Research Article
Microwave Imaging of Voids in Oil Palm Trunk Applying UWB Antenna and Robust Time-Reversal Algorithm
Figure 16
Fabricated 3D-printed wooden trunks: PLA tapes, antenna array sensors, and the spherical hollows from the sample with a 100 mm diameter (a) and the sample with a 140 mm diameter (b).
(a) |
(b) |