Research Article

Adaptive Terminal Sliding Mode Fault-Tolerant Control of Spacecraft Based on the Left Attitude Error Function of SO(3)

Table 3

Nomenclature.

NameImplication

The differential manifold
The attitude
Identity matrix
The angular velocity
The rotational moment of inertia
The total control torque
An unknown random disturbance
The desired attitude
The left error function
The right error function
The error function
The error parametrization
The attitude error vector
The desired angular velocity
The angular velocity error vector
The sliding mode surface
The controller parameter
The controller parameter
The controller parameter
A constant
The control input in the event of a multiplicative fault
The failure factor
The sliding mode surface
Reciprocal of
Adaptive rate parameter
The estimated value of the actual value
A constant greater than 0
The error between and
Time of failure