Identify the source of empty-room false Tracks

Identify the physical or signal-processing source of the false Tracks that appeared near node n006 during empty-room periods, distinguishing among room motion, a curtain, a door, a fan, and artifacts from individual CSI Links.

Background

The pilot produced false Tracks during both empty-room periods, with all such Tracks concentrated near approximately (6.7, 4.0), close to node n006. The authors observed that the cause could be an environmental object or a problematic Link but did not identify it, leaving the origin of these false detections unresolved.

References

Whatever moves there, a curtain, a door, a fan or a Link artefact, was not identified during the session.

— Ghostline: a six-node Wi-Fi CSI motion tracker with node-to-node Links. System description and a pilot evaluation  (2610.18764 - Cochinescu et al., 13 Oct 2026) in Section 5.4, Empty room; Section 6, What the numbers mean