title: calculate distance from beacon when user is moving in a vehicle
body: <p>How to calculate distance using BLE beacons if the user is moving in a vehicle with 2-15kmph speed?Also,if the distance won't give me accurate results is there any other mechanism with the help of which I can calculate the nearest beacon.The default implementation does not give me proper results as there is a 20sec lag in distance estimates.
  Secondly,in which cases should ARMA filter be used.</p>