Table 1 List of variables from GNSSClock class within the Android API package “location” (European GSA, 2018b)
From: GNSS smartphones positioning: advances, challenges, opportunities, and future perspectives
Field | Description |
|---|---|
TimeNanos | GNSS receiver’s internal hardware clock value in nanoseconds |
TimeUncertaintyNanos | 1-Sigma uncertainty associated with the clock's time in nanoseconds |
FullBiasNanos | Difference between TimeNanos inside the GPS receiver and the true GPS time since 6 January 1980 |
BiasNanos | Clock’s sub-nanosecond bias |
BiasUncertaintyNanos | 1-Sigma uncertainty associated with the local estimate of GPS time (clock bias) in nanoseconds |
DriftNanosPerSecond | Clock’s drift |
DriftUncertaintyNanosPerSecond | 1-Sigma uncertainty associated with the clock's drift in nanoseconds (per second) |
HardwareClockDiscontinuityCount | Count of hardware clock discontinuities |
LeapSecond | Leap second associated with the clock’s time |
ChipsetElapsedRealtimeNanos | Time since system boot (Added in API 29) |