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机构地区:[1]中国人民解放军91388部队
出 处:《舰船科学技术》2015年第9期121-126,共6页Ship Science and Technology
摘 要:研究浅海水平固定阵阵形对匹配场定位性能的影响,为浅海水平固定阵的阵形布放提供理论参考。以浅海声传播模型为基础,推导直线阵、L形阵和U形阵线性匹配场处理器模型,分析水平直线阵、L形阵、U形阵的定位性能,揭示阵形与匹配场定位性能之间的内在规律。结果表明,直线阵的定位性能对目标方位更敏感,在法线方向上定位性能最佳,端射方向上定位性能最差;L形阵定位对方位的变化更稳健,但在90°方位附近性能不如直线阵;而U形阵由于存在空间重复采样,性能不如L形阵。In order to provide theoretical support for choice of horizontal hydrophone array shape in shallow water,localization performance of different horizontal hydrophone array shape for matched field processing( MFP) is studied. Based on acoustic propagative model in shallow water,Bartlett model of MFP is deduced for array of beeline,L and U. The localization performance of them is analysed,and regular pattern between shape of array and localization performance is explained. As a result,array of beeline is most sensitive to direction,the localization performance is best in the normal direction,and worst in the tangent direction. Array of L is more stable for direction of target,but worse than array of beeline in the normal direction. Because of reiteration for space sampling,localization performance of array of U is worse than array of L.
分 类 号:TB566[交通运输工程—水声工程]
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