Hi,

(1) It seems to be raw eg via NMEA Strings, but you would need to read
the Android Source code for the LocationManager to be sure about what
is being put into the Location objects it returns. Some Android
devices & versions will provide both NMEA Strings and Location
objects. See the SDK documentation for details.

(2) You would need to test this on an Android device and compare it
with a high end centimetre accurate GPS device. Typically the Android
devices seem to be accurate to 10 to 20 meters horizontal and
sometimes less with a good fix, but this varies as different Android
devices use different GPS chips.

Regards

On Sep 21, 3:58 pm, Adhitya Bhawiyuga
<[email protected]> wrote:
> Let me introduce my self. I am a master student and new Android
> developer also. Now, I am working on a research about the GPS accuracy
> and I want to use the Android GPS cellphone as my basic device. But I
> have some questions :
>
> 1. How does an android GPS get the position? I mean, is there any
> correction method from Android system ( ex. averaging process ) or it
> is the real raw data from satellite?
>
> 2. How about the accuracy of android gps device?
>
> thank you very much for the attentin :-)

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