| 果蝇振翅鸣声信号特征分析 |
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| 引用本文： | 聂晓颖,郭敏.果蝇振翅鸣声信号特征分析[J].西安文理学院学报,2007,10(1):14-17. |
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| 作者姓名： | 聂晓颖 郭敏 |
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| 作者单位： | 陕西师范大学计算机科学学院 陕西西安710062 |
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| 摘 要： | 发声是动物间进行交流的信息方式,声音信号的特征对应于动物的某种行为.以Matlab为工具,对采集到的雌、雄地中海果蝇飞行时振翅产生的声音进行了时域和频域的分析、比较,并提取其声音信号特征参数,即正常飞行鸣声的波形都为正弦波,声音的基频为147Hz,并带有多个谐波,其窄带声谱图具有良好的频率分辨率.研究还表明这种果蝇种内雌雄两性飞行时振翅特征有很大相似性.
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| 关 键 词： | 果蝇振翅声结果 特征参数 分析 |
| 文章编号： | 1008-5564(2007)01-0014-04 |
| 修稿时间： | 2006年11月14 |
Analysis of Signal Features about Fruit Fly's Wing Fluttering Vibration |
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| NIE Xiao-ying,GUO min.Analysis of Signal Features about Fruit Fly''''s Wing Fluttering Vibration[J].Journal of Xi‘an University of Arts & Science:Natural Science Edition,2007,10(1):14-17. |
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| Authors: | NIE Xiao-ying GUO min |
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| Abstract: | Sound is a means of communication between animals,the feature of sound signal corresponds with the animal's particular action.Using Matlab,the male and female Medfly's sound signals,caused by wing fluttering while flying,were analyzed and compared in the light of time and frequency domain, and their sound feature parameters were extracted.The wave form of their normal flying are all in a sine wave,the fundamental frequency of their sound is 147Hz,with many harmonics,their narrow band spectrum graph has good frequency resolution. |
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| Keywords: | time domain frequency domain feature parameters fundame7ntal frequency harmonic wave |
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