单矢量传感器的实验分析  

Experimental analysis of single vector sensor

作　　者：岳剑平 杨春[1] 惠俊英[1] 梁国龙[1] 

机构地区：[1]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2004年第6期719-723,共5页Journal of Harbin Engineering University

基　　金：教育部优秀博士学位论文资助计划基金资助项目(199939);全国高校优秀青年教师基金资助项目.

摘　　要：单矢量传感器的有关理论得到了湖试数据的验证."雨滴"噪声场实验验证了声压、振速通道各向同性背景噪声的独立性."拉距"实验提供了方位统计量和互谱统计量,方位时间历程出现了有偏现象,声强谱与声压谱比较,前者有可能获得信号功率谱的一致性估计.提出的3种谱级信噪比的估计方法,适用于实验环境的评估.有秒量级的起伏,积分时间较短的数据样本所提供的实验分析与理论和实际经验有较好的一致性.Correlative theories of single vector sensor were validated in lake experiments. The 'raindrop' noise field experiment proved that the pressure and particle velocity of isotropy background noise are independent. Ranging test provided the statistical quantity of azimuth and cross spectrum; azimuth - time course appears partial. Compared with pressure spectrum, acoustic intensity spectrum is likely to gain the consistent estimation of signal power spectrum. Five spectrum level SNR estimating methods are fit for evaluating the experimental environment. The signal phase has the fluctuation quantified of second level. Theory and actual experience has better consistency which is approved by experimental analysis of samples of shorter integral time.

关 键 词：矢量传感器 方位估计 线谱测量 

分 类 号：TB566[交通运输工程—水声工程]