2.00     2.50
TIME (SECONDS)


     2.00    2.50
TIME (SECONDS)


Figure 7-9.


Tracking error: ref. = 3.0 Hz sinusoid with amplitude of 150; dist. = 1.0 Hz sinusoid with amplitude of 50 N; I.M. frequencies = 1.0 Hz, 3.0 Hz, and 6.0 Hz


4.00


C/) (.9
iii (%U


I un


0. SO


4                                  4       4.


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