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I am developing an android app for a usb GPS module of UBLOX. Is there any accuracy information in the raw NMEA data which i can use in my GUI? or do I have to use any algorithm to calculate the accuracy?

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You may be looking for the NMEA xxGST message, e.g. GPGST for GPS satellites. See section section 18.12 of the u-blox Receiver Description Protocol Reference document for more information.

  • thanks a lot, in my case GNGST was disabled, I enable it from configurations of gps. it gives: -> Standard deviation of latitude error in m. -> Standard deviation of longitude error in m. -> Standard deviation of altitude error in m. Should I take a mean of all 3 values to find my 3D accuracy? – FJ_Abbasi Sep 27 '16 at 23:05

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