This paper proposes a general model of sound scattering and directivitypattern for a vector sensor located on a complicated reflecting boundary.
利用边界元方法，在不规则障板边界条件下，对矢量传感器的散射声场进行了计算，得出了传感器的指向性图。
2
This paper analyses the pattern function of DBF in subarray. The designing method for directivitypattern is given and the condition of producing the grating lobe is discussed.
详细分析了由子阵构成的DBF的方向性函数特性，给出了方向图的设计方法，并讨论了其栅瓣产生的条件。
3
The rupture directivity effect is due to rupture propagation and radiation pattern effects.