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요약정보
多波束声呐声学参数校准系统设计 / Calibration system design for acoustical indexes of multi-beam sonar
Resource Type
Academic Journal
Authors
韩鸿胜
;
柳义成
;
窦春晖
;
陈允约
;
HAN Hong-sheng
;
LIU Yi-cheng
;
DOU Chun-hui
;
CHEN Yun-yue
Source
水道港口 / Journal of Waterway and Harbor
. 40(4):464-470
Subject
多波束声呐
声学参数
计量校准
不确定度评定
Language
Chinese
ISSN
1005-8443
Online Access
Find it @ DONGA
초록
依据水声计量测试原理与方法,设计了一套多波束声呐声学关键参数的计量校准系统.利用多维运行控制装置,在消声水池中对多波束声呐进行了声源级、工作频率、波束宽度、脉冲宽度等声学指标的校准.阐述了校准系统的主要组成、计量器具控制和校准方法.实现了在等效自由场、远场中对水下声呐换能器位置的精确控制、声信号采集与分析等功能.通过不确定度评定,给出了该校准系统工作频率、波束宽度测量结果的扩展不确定度.通过参考值与标称值比对,求得被检多波束声呐声源级误差小于0.7 dB,工作频率误差小于0.03%,脉宽误差小于2%,波束宽度误差小于10%.
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