Research Article

Performance Comparison of Particle Swarm Optimization and Gravitational Search Algorithm to the Designed of Controller for Nonlinear System

Figure 4

Position output with respect to reference input given and tracking error for backstepping-PSO and backstepping-GSA with time-varying disturbance.
679435.fig.004a
(a)
679435.fig.004b
(b)
679435.fig.004c
(c)
679435.fig.004d
(d)