|
|
Paper title: MINIMIZATION OF FREQUENCY-WEIGHTED L2-SENSITIVITY FOR MULTI-INPUT/MULTI-OUTPUT LINEAR SYSTEMS
Author(s): TAKAO HINAMOTO, OSAMU TANAKA, AKIMITSU DOI,
Abstract: The problem of minimizing a frequency-weighted l2-sensitivity measure subject to
l2-scaling constraints is considered for multi-input/multi-output (MIMO) linear discretetime
systems. The constrained optimization problem is converted into an unconstrained
optimization problem by using linear-algebraic techniques. An efficient quasi-Newton
algorithm with closed-form formula for gradient evaluation is then applied to solve the
unconstrained optimization problem. Finally, the optimal system structure is
constructed by employing the resulting coordinate transformation matrix that minimizes
the frequency-weighted l2-sensitivity measure subject to the scaling constraints.
A numerical example is also presented to illustrate the utility of the proposed technique.
Keywords: MIMO linear discrete-time systems, Frequency-weighted l2-sensitivity. Year: 2009 | Tome: 54 | Issue: 4 | Pp.: 395-404
Full text : PDF (208 KB) |
|
|
|