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Title:
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Scale domain analysis of a bat sonar signal |
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Author:
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Ristic, B; Boashash, B
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Abstract:
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Scale domain signal analysis has been developed in response to the need to analyse Doppler-tolerant waveforms or self-similar random signals. Following Cohen's concept of scale representations, this paper introduces the concept of higher-order scale-spectra and investigates advantages and drawbacks of scale domain versus the traditional frequency domain analysis. Several scale-domain methods are applied to a natural signal (a bat echolocation pulse) including the scale spectrum, the scale bispectrum and a smoothed Q time-scale distribution. |
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Description:
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This paper shows that the scale domain appears to be the appropriate domain
for bat signal analysis.
(The most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia., and then continuously updated). |
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URI:
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http://hdl.handle.net/10576/10755
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Date:
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1994-10 |