Calculate GPS accuracy in meters

[Chris Burns]

There are other GPS modules on the market which can give information like "the device is within 10 meters of the given coordinates". Is there a way to either get this information from the nRF9160 or calculate it from the information it provides?

[Chris Burns]

Apparently the information I was looking for is already in the PVT notification. It's the accuracy field and the comment in nrf_socket.h is:

float accuracy; /**< Accuracy (2D 1-sigma) in meters. */

So that field will give the accuracy to within one standard deviation.

[Heidi]

Hi, yes you're correct. 

The accuracy field of the PVT notification gives an estimated standard deviation for the fix accuracy, so if the accuracy field is e.g. 5, the fix is estimated to be within 5 meters with 67% probability. 

Best regards,

Heidi