文章摘要
翟春平,刘雨东.聚焦波束形成声图法误差分析[J].声学技术,2008,(1):18~24
聚焦波束形成声图法误差分析
Error analysis of the underwater imaging method using focused beamforming
投稿时间:2007-05-29  修订日期:2007-09-20
DOI:
中文关键词: 声图  聚焦波束形成  被动定位  聚焦峰尺度
英文关键词: Underwater image  focused beamforming  passive localization  focusing apex scale
基金项目:
作者单位E-mail
翟春平 大连测控技术研究所 大连67号信箱, 大连, 116013 cp_cn@163.com 
刘雨东 大连测控技术研究所 大连67号信箱, 大连, 116013  
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中文摘要:
      聚集波束形成声图测量方法可以实现近场目标的被动定位,利用该方法接收数据或进行数据处理的过程中必定会有各种误差产生,本文从聚焦峰尺度、阵元偏差、波长等方面对聚焦波束形成声图测量方法的影响进行了分析,经仿真研究与实验数据分析可以得出聚焦波束形成声图法受距离与波长的影响较大,但对于阵元的位置要求不高,利用该方法可以实现近程目标的高精度定位。
英文摘要:
      The method of measuring underwater image by focused beamforming can be used for passive localization in short range.It is sure that many kinds of errors exist in the process of receiving data or carrying out data processing with this method.From the analysis of focusing apex scale,the influences of array element deviation,distance and wavelength on the underwater imaging method using focused beamforming are discussed in this paper.Simulation study and experimental data analysis indicate that the locating precision of this imaging method is sensitive to distance and wavelength,but not so to the array element position.Therefore the focused beam-forming technique can realize high precision localization in short range.
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