Figure 3
From: Dynamic Metasurface Aperture as Smart Around-the-Corner Motion Detector
Separating the DMA’s effect from noise. (a) Representation in the complex plane of 500 transmission measurements for a given cavity, using 500 different random masks (blue) or 500 times the same random mask (red). (b–e) Histograms of Z over many realizations; Z is the standard deviation of the change between two consecutive series of transmission measurements, Z = SD(W(ti+1, m) − W(t i , m)) m , as defined in Eq. 5. The top [bottom] row corresponds to cases in which no motion [motion] occurred in between the two measurement series.
