Abstract
In this study the efficiency of the AR, MA and ARMA models was analyzed for the prediction of a center of pressure signal in a quiet upright stance on a force platform. The analysis was performed to verify differences among the above models to predict the next sample of a signal. A small prediction error allow to predict and replace any gaps in the acquired signals, which is interesting in any area of science, especially when it comes from biological signals in its most varied aspects. The Welch method was used for spectral estimation. The prediction error presented the greatest variation when comparing the cases with raw (unfiltered) and filtered data. We observed that using these models on unfiltered signals resulted in poor prediction; however, the results indicated ARMA modeling as a good predictor using filtered center of pressure signals.
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Acknowledgements
The authors are grateful for the financial support of the National Council for Scientific and Technological Development (CNPq), the Coordination for the Improvement of Higher Level Personnel (CAPES), the Foundation for Research Support of the State of Goiás (FAPEG) and the Amparo Foundation to the State of Minas Gerais Research (FAPEMIG). A. O. Andrade is a Fellow of CNPq, Brazil (305223/2014-3).
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De Villa, G.A.G. et al. (2019). Efficiency of AR, MA and ARMA Models in Prediction of Raw and Filtered Center of Pressure Signals. In: Costa-Felix, R., Machado, J., Alvarenga, A. (eds) XXVI Brazilian Congress on Biomedical Engineering. IFMBE Proceedings, vol 70/2. Springer, Singapore. https://doi.org/10.1007/978-981-13-2517-5_29
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DOI: https://doi.org/10.1007/978-981-13-2517-5_29
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