How is the filtering of GPS coordinates implemented in the Android system?

Question

satellite navigation

Hello!
I want to understand how Android works at the system level with geolocation. What algorithms are used for coordinate filters, what additional sensors, etc. Are there any articles on this topic? Or you can link to the source code where this functionality is implemented.
Thank you!

Answer 1

This is not implemented at the android level, but at the iron level. Smartphones have a GPS chip that does all the calculations. Ready-made coordinates, bearing, strength and other additional parameters are transferred to Android.
That is why the android emulator fundamentally cannot catch a signal from GPS satellites and turn it into coordinates.
Android complements location accuracy through cell towers, WiFi, but this is a separate second mechanism that has nothing to do with GPS