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    Re: Navigation using satellite doppler shift
    From: Richard B. Langley
    Date: 2016 Feb 1, 09:19 -0400

    Although it's not the normal way, GPS positioning can also be helped using Doppler measurements:
    http://gpsworld.com/gnss-systemalgorithms-methodsinnovation-doppler-aided-positioning-11601/
    My intro contains a little bit of Doppler history.
    -- Richard Langley
    P.S. My instrument onboard the Canadian CASSIOPE research satellite contains 5 
    GPS receivers. We can get very good orbital positions (a few metres in real 
    time and much better than that using post-processed data).
    
    -----------------------------------------------------------------------------
    | Richard B. Langley                            E-mail: lang@unb.ca         |
    | Geodetic Research Laboratory                  Web: http://gge.unb.ca/     |
    | Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142   |
    | University of New Brunswick                   Fax:      +1 506 453-4943   |
    | Fredericton, N.B., Canada  E3B 5A3                                        |
    |        Fredericton?  Where's that?  See: http://www.fredericton.ca/       |
    -----------------------------------------------------------------------------
    
    

       
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