Title :
On-line frequency domain system identification based on a virtual instrument
Author :
Nemeth, Jósef G. ; Vargha, Balázs ; Kollár, István
Author_Institution :
Dept. of Meas. & Instrum. Eng., Tech. Univ. Budapest, Hungary
Abstract :
System identification is an inherently iterative process. Yet, limited attempts have been made so far to implement the whole identification loop in a single device. This paper discusses the difficulties of the task and presents a solution based on a Matlab toolbox and a set of virtual instruments. During the identification session the obtained models may call for refinement or validation by new experiments. Using this integrated software-hardware tool these subsequent experiments can be accomplished on-line with the identification procedure. As a demonstration, the modeling of a notch filter is described. The universal applicability of this solution is believed to be guaranteed by the modular architecture of virtual instrumentation and the general definition of the software interface developed. The interface allows combining Matlab-based identification packages with virtual instruments or pure hardware interfaced to Matlab
Keywords :
frequency-domain analysis; iterative methods; notch filters; power system analysis computing; power system identification; virtual instrumentation; Matlab toolbox; identification; integrated software-hardware tool; modular architecture; notch filter; online frequency domain system identification; software interface; system identification; virtual instrument; virtual instrumentation; virtual instruments; Data mining; Frequency domain analysis; Hardware; Information systems; Instruments; Mathematical model; Packaging; System identification; Time measurement; World Wide Web;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.777048