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| 论文题目 |
阵形畸变对拖曳双线阵左右舷分辨性能的影响 |
| 论文题目（英文） |
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| 作者 |
张宾 |
| 发表年度 |
2008 |
| 卷 |
33 |
| 期 |
4 |
| 页码 |
294 |
| 期刊名称 |
声学学报 |
| 摘要 |
分析了阵形畸变对拖曳双线阵左右舷分辨性能的影响。首先由双线阵指向性函数及左右舷抑制比公式，推导并定义了双线阵声呐实现左右舷分辨的两个关键参量——特征方位和特征频率。然后在引入阵形畸变量的基础上，利用阵形畸变时的左右舷抑制比公式，进一步推导得到特征方位及特征频率关于阵形畸变量的解析关系式。理论分析、仿真结果以及海上试验数据都表明，阵形畸变会改变特征方位和特征频率，造成拖曳双线阵左右舷分辨性能下降甚至再次产生左右舷模糊。
PACS数： 43．60，43．30 |
| 摘要_英文 |
Ect of the distortion upon leright discrimination of towed twin-line amy were aⅡalyzed． Two key parameters，the characterktic beafing and dlaracteristic frequency，、Ⅳere derived and dened according to the directivity and the gain of left／right suppreion of twin-line array，which determine the performance of left／right discrimination of t，edtwin—line a11ray． A shape distortion variable wcalled to formulate the left／right suppreion ratio under shape distortion，and the fhnctional relationship between the key parameters and the shape distortion variable westablished． Theoretical analysis and simulation re8ults reveal that the characteristic bearing and chauracteritic fhquency are deViated fm originallocation under shape distortion，resulting in the performance degradation of the
sonaf lerightdiscrimina上ion，and even woe bearing albility would appear again．And the sea trial data vermed
this． |
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