| 蚱蝉(Cryptotympana atrat)自鸣声的音色与编码 |
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| 引用本文： | 冯德修,沈钧贤.蚱蝉(Cryptotympana atrat)自鸣声的音色与编码[J].生物物理学报,1992,8(1):8-13. |
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| 作者姓名： | 冯德修 沈钧贤 |
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| 作者单位： | 中国科学院生物物理研究所，北京大学视觉与听觉信息处理国家实验室 北京 100101，北京 100871 |
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| 摘 要： | 本文报道同一蚱蝉自鸣声主要含三种音色,即单音色、双音色及三音色,它们均由不重迭的子频带构成。与音色相应的自鸣声模式均由脉冲列(pulse train, PT)组成,每个PT内含主脉冲的频率恰好与子频带对应。在时域和频域上,蚱蝉自鸣声具有编码特征。
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TIMBRE AND CODING OF CALLING SONGS OF THE CICADA Cryptotympana atrata Fabricius |
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| Abstract: | In this paper, three main types of timbre, monotonal, dual tonal and triple tonal, of the calling songs of the cicada C.atreta have been revealed. The calling songs are composed of pulse trains (PT) and can be divided to several distinct frequency bands. The frequencies of the main pulses in each PT exactly correspond to the sub-frequency bands. The patterns in both the temporal domain and the frequency domain of the calling songs of the cicada C. atrata possess the coding characteristics. |
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