some accomplishment. 
    I have programmed the Kaplan algorithm (1), in two versions, one with the 
    rhumb line equations for the oblate Earth on his articles, and another 
    simplified with mid-latitude formulas derived by my own.
    For Least squares I use a commercial package: LabWindows/CVI by National Instruments.
    The algorithm calculate the observer's position (Lat, Lon), the SOG and the 
    COG, for more than 8 observations. The STELLA software uses the input of a 
    star tracker to automate the process.
    I have now the implementation of the algorithm running in a command line 
    program, and in a not very remote future, I want to do a MMI, (man machine 
    interface) available in my web.
    I promise to write an article explaining the algorithm and containing the 
    source code in C/C++. (before 3 months??)
    (1) Determining the Position and Motion of a Vessel from Celestial 
    Observations. Kaplan, G. H. (1995). Navigation, Vol. 42, No. 4, pp. 631-648.
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