Sampling theory of jointly bandlimited time-vertex graph signals

Hang Sheng, Hui Feng, Junhao Yu, Feng Ji, Bo Hu

Abstract: Highlights•We prove the necessary conditions for the stable reconstruction of JBL TVGS.•We prove lower bounds on sampling densities (or ratios) of the signals on subsets of vertices to be sampled.•We construct a multi-band sampling scheme to prove that critical sampling is achievable for any JBL TVGS.