| 陈克安,伍莹,杨立学.基于Shamma模型的车辆噪声听觉谱特性与目标分类[J].,2011,30(6):407-417 |
| 基于Shamma模型的车辆噪声听觉谱特性与目标分类 |
| Auditory spectral characteristics and target classification for vehicle noise based on Shamma’s model |
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| 中文摘要: |
| 为了满足现代交通对汽车类型自动识别的需求,针对等响度车辆噪声提出基于Shamma模型的听觉谱特性识别特征。首先分析了Shamma模型中听觉早期阶段和听皮层多尺度分析阶段的转换原理,给出了中枢听觉模型中STRF模型及纹波密度-速率图的计算方法。利用三类车辆空转状态下噪声的幅频、听觉谱和密度-速率特性进行分类识别,发现密度-速率特征具有识别率高、计算量小的特点,更适宜用于作为目标自动识别特征。 |
| 英文摘要: |
| In order to meet the needs of automatic identification of the types of vehicle,
auditory spectrum characteristics based on Shamma’s model is proposed to identify
characteristics for equal-loudness vehicle noise. Firstly, the transition principle of the early
auditory stages and the cortical multi-scale analysis stage of this model is analyzed, and the
calculation method of the STRF model of the central auditory model and ripple scale-rate chart
are given. Then, classification and identification by amplitude-frequency characteristics, auditory
spectral characteristics and scale-rate characteristics for three types of idling state vehicles noise
are carried out. It is found that the scale-rate based features have high recognition rate and small
calculation work, and are more suitable to use as automatic target recognition |
| DOI：10.11684/j.issn.1000-310X.2011.06.002 |
| 中文关键词: 车辆噪声 听觉谱 谱时响应野 密度-速率图 目标分类 |
| 英文关键词: |
| 基金项目: |
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