传感器与微系统
傳感器與微繫統
전감기여미계통
TRANSDUCER AND MICROSYSTEM TECHNOLOGY
2009年
5期
43-45
,共3页
谢骏%胡均川%笪良龙%李玉阳
謝駿%鬍均川%笪良龍%李玉暘
사준%호균천%달량룡%리옥양
耳蜗模型%被动长波模型%舰船噪声%被动声纳%水下目标识别
耳蝸模型%被動長波模型%艦船譟聲%被動聲納%水下目標識彆
이와모형%피동장파모형%함선조성%피동성납%수하목표식별
cochlea model%passive long wave model%navy vessel' s noise%passive sonar%underwater target recognition
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.
為提取艦船譟聲聽覺特徵,應用被動長波模型對艦船譟聲進行瞭分析,得到譟聲信號的二維時空分佈.給齣瞭4種一維特徵,它們能夠分彆從不同側麵反映艦船譟聲時頻幅特徵,同時簡化瞭特徵的描述方式.大量實驗錶明:基于聽覺模型特徵分析結果,較全麵地反映瞭艦船譟聲的聽覺特徵,為被動聲納目標識彆提供瞭新的特徵分析方法.
위제취함선조성은각특정,응용피동장파모형대함선조성진행료분석,득도조성신호적이유시공분포.급출료4충일유특정,타문능구분별종불동측면반영함선조성시빈폭특정,동시간화료특정적묘술방식.대량실험표명:기우은각모형특정분석결과,교전면지반영료함선조성적은각특정,위피동성납목표식별제공료신적특정분석방법.
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.
