Sliding Mode Stabilization and Synchronization Chapter | 10 311 (A) 10 5 REAL (U(2)) 0 –5 –10 0 2 4 6 8 10 12 Time (s) (B) 5 0 –5 IMAG (U(2)) –10 –15 –20 –25 –30 0 2 4 6 8 10 12 Time (s) FIGURE 10.27 Real and imaginary components of the input u(2).