Top-down RF tomography (multistatic Fresnel-zone fusion)
heatmap = sum of Gaussian perturbation strips along each AP↔laptop link, weighted by per-AP RSSI variance.
where a body crosses a link's first Fresnel zone, that strip lights up; intersections localize.
Per-AP polar radar (motion by direction)
sector length ∝ recent RSSI variance · color = band
2.4 GHz
5 GHz
6 GHz
Total motion · last 60 s
APs (sorted by RSSI)
| id | ch | band | rssi | noise | variance | age |
|---|