摘要
考虑到噪声中的节奏信息是声呐员目标判型的一个重要依据,分析声呐员对舰船噪声的听音感受描述,比对相应的噪声样本,提出应用短时能量、小波包低频分量重构及识别频谱中频段数的方法提取目标噪声的两个节奏特征即节奏周期和节拍数。利用实际噪声数据进行计算验证,结果表明利用这一方法可以很好地提取噪声中的有关听觉这两个节奏特征,为量化噪声听觉特征提供依据。
The rhythm feature of vessel’s noise is an important recognition basis. In this paper,the noise and the operator’s feeling of it are analyzed; the audition rhythm features are extracted by using short- term energy and wavelet reconstruction. The experiment in which real noise data is calculated is performed. The result shows that the rhythm feature extraction algorithm based on short- term energy and wavelet reconstruction is effective. It is also of importance to the research of auditory features.
出处
《电声技术》
2014年第7期58-60,共3页
Audio Engineering
关键词
听觉节奏
特征提取
舰船噪声
audition rhythm
feature extraction
vessel’s noise
