4 ms·
Not correct. Wifi is not used to boost precision at speed. That is generally done via dead reckoning using the gyroscope and accelerometer. Wifi helps with bo
by zepto 5y ago
Not correct. Wifi is not used to boost precision at speed. That is generally done via dead reckoning using the gyroscope and accelerometer. Wifi helps with bootstrapping a coarse location quickly before satellites can be acquired, and with indoor positioning.
- tinus_hn 5y agoAnd (along with cellular data) with acquiring the almanac data via the Internet instead of waiting for up to 30 minutes for the satellites to broadcast it.
- Ocha 5y agoLast time I checked it took 12.5 minutes for full almanac broadcast... Did something change?
- FateOfNations 5y agoYes, but only under optimal conditions.
- seba_dos1 5y agoJust by downloading recent data without any prior knowledge of your location (aside of maybe determining which continent you're on, which most of the time is already known because of which cellular network you're connected to), you can usually easily reduce that to around a minute with no WiFi, BT or cellular triangulation necessary - and that's on a cold start; hot start will be instantaneous anyway.