B4J Question Calculate Accuracy from NMEA-Sentence

drgottjr said:

read

Click to expand...

Hi @drgottjr ,

I also found the link.
I thought maybe someone would have found an easier solution.

i was hoping that link would deter you ?

drgottjr said:

i was hoping that link would deter you ?

Click to expand...

that's why I asked the question here, with the hope that someone would have an easier solution.

Filippo said:

that's why I asked the question here, with the hope that someone would have an easier solution.

Click to expand...

Hi Filippo,
The NMEA sentence actually containing accuracy (in meters) for the position-solution is called GST.

i.e.:
$GPGST,143333.00,7.38,1.49,1.30,68.1409,1.47,1.33,2.07*4A

(don´t get messed with "7.38,1.49,1.30,68.1409" they are related with other statistic concepts/nuances).
You can use the following as very reliable estimators of the "position-solution" error I suspect you are looking for:
1.47 --> "estimated" error (in meters) in Latitude.
1.33 --> "estimated" error (in meters) in Longitude.
2.07 --> "estimated" error (in meters) in Altitude.

(I quote estimated because there are lots of statistic concepts and calculations involved and hence some scholars could add lots of comments).
(PDOP, HDOP, GDOP, etc. contain "relative" values hardly translatable to meter values).
I hope this helped.