ITSIE is an Interactive Tool for System Identification
Education. The tool is developed using Sysquake,
a Matlab-like language with fast execution and excellent
facilities for interactive graphics, and is delivered
as a stand-alone executable that is readily accessible
to students and users. The tool supports the open-loop
identification using classical prediction-error
methods of 1) a SISO fifth-order system and 2) a
fluidized bed calciner example characterized by
a quasi-rational distributed system (link),
both systems subject to multiple noise sources.
The ability to evaluate externally-provided data
sets is available in the interactive tool as well.
The various stages of system identification, ranging
from input signal design using PRBS and multisine
signals through model validation are evaluated simultaneously
and interactively in one screen. The highly visual
and strongly coupled nature of system identification
is very amenable to interactive tools, and the tool
enables students to discover a myriad of important
identification topics with a much lower learning
curve than existing methods. Plans for additional
tools in the series are considered.