Spatial Spectrum-Based Imaging for UWB Through-the-Wall MIMO Arrays

Figure 15

By dividing the imaging area into several subregions, the spatial spectrum for each target is obtained. (a–c) The gapped spatial spectrum for three targets, namely, P1, P2, and P3, respectively. (e-f) The extrapolated spatial spectrum for each target, that is, P1, P2, and P3.

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