Matches in SemOpenAlex for { <https://semopenalex.org/work/W2117101257> ?p ?o ?g. }
- W2117101257 endingPage "1508" @default.
- W2117101257 startingPage "1496" @default.
- W2117101257 abstract "Cohen's class of time-frequency distributions (TFDs) have significant potential for the analysis of complex signals. In order to evaluate the TFD of a signal using its samples, discrete-time TFDs (DTFDs) have been defined as the Fourier transform of a smoothed discrete autocorrelation. Existing algorithms evaluate real-valued DTFDs using FFTs of the conjugate-symmetric autocorrelation. Although the computation required to smooth the autocorrelation is often greater than that for the FFT, there are no widely applicable fast algorithms for this part of the processing. Since the FFT is relatively inexpensive, downsampling is ineffective for reducing computation. If the DTFD needs only to be evaluated at a few frequencies for each time instant, the cost per time-frequency sample can be extremely high. The authors introduce two approaches for reducing the computation time of DTFDs. First, they define approximations to real-valued DTFDs, using spectrograms, that admit fast, space-saving evaluations. Frequency downsampling reduces the computation time of these approximations. Next, they define DTFDs that admit fast evaluations over sparse sets of time-frequency samples. A single short time Fourier transform is calculated in order for DTPD time-frequency samples to be evaluated at an additional, fixed cost per sample.< <ETX xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>></ETX>" @default.
- W2117101257 created "2016-06-24" @default.
- W2117101257 creator A5020396576 @default.
- W2117101257 creator A5043708532 @default.
- W2117101257 date "1994-06-01" @default.
- W2117101257 modified "2023-09-23" @default.
- W2117101257 title "Fast implementations of generalized discrete time-frequency distributions" @default.
- W2117101257 cites W1560631863 @default.
- W2117101257 cites W1574285569 @default.
- W2117101257 cites W1610863498 @default.
- W2117101257 cites W1964011074 @default.
- W2117101257 cites W1973119332 @default.
- W2117101257 cites W1990042256 @default.
- W2117101257 cites W1998590830 @default.
- W2117101257 cites W2041558325 @default.
- W2117101257 cites W2096092115 @default.
- W2117101257 cites W2110017348 @default.
- W2117101257 cites W2132429637 @default.
- W2117101257 cites W2134358635 @default.
- W2117101257 cites W2135463676 @default.
- W2117101257 cites W2146151157 @default.
- W2117101257 cites W2146898228 @default.
- W2117101257 cites W2150391795 @default.
- W2117101257 cites W2156527287 @default.
- W2117101257 cites W2165878107 @default.
- W2117101257 cites W2169525829 @default.
- W2117101257 cites W2249309379 @default.
- W2117101257 cites W3040267042 @default.
- W2117101257 cites W3216068995 @default.
- W2117101257 cites W2085753257 @default.
- W2117101257 cites W2413413456 @default.
- W2117101257 cites W2480086434 @default.
- W2117101257 doi "https://doi.org/10.1109/78.286965" @default.
- W2117101257 hasPublicationYear "1994" @default.
- W2117101257 type Work @default.
- W2117101257 sameAs 2117101257 @default.
- W2117101257 citedByCount "44" @default.
- W2117101257 countsByYear W21171012572013 @default.
- W2117101257 countsByYear W21171012572014 @default.
- W2117101257 countsByYear W21171012572016 @default.
- W2117101257 countsByYear W21171012572017 @default.
- W2117101257 countsByYear W21171012572018 @default.
- W2117101257 crossrefType "journal-article" @default.
- W2117101257 hasAuthorship W2117101257A5020396576 @default.
- W2117101257 hasAuthorship W2117101257A5043708532 @default.
- W2117101257 hasConcept C102519508 @default.
- W2117101257 hasConcept C104267543 @default.
- W2117101257 hasConcept C105795698 @default.
- W2117101257 hasConcept C110384440 @default.
- W2117101257 hasConcept C11413529 @default.
- W2117101257 hasConcept C115961682 @default.
- W2117101257 hasConcept C131021393 @default.
- W2117101257 hasConcept C13412647 @default.
- W2117101257 hasConcept C134306372 @default.
- W2117101257 hasConcept C142433447 @default.
- W2117101257 hasConcept C146749787 @default.
- W2117101257 hasConcept C154945302 @default.
- W2117101257 hasConcept C166386157 @default.
- W2117101257 hasConcept C183223151 @default.
- W2117101257 hasConcept C203024314 @default.
- W2117101257 hasConcept C33923547 @default.
- W2117101257 hasConcept C41008148 @default.
- W2117101257 hasConcept C45273575 @default.
- W2117101257 hasConcept C45374587 @default.
- W2117101257 hasConcept C5297727 @default.
- W2117101257 hasConcept C554190296 @default.
- W2117101257 hasConcept C57733114 @default.
- W2117101257 hasConcept C75172450 @default.
- W2117101257 hasConcept C76155785 @default.
- W2117101257 hasConcept C84462506 @default.
- W2117101257 hasConcept C9390403 @default.
- W2117101257 hasConceptScore W2117101257C102519508 @default.
- W2117101257 hasConceptScore W2117101257C104267543 @default.
- W2117101257 hasConceptScore W2117101257C105795698 @default.
- W2117101257 hasConceptScore W2117101257C110384440 @default.
- W2117101257 hasConceptScore W2117101257C11413529 @default.
- W2117101257 hasConceptScore W2117101257C115961682 @default.
- W2117101257 hasConceptScore W2117101257C131021393 @default.
- W2117101257 hasConceptScore W2117101257C13412647 @default.
- W2117101257 hasConceptScore W2117101257C134306372 @default.
- W2117101257 hasConceptScore W2117101257C142433447 @default.
- W2117101257 hasConceptScore W2117101257C146749787 @default.
- W2117101257 hasConceptScore W2117101257C154945302 @default.
- W2117101257 hasConceptScore W2117101257C166386157 @default.
- W2117101257 hasConceptScore W2117101257C183223151 @default.
- W2117101257 hasConceptScore W2117101257C203024314 @default.
- W2117101257 hasConceptScore W2117101257C33923547 @default.
- W2117101257 hasConceptScore W2117101257C41008148 @default.
- W2117101257 hasConceptScore W2117101257C45273575 @default.
- W2117101257 hasConceptScore W2117101257C45374587 @default.
- W2117101257 hasConceptScore W2117101257C5297727 @default.
- W2117101257 hasConceptScore W2117101257C554190296 @default.
- W2117101257 hasConceptScore W2117101257C57733114 @default.
- W2117101257 hasConceptScore W2117101257C75172450 @default.
- W2117101257 hasConceptScore W2117101257C76155785 @default.
- W2117101257 hasConceptScore W2117101257C84462506 @default.
- W2117101257 hasConceptScore W2117101257C9390403 @default.
- W2117101257 hasIssue "6" @default.