【作者】 诸洁琪； 陈伏虎； 孔强；

【Author】 ZHU Jie-qi;CHEN Fu-hu;KONG Qiang;Hangzhou Applied Acoustic Research Institute;

【机构】 杭州应用声学研究所；

【摘要】 直线阵具有广泛的用途,如拖曳线列阵声纳、部分舷侧阵声纳、岸基声纳等均用到了直线阵的布阵方式。本文提出了一种基于栅瓣抑制的大孔径直线阵稀疏布阵方法,通过对不同稀疏等间距线阵进行组合的方法抑制栅瓣,形成低旁瓣稀疏布阵,经仿真验证,该稀疏布阵方法效果良好,波束宽度和最大旁瓣不变的情况下有效降低阵元数,并提高工作频率上限。更多还原

【Abstract】 Linear array has a wide range applications,such as Towed Sonar,Flank Sonar,Shore Sonar and so on.This paper presents a sparse method for large aperture linear array with grating lobe suppression,which combines different sparse linear arrays to suppress the grating lobes and form a low sidelobe sparse array.Through simulation,this sparse array method works well,the number of elements can be effectively reduced and the working frequency band upper limit can increased,under the condition of beam width and maximum side lobes unchanged.更多还原