Fill GPS Gaps

Use the Coordinates > Differential GPS > Fill GPS Gaps menu option (GPSGAP GX) to fill gaps in differential GPS channels by interpolating the raw GPS data within those gaps.

Fill GPS Gaps dialog options

Differential GPS channel	Name of the differential GPS channel, with gaps. Script Parameter: GPSGAP.DiffGPS
Uncorrected (raw) GPS channel	Name of the raw GPS channel (may be filtered). Script Parameter: GPSGAP.RawGPS
Corrected GPS channel	Output filled GPS data. Script Parameter: GPSGAP.FilledGPS

Application Notes

The differentially corrected locations can, and often do, have gaps, primarily because of differences in the constellation of satellites visible to the ground GPS and the moving GPS. These gaps can be filled by assuming that the moving GPS data is sufficiently linear in it's noise characteristics during the time of the gap.