Computing Receiver Position

Discussion in 'GPS Technical Discussion' started by David, Jul 7, 2015.

  1. David

    David

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    I'm working on using raw measurements from a GPS receiver to compute a receiver position and I wanted to make sure the process I was using was correct. Here's what I'm currently doing:

    Compute satellite XYZ
    Get pseudorange to each satellite in range at an observation time
    Corrected pseudorange = pseudorange - (speed of light * SV clock bias) - (speed of light * seconds between observation and ephemeris * SV clock drift) - (40.3*TEC/f^2) - (speed of light * relativistic delay)
    Perform least squares using the SV positions and corrected pseudoranges

    Does the correction look appropriate? I'm not yet incorporating a tropospheric correction.
     
    David, Jul 7, 2015
    #1
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