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Time-frequency and advanced frequency estimation techniques for the investigation of bat echolocation calls

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Publication details

JournalThe Journal of the Acoustical Society of America
DatePublished - Feb 2010
Issue number2
Number of pages11
Pages (from-to)1124-1134
Original languageEnglish


In this paper, techniques for time-frequency analysis and investigation of bat echolocation calls are studied. Particularly, enhanced resolution techniques are developed and/or used in this specific context for the first time. When compared to traditional time-frequency representation methods, the proposed techniques are more capable of showing previously unseen features in the structure of bat echolocation calls. It should be emphasized that although the study is focused on bat echolocation recordings, the results are more general and applicable to many other types of signal.

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