Calculating locations and movement using raw GPS data.

Discussion in 'GPS Technical Discussion' started by Camerart, May 14, 2023.

  1. Camerart

    Camerart

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    Hi,
    Is this the correct forum, to learn how to calculate e,g between 2x locations?
    I'm working on a radio control project, that needs this type of calculation.
    Cheers, Camerart
     
    Camerart, May 14, 2023
    #1
  2. Camerart

    Nuvi-Nebie Moderator

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    I'm not sure at what level of raw GPS data you intend to start, strictly speaking 'raw' GPS data usually refers to the pseudo range satellite data that can be used to calculate a Latitude / Longitude, however I'm guessing you intend to start with the Lat. / Long. Coordinates that are output from most GPS chipsets in the form of NMEA sentences eg :-

    $GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47

    Both of these calculations are beyond my understanding, however raw data to Lat. / Long. is covered here :-

    https://www.gps-forums.com/threads/calculating-gps-position-from-raw-data.45485/

    And here :-

    http://d1.amobbs.com/bbs_upload782111/files_33/ourdev_584835O21W59.pdf
    (Section 2.4.2)

    Distance (speed) from Lat. / Long. is covered here :-

    https://www.gps-forums.com/threads/calculating-speed-using-gps-coordinates.46910/
     
    Nuvi-Nebie, May 14, 2023
    #2
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