Truncation of fractional derivative for online system identification
Idioma
EN
Article de revue
Este ítem está publicado en
IFAC-PapersOnLine. 2022-01-01, vol. 55, n° 34, p. 60-65
Resumen en inglés
Fractional derivatives are non local operators that has compacity property in terms of parameter number for modeling diffusive phenomenon with very few parameters. One of its main properties is its non-local behavior, as ...Leer más >
Fractional derivatives are non local operators that has compacity property in terms of parameter number for modeling diffusive phenomenon with very few parameters. One of its main properties is its non-local behavior, as it can be exploited to model long-memory phenomena such as heat transfers. However, such non-locality implies a constant knowledge of the full past of the function to be differentiated. In the context of real-time system identification, this may limit the experiences as calculations become slower as time progresses. This study deals with the relationship between frequency content of a signal and its truncation error in order to obtain real-time exploitable algorithms.< Leer menos
Palabras clave
Fractional derivative
Short memory principle
LMRPEM
System identification
Centros de investigación