| 阵形畸变对双线阵左右舷分辨的影响及其纠正 |
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| 引用本文： | 陈新华,郑根武,余华兵.阵形畸变对双线阵左右舷分辨的影响及其纠正[J].应用声学,2009,28(2):103-106. |
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| 作者姓名： | 陈新华 郑根武 余华兵 |
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| 作者单位： | 1. 中国科学院声学研究所,北京,100190
2. 南京化工职业技术学院,南京,210048 |
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| 摘 要： | 双线阵左右舷分辨是利用两个单线阵的波束输出信号进行时延估计,根据时延值的符号判断目标所处的左右舷。当双线阵发生畸变时,特定情况下左右舷结果发生变化。本文对该现象进行了分析,并同时给出了一种修正补偿方法。最后通过对试验数据的处理证明了方法的有效性。
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| 关 键 词： | 双线阵 左右舷目标分辨 阵形畸变 延时估计 |
Effect of shape distortion on left-right discrimination of towed twin-line array and its correction |
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| CHEN Xin-Hu,ZHENG Gen-Wu and YU Hua-Bing.Effect of shape distortion on left-right discrimination of towed twin-line array and its correction[J].Applied Acoustics,2009,28(2):103-106. |
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| Authors: | CHEN Xin-Hu ZHENG Gen-Wu and YU Hua-Bing |
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| Institution: | CHEN Xin-Hua ZHENG Gen-Wu YU Hua-Bing (1 Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190) (2 Nanjing Vocational Institute of Chemical Engineering,Nanjing 210048) |
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| Abstract: | Left-right discrimination of towed twin-line array is realized by discernment of the sign of time-delay value,which is the time diffence of the beaming output signal of two line arrays.As the shape of twin-line array is distorted,the left-right deciding ability can be deformed in special condition.The phenomena is analysed and a correcting method is presented.Experimental results prove that the method is effective. |
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| Keywords: | Twin-line array Left/right target identification Array shape distortion Time-delay estimation |
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