428053.fig.002a
(a)
428053.fig.002b
(b)
Figure 2: Reflections from the back wall in extended target signal model for the MIMO and monostatic TWI applications. (a) The MIMO mode. In this figure, the antenna array includes two transmitters and seven receivers. For convenience, only the signal channels transmitted by are marked. (b) The monostatic mode. In this figure, EM waves emitted by are mainly obscured by the target.