Figure 2
From: Dynamic Metasurface Aperture as Smart Around-the-Corner Motion Detector
We measure a complex-valued matrix W whose entry W(t i , m) is the transmission S(f0) between the DMA and the monopole antenna at time t i for the mth random DMA configuration. Here we display |W| with time along the vertical and the DMA mask index along the horizontal axis. The angular position of the moving Object 1 as a function of time is indicated, as well as some sample radiation patterns for different random DMA configurations. On the right we show how thresholding the quantity D calculated from W according to Eq. 4 identifies when motion occurred and when not.
