"Drift correction" refers to the process of adjusting or correcting the deviation or error that occurs over time in a measurement or calculation, particularly in scientific or technical contexts. Full definition
The phone uses several technologies, including Motion Tracking (to detect the movement of the user), Depth Sensing (to detect the distance of objects in the physical space) and Area Leaning (the device spatial memory for drift correction and also support multiplayer games that take place in space physical space). (vrgamesfor.com)
Included in the updated SDK are improvements for drift correction and Unity performance. (androidcentral.com)
[Response: To clarify, the «personal communication» from RSS to S+C concerned a sign error in how the diurnal drift correction had been applied in the S+C 2LT product. (realclimate.org)