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Books > Professional & Technical > Electronics & communications engineering > Electronics engineering > Automatic control engineering
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Output Regulation of Uncertain Nonlinear Systems (Hardcover, 1997 ed.)
Loot Price: R2,721
Discovery Miles 27 210
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Output Regulation of Uncertain Nonlinear Systems (Hardcover, 1997 ed.)
Series: Systems & Control: Foundations & Applications
Expected to ship within 18 - 22 working days
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The problem of controlling the output of a system so as to achieve
asymptotic tracking of prescribed trajectories and/or asymptotic re
jection of undesired disturbances is a central problem in control
the ory. A classical setup in which the problem was posed and
success fully addressed - in the context of linear, time-invariant
and finite dimensional systems - is the one in which the exogenous
inputs, namely commands and disturbances, may range over the set of
all possible trajectories ofa given autonomous linear system,
commonly known as the exogeneous system or, more the exosystem. The
case when the exogeneous system is a harmonic oscillator is, of
course, classical. Even in this special case, the difference
between state and error measurement feedback in the problem
ofoutput reg ulation is profound. To know the initial condition of
the exosystem is to know the amplitude and phase of the
corresponding sinusoid. On the other hand, to solve the output
regulation problem in this case with only error measurement
feedback is to track, or attenu ate, a sinusoid ofknown frequency
but with unknown amplitude and phase. This is in sharp contrast
with alternative approaches, such as exact output tracking, where
in lieu of the assumption that a signal is within a class of
signals generated by an exogenous system, one instead assumes
complete knowledge of the past, present and future time history of
the trajectory to be tracked."
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