Joint Distributions of Arbitrary Variables Made Easy
Multidimensional Systems and Signal Processing - Special issue on recent developments in time-frequency analysis
Unitary operators on the document space
Journal of the American Society for Information Science and Technology - Mathematical, logical, and formal methods in information retrieval
IEEE Transactions on Visualization and Computer Graphics
The fan-chirp transform for non-stationary harmonic signals
Signal Processing
Time-frequency analysis using warped-based high-order phase modeling
EURASIP Journal on Applied Signal Processing
Time--frequency feature representation using energy concentration: An overview of recent advances
Digital Signal Processing
Matched representations and filters for guided waves
IEEE Transactions on Signal Processing
Fast computation of frequency warping transforms
IEEE Transactions on Signal Processing
Underwater broadband source localization based on modal filtering and features extraction
EURASIP Journal on Advances in Signal Processing - Special issue on advances in signal processing for maritime applications
Wideband discrete transformation of acoustic signals in underwater environments
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Nonstationary system analysis methods for underwater acoustic communications
EURASIP Journal on Advances in Signal Processing - Special issue on recent advances in theory and methods for nonstationary signal analysis
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Unitary similarity transformations furnish a powerful vehicle for generating infinite generic classes of signal analysis and processing tools based on concepts different from time, frequency, and scale. Implementation of these new tools involves simply preprocessing the signal by a unitary transformation, performing standard processing on the transformed signal, and then (in some cases) transforming the resulting output. The resulting unitarily equivalent systems can focus on the critical signal characteristics in large classes of signals and, hence, prove useful for representing and processing signals that are not well matched by current techniques. As specific examples of this procedure, we generalize linear time-invariant systems, orthonormal basis and frame decompositions, and joint time-frequency and time-scale distributions. These applications illustrate the utility of the unitary equivalence concept for uniting seemingly disparate approaches proposed in the literature