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Efficient cubic spline interpolation implemented with FIR filters

Autor
Ferrer-Arnau, Ll.; Reig, R.; Marti, P.; Manjabacas, A.; Parisi, V.
Tipus d'activitat
Article en revista
Revista
International Journal of Computer Information Systems and Industrial Management Applications
Data de publicació
2012-06-26
Volum
5
Pàgina inicial
098
Pàgina final
105
Repositori
http://hdl.handle.net/2117/16993 Obrir en finestra nova
URL
http://www.mirlabs.net/ijcisim/regular_papers_2013/Paper85.pdf Obrir en finestra nova
Resum
Classical Cubic spline interpolation needs to solve a set of equations of high dimension. In this work we show how to compute the interpolant using a FIR digital filter, with a reduced number of operations per interpolated point and high accuracy. Additionally, the computation can be made on real time as the signal samples are acquired. Following this approach, we show how to obtain easily the derivatives of the interpolant in a similar way, and also signal approximations to reduce the oscillati...
Citació
Ferrer-Arnau, Ll. [et al.]. Efficient cubic spline interpolation implemented with FIR filters. "International Journal of Computer Information Systems and Industrial Management Applications", 26 Juny 2012, vol. 5, p. 098-105.
Grup de recerca
PERC-UPC - Centre de Recerca d'Electrònica de Potència UPC
SARTI - Centre de Desenvolupament Tecnològic de Sistemes d'Adquisició Remota i Tractament de la Informació
TIEG - Terrassa Industrial Electronics Group

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