Mask Stationary Data

Use the Mask Stationary Data option (geogxnet.dll(Geosoft.GX.UAVSurvey.MaskStationaryData;Run)*) from the UAV Merge Sorties > Pre-processing menu to eliminate readings recorded while the drone is near static.

Mask Stationary Data dialog options

Time channel	Select the time channel from the drop-down list. This channel along with the X & Y positions is used to calculate the velocity of the drone. Script Parameter: PLAN_UAV_SURVEY.TIME_CHANNEL
Minimum velocity	Provide the velocity below which the drone is considered static or near static. Script Parameter: PLAN_UAV_SURVEY.MINIMUM_VELOCITY
Mask channel	Provide the name of the mask channel. This channel will be populated with 1S if the data is recorded at a velocity > the above specified limit and set to DUMMY otherwise. By default, this channel is named "Mask". Script Parameter: PLAN_UAV_SURVEY.MASK_CHANNEL
Mask mode	If the Mask channel exists, the result of this tool can overwrite the content of the mask channel or can be appended to the existing content. Script Parameter: PLAN_UAV_SURVEY.MASK_MODE [0 – Append (default), 1 – Overwrite]

Application Notes

Many drone models are capable of hovering in place. Data collected while hovering is of little interest and is generally eliminated from further processing.

*The GX tool will search in the "...\Geosoft\Desktop Applications \gx" folder. The GX.Net tools, however, are embedded in the geogxnet.dll located in the "...\Geosoft\Desktop Applications \bin" folder. If running this GX interactively, bypassing the menu, first change the folder to point to the "bin" folder, then supply the GX.Net tool in the specified format.