GeocoordinateSatelliteData.TimeDilutionOfPrecision Property
Definition
Important
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Gets the time dilution of precision (TDOP) of a Geocoordinate.
public:
property IReference<double> ^ TimeDilutionOfPrecision { IReference<double> ^ get(); };IReference<double> TimeDilutionOfPrecision();public System.Nullable<double> TimeDilutionOfPrecision { get; }var iReference = geocoordinateSatelliteData.timeDilutionOfPrecision;Public ReadOnly Property TimeDilutionOfPrecision As Nullable(Of Double)Property Value
The time dilution of precision (TDOP) value, or null if the GNSS receiver returns zero for this measurement.
Windows requirements
| Requirements | Description |
|---|---|
| Device family |
Windows 10, version 2104 (introduced in 10.0.20348.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced in v12.0)
|
Remarks
Time dilution of precision indicates how satellite geometry affects the accuracy of time measurements used in GNSS position calculations. TDOP specifically measures the effect of satellite positioning on clock bias estimation.
Note
Lower TDOP values indicate more accurate time synchronization with GNSS satellites, which directly impacts position accuracy. Values of 5 or less are considered reliable, while values higher than 10 indicate low confidence and should generally be used only for rough position estimation.
Important
This property returns null if the GNSS receiver returns a zero value for TDOP, indicating the measurement is not
available.