Finite-Time Stabilization Control for a Rigid Spacecraft under Parameter Uncertainties

Table 1

Spacecraft model and controller parameters.

The project name	Parameter
Spacecraft model parameters	Moment of inertia 𝐉=2000.9;0170;0.9015 kg·m^2
	Initial position 𝐪(0)=[0.9;−0.3;0.26;0.18]
	Initial angular velocity 𝜔(0)=[0.3;−0.25;−0.3] rad/s
Finite time controller	𝑘1=1.8,  𝑘2=1.2,  𝑘3=2.6,  𝛼=0.8,  𝛽=0.86
	𝐊𝑣=diag11.22,  𝐀=diag111,  𝐁=diag111
PID controller	𝐾𝑃=3.2,  𝐾𝐼=0.0005,  𝐾𝐷=4.0