XIE Jun, HU Jun-chuan, DA Liang-long, et al. Spectrum analysis for naval vessel radiation noise based on cochlea model[J]. 2009, 28(5): 43-45. DOI: 10.13873/j.1000-97872009.05.018.
基于耳蜗模型的舰船噪声谱分析
摘要
为提取舰船噪声听觉特征
应用被动长波模型对舰船噪声进行了分析
得到噪声信号的二维时空分布。给出了4种一维特征
它们能够分别从不同侧面反映舰船噪声时频幅特征
同时简化了特征的描述方式。大量实验表明:基于听觉模型特征分析结果
较全面地反映了舰船噪声的听觉特征
为被动声纳目标识别提供了新的特征分析方法。
Abstract
A passive long wave cochlea model is applied to extract audial feature of naval vessel radiation noise.Based on the model
a two dimensional time space distribution spectrum of noise signal is calculated.Four one dimensional features with simple form are presented.The experiment results show that the feature based on cochlea model is consistent with auditory perception of noise signal.The approach is a new method to extract feature for passive sonar target recognition.