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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

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Classification and de-noising of communication signals using kernel principal component analysis (KPCA)

Koutsogiannis, G. and Soraghan, J.J. (2002) Classification and de-noising of communication signals using kernel principal component analysis (KPCA). In: 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002-05-13 - 2002-05-17, Renaissance Orlando Resort.

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Abstract

This paper is concerned with the classification and de-noising problem for non-linear signals. It is known that using kernel functions, a non-linear signal can be transformed into a linear signal in a higher dimensional space. In that feature space, a linear algorithm can be applied to a non-linear problem. It is proposed that using the principal components extracted from the feature space, the signal can be classified correctly in its input space. Additionally, it is shown how this classification process' can be used to de-noise DQPSK communication signals