[1]王飞,黄益旺,孙启航.沙质沉积物声学参数测量的换能器驱动信号补偿方法[J].哈尔滨工程大学学报,2018,39(06):1039-1045.[doi:10.11990/jheu.201611081]
 WANG Fei,HUANG Yiwang,SUN Qihang.Transducer driving signal compensation for acoustic parameters measurement in sandy sediment[J].hebgcdxxb,2018,39(06):1039-1045.[doi:10.11990/jheu.201611081]
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沙质沉积物声学参数测量的换能器驱动信号补偿方法(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
39
期数:
2018年06期
页码:
1039-1045
栏目:
出版日期:
2018-06-05

文章信息/Info

Title:
Transducer driving signal compensation for acoustic parameters measurement in sandy sediment
作者:
王飞12 黄益旺12 孙启航12
1. 哈尔滨工程大学 水声技术重点实验室, 黑龙江 哈尔滨 150001;
2. 哈尔滨工程大学 水声工程学院, 黑龙江 哈尔滨 150001
Author(s):
WANG Fei12 HUANG Yiwang12 SUN Qihang12
1. Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China;
2. College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
沉积物声速衰减驱动信号补偿声源发送电压响应
分类号:
O427.9
DOI:
10.11990/jheu.201611081
文献标志码:
A
摘要:
准确的沉积物声速和衰减数据对于沉积物声学模型的验证极其重要,但是由于实际声源工作带宽的限制以及发送电压响应不平坦,造成了发射声信号频谱形状改变,导致实验测量数据不准确。为此,本文采用实测的换能器发送电压响应对驱动信号进行补偿,以实现窄带换能器频响特性的均衡,减弱换能器对发射信号的影响。数值仿真验证了本文所提方法的有效性,并且实验结果表明,驱动信号经补偿后,窄带发射声信号中心频率的偏移得到有效抑制,宽带发射声信号的带宽与驱动信号的带宽更为逼近。同时,该方法拓宽了窄带测量数据的有效带宽,降低了宽带测量获取的声速和衰减数据的起伏,使得窄带和宽带数据更加一致,提升了实验结果的准确性。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-11-26。
基金项目:国家自然科学基金项目(11274078).
作者简介:王飞(1989-),男,博士研究生;黄益旺(1975-),男,教授.
通讯作者:黄益旺,E-mail:huangyiwang@hrbeu.edu.cn
更新日期/Last Update: 2018-06-01