GNSS_FIXDATA_ACCURACY_2 structure (gnssdriver.h)

The GNSS_FIXDATA_ACCURACY_2 structure defines the accuracy details of a fix.

Syntax

typedef struct {
  ULONG  Size;
  ULONG  Version;
  double HorizontalAccuracy;
  double HorizontalErrorMajorAxis;
  double HorizontalErrorMinorAxis;
  double HorizontalErrorAngle;
  double HeadingAccuracy;
  double AltitudeAccuracy;
  double SpeedAccuracy;
  ULONG  HorizontalConfidence;
  ULONG  HeadingConfidence;
  ULONG  AltitudeConfidence;
  ULONG  SpeedConfidence;
  double PositionDilutionOfPrecision;
  double HorizontalDilutionOfPrecision;
  double VerticalDilutionOfPrecision;
  double GeometricDilutionOfPrecision;
  double TimeDilutionOfPrecision;
} GNSS_FIXDATA_ACCURACY_2, *PGNSS_FIXDATA_ACCURACY_2;

Members

Size

Structure size.

Version

Version number.

HorizontalAccuracy

Accuracy reported with 95% confidence.

HorizontalErrorMajorAxis

Horizontal uncertainty ellipse semi-major axis with 95% confidence accuracy.

HorizontalErrorMinorAxis

Horizontal uncertainty ellipse semi-minor axis with 95% confidence accuracy.

HorizontalErrorAngle

Horizontal uncertainty ellipse orientation angle with 95% confidence accuracy.

HeadingAccuracy

Reserved, do not use.

AltitudeAccuracy

Reserved, do not use.

SpeedAccuracy

Reserved, do not use.

HorizontalConfidence

Reserved, do not use.

HeadingConfidence

Reserved, do not use.

AltitudeConfidence

Reserved, do not use.

SpeedConfidence

Reserved, do not use.

PositionDilutionOfPrecision

Position dilution of precision (PDOP).

HorizontalDilutionOfPrecision

Horizontal dilution of precision (HDOP).

VerticalDilutionOfPrecision

Vertical dilution of precision (VDOP).

GeometricDilutionOfPrecision

Geometric dilution of precision.

TimeDilutionOfPrecision

Time dilution of precision.

Requirements