文章摘要
孙超,刘雄厚.MIMO声纳:概念与技术特点探讨[J].声学技术,2012,(2):117~124
MIMO声纳:概念与技术特点探讨
MIMO sonar: concept and technical characteristic discuss
投稿时间:2012-01-05  修订日期:2012-02-20
DOI:
中文关键词: 多输入多输出(MIMO)声纳  密集式MIMO声纳  分布式MIMO声纳
英文关键词: Multiple-Input Multiple-Output(MIMO) sonar  MIMO sonar with co-located elements  MIMO sonar with widely separated elements
基金项目:西北工业大学博士论文创新基金(CX201101)
作者单位E-mail
孙超 西北工业大学声学工程研究所, 西安 710072 csun@nwpu.edu.cn 
刘雄厚 西北工业大学声学工程研究所, 西安 710072  
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中文摘要:
      对多输入多输出(Multiple-Input Multiple-Output,MIMO)声纳的概念和技术特点进行了分析。根据所采用的分集技术的不同,将MIMO声纳分为密集式MIMO声纳(采用波形分集)和分布式MIMO声纳(采用空间分集)。对密集式MIMO声纳的优点如自由度的增加、灵活的发射信号设计、自适应技术的直接使用和虚拟阵列等进行了介绍,并指出其发射阵增益损失对探测距离的限制。将分布式MIMO声纳分为发射/接收全分集的MIMO声纳和仅发射分集的MIMO声纳进行介绍,并认为这两种声纳可以并入多基地声纳的范畴。
英文摘要:
      The concept and technical characteristics of the multiple-input multiple-output(MIMO) sonar are discussed in this paper.According to different diversities(the waveform diversity and the spatial diversity) adopted in sonar systems,the MIMO sonar is divided into two kinds: the MIMO sonar with co-located elements(utilizing the waveform diversity) and the MIMO sonar with widely separated elements(utilizing the spatial diversity).For the former,the advantages,such as more degrees of freedom(DOFs),flexible transmitting signal design and direct applicability of adaptive array techniques,and the disadvantage such as the transmitting array gain loss are discussed.For the latter,it is further put into two types-the MIMO sonar with transmitting/receiving diversity and the MIMO sonar with transmitting diversity only.Both types of MIMO sonars with widely separated elements are discussed and related to the multi-static sonars in this paper.
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