Product Manual

GPS Occupation Properties Window
MAGNET Tools ver 1.0
83
• Offset Dist
- the distance from the "Start Point"to the offset point,
in current linear units.
• Offset Ht
- the height difference between the ground point and the
offset point, in current linear units.
• Offset Across
- this field is not used for Azimuth & Offsets data.
Note 1: You can edit all fields of the tab.
Note 2 : The Original Name of this GPS occupation is "Start Point".
The offset point (calculated from the given GPS occupation and the
linear and angular offsets) has the icon.
Note 3: To obtain the coordinates of the new offset point, save the
entered values by clicking the OK button, and then click the Compute
Coordinates button.
Covariance Matrix Tab of the
Properties Window for a GPS
Observation and GPS Occupation
Displays the six modified elements of covariance matrix for the given
RTK GPS observation and GPS Occupation, in current units:
• Sigma X
- the square root of the Cov [X,X] diagonal element.
• Sigma Y
- the square root of the Cov [Y,Y] diagonal element.
• Sigma Z
- the square root of the Cov [Z,Z] diagonal element.
• CorrXY
- dimensionless correlation factor X-Y. Corr[X,Y]
=Cov[X,Y]/(SigmaX*SigmaY).
• CorrXZ
- dimensionless correlation factor X-Z. Corr[X,Z]
=Cov[X,Z]/(SigmaX*SigmaZ).
• CorrYZ
- dimensionless correlation factor Y-Z. Corr[Y,Z]
=Cov[Y,Z]/(SigmaY*SigmaZ).