Research Article

Numerical Investigation on ELF Electromagnetic Field Distribution of Pipeline Robot Tracking and Positioning System Using UAV

Figure 16

Distribution and plane isogram of under inclined transmission-horizontal reception.
(a) , , 30°, 60°, and 90°
(b) , , 30°, 60°, and 90°
(c) , , 30°, 60°, and 90°