Geir Kjetil Nilsen

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A fast algorithm for creating time-frequency representations based on a special case of the short-time Fourier transform (STFT) is presented. The algorithm is extended with the method known as time-frequency reassignment. This approach makes time-frequency reassignment well suited for real-time implementations.
Electronic Data Storage Tags (DSTs) have the potential of providing long term, high-resolution observation data of individual fish in the ecosystem. However, traditional time series analysis methods are limited in extracting the required information from DSTs. The continuous wavelet transform (CWT) is a tool for decomposing a time series into instantaneous(More)
I would first of all like to thank my advisor Matthew G. Parker for his guidance and help on my thesis. His excellent guidance has been a significant asset to this thesis. I would also like to thank my fellow students and friends for their help, support and understanding through the process of this thesis; Finally, I would like to thank my girlfriend(More)
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