| 并列式多入多出声纳宽带高分辨波束形成方法 |
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| 引用本文： | 杨光,王福钋,李淑秋,张祥.并列式多入多出声纳宽带高分辨波束形成方法[J].应用声学,2011,30(2):131-137. |
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| 作者姓名： | 杨光 王福钋 李淑秋 张祥 |
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| 作者单位： | 中国科学院声学研究所综合声纳技术实验室,北京,100190 |
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| 摘 要： | 并列式多入多出(Multiple-Input Multiple-Output,MIMO)声纳可以通过高分辨波束形成方法进一步提高方位分辨能力。本文通过对窄带方法的扩展,提出一种宽带高分辨波束形成的方法,数值仿真分析了该方法的性能,并通过湖试数据进行了验证。结果表明,该方法可以对并列式MIMO声纳进行宽带高分辨波束形成,高信噪比情况下可以得到较高的方位分辨能力,但方位分辨力随信噪比减小下降较快,且运算量远大于常规波束形成方法,在运算能力满足要求且信噪比较高时,用本方法可显著提高系统的方位分辨性能。
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| 关 键 词： | 并列式MIMO声纳 波束形成 导向最小方差法 |
A broadband high-resolution beam forming method for collocated multiple-input multiple-output sonars |
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| YANG Guang,WANG Fu-pu,LI Shuqiu and ZHANG Xiang.A broadband high-resolution beam forming method for collocated multiple-input multiple-output sonars[J].Applied Acoustics,2011,30(2):131-137. |
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| Authors: | YANG Guang WANG Fu-pu LI Shuqiu and ZHANG Xiang |
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| Institution: | YANG Guang WANG Fupo LI Shuqiu ZHANG Xiang (The Lab of Oceanic Information Technology,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190) |
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| Abstract: | A high steering resolution can be obtained by using the high-resolution beam forming method for collocated multiple-input multiple-output(MIMO) sonar.Based on narrow-band methods,a broadband high-resolution beam forming method is proposed.The performance of the method is analyzed with numerical simulation,and is validated with lake experiments.The results show that the broadband high-resolution beam forming method is effective to the collocated MIMO sonar and a high steering resolution is achieved in high s... |
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| Keywords: | Collocated MIMO sonar Beam forming Steered minimum variance |
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