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    Lat/Long Calculations in Loran
    From: Lu Abel
    Date: 2001 Jul 22, 9:01 AM

    Does anyone have specific knowledge of how Loran receivers calculate L/Lo?
    
    It seems to me there are two possibilities:
    
    1.  Pseudo-ranging as is done in GPS receivers.  This involves guessing at
    a position (L, Lo, and time) and seeing if it's consistent with the
    received signals.  If not, the position is adjusted and rechecked.  This is
    repeated until the AP is consistent with all received signals and therefore
    can be called a fix.
    
    2.  Starting with the TDs as received and grinding them through some set of
    equations which produce L/Lo directly from the TDs.
    
    I'd appreciate knowing how folks like Micrologic and Furuno actually did it.
    
    Thanks.
    
    Lu
    

       
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