Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    Name or NavList Code:
    Email:
       
    Reply
    Re: The Darn Old Cocked Hat - the sequel 1
    From: Hanno Ix
    Date: 2013 Mar 13, 09:47 -0700
    Andres:

    I don't understand - that terminology is  foreign to me.
    Is there a description of both and of  their difference?
    Do you have, or can make up, cases for one and/or the other?

    All I wanted is a histogram of the absolute distance , prob(|d|) = f(|d|) or,
    in other words, the PDF of that *absolute distance* of the fix - not the fix's 
    coordinates; again: azimuth does not matter. 

    I made up that SAN Diego convention scenario which I hope got a little of your attention.
    It poses two simple questions created to illuminate . my quest. 


    Thank you, and regards!

    h


    From: Andrés Ruiz <navigationalalgorithms@gmail.com>
    To: hannoix@att.net
    Sent: Wednesday, March 13, 2013 4:57 AM
    Subject: [NavList] Re: The Darn Old Cocked Hat - the sequel 1


    Hanno and Karl,

    IMHO both are right. Two sides of the same coin.
    1. One is a simulation based in a model without navigational data, 
    2. and the other is a probabilistic treatment of the navigational problem.
    Like in FEM, the model must be validate against real observed data.

    For the second way, the confidence ellipse is obtained using the covariance matrix of the system of equations.

    Regards,
    --
    Andrés Ruiz
    Navigational Algorithms
    http://sites.google.com/site/navigationalalgorithms/
    : http://fer3.com/arc/m2.aspx?i=122832


       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.
    Email:

    Email Settings

    NavList ID Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site