Research Article

Center-of-Gravity Variation-Driven Spherical UAV System and Its Control Law

Table 1

Desired trajectory.

IndexTime (sec)Target position (m)Phase

ā€”0(0, 0, 0)Initial position
A(0, 0, -10)Ascent
B(0, 0, -10)Hovering
C(10, 10, -10)Horizontal movement
D(10, 10, -10)Hovering
E(20, 0, -20)Ascent and horizontal movement
F(20, 0, -20)Hovering
G(10, -10, -10)Descent and horizontal movement
H(10, -10, -10)Hovering
I(0, 0, -10)Horizontal movement
J(0, 0, 0)Descent