  This paper focuses on the spacecraft attitude control problem with
intermittent actuator activation, taking into account the attitude rotation
rate limitation and input saturation issue simultaneously. To address this
problem, we first propose a composite event-trigger mechanism, which composed
of two state-dependent trigger that governing the activation and deactivation
of actuators. Subsequently, by introducing the cascaded decomposition of
Backstepping control philosophy, the designed trigger mechanism is then applied
to the decomposed dynamical subsystem, providing a layered intermittent
stabilization strategy.
  Further, the basic intermittent attitude controller is extended to a
"constrained version" by introducing a strictly bounded virtual control law and
an input saturation compensation auxiliary system.
  By analyzing the local boundedness of the system on each inter-event time
interval, a uniformly, strictly decreasing upper boundary of the lumped system
is further characterized, thereby completing the proof of the system's
uniformly ultimately boundedness (UUB). Finally, numerical simulation results
are illustrated to demonstrate the effectiveness of the proposed scheme.
