MODEL VALIDATION USING TIME AND FREQUENCY DOMAIN ERROR MEASURES.

This report describes the development of a package of software which will provide scalar measures of the agreement of dynamic computer simulation models with actual systems. The software is designed for interactive use on a graphics terminal once sample system and model trajectories are in memory files. Hence, the software can be applied to any sequences regardless of origin. Six measures of the integral or supremum type are provided. Fourier transform and digital filtering capability are also provided so these scalar measures can be computed for either the time or frequency domain signals or on these signals when restricted to various frequency bands. The work reported was carried out in support of a project to model a boiler-turbine-generator system.