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水中生物音のFFT解析上の問題点と対策


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Title: 水中生物音のFFT解析上の問題点と対策
Other Titles: The Application of Fast Fourier Transform to the Analysis of Calls of Underwater Animals
Authors: 西田, 知照 / 竹村, 暘 / 小林, 洋一
Authors (alternative): Nishida, Noriteru / Takemura, Akira / Kobayashi, Youichi
Issue Date: Jan-1987
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki UniversityFaculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, 17(28), pp.1-6; 1987
Abstract: Calls of underwater animals are full of variety. Some call has very high frequency and another one has very low frequency. The duration of some call is rather long and that of another one is very short such as a pulse. Background noise recorded with calls is quite different with the recording environment. On the other hand. the functional restriction in the analyzing apparatus also exists. We must decide the way of analysis considering the audible property of each call and the recording environment. In this report. some methods for separating the objective call from background noise is shown for some calls already recorded. The difference between analyzed results due to the difference of the way of analysis is also shown.
URI: http://hdl.handle.net/10069/24221
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 17, No. 28

Citable URI : http://hdl.handle.net/10069/24221

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