The integrand includes a multiplying factor of the vertical directivity of the noise intensity and the layered ocean environment affects the spatial coherences via this directivity factor .

积分式中的被积函数包含一噪声强度 垂直 指向 性因子，海洋介质分层条件通过该指向性因子影响噪声场的空间相干。

Spatial correlation and vertical directivity of surface-generated noise in the sea

海面噪声的空间相关与 垂直 方向 性理论

A source embedded in a vertically installed cylinder of the low-refractive medium ( n < 1 ) will be concentrated in a narrow cone in the vertical plane and maintain its omni directivity in the horizontal plane .

当点源置于竖直放置的圆柱形低折射率介质（n<1）中时，其射线在 竖直面会产生会聚特性而在水平面仍保持全向 特性。

Simulation of Vertical Directivity of Hydrophone Triplets Towed Line Sonar by the Optimal Array Processing

三元组拖线阵声纳 垂直 指向 性最佳阵处理仿真

Calculation and analysis of vertical directivity function for inclined planar antenna

倾斜式板状天线 垂直 方向 性 · 论文 ·函数的建立与讨论

The vertical distribution and directivity of ambient noise calculated by PE method in a wedge-shaped bottom

PE法计算楔形海底环境噪声 垂直分布和 指向 性

For vertical strike-slip faults the rupture directivity effect causes as strong spatial variation in ground motions for a given closest distance to the fault .

对于 垂直走滑断层，在给定的距断层最近的范围内，破裂 方向效应使地震动产生强烈的空间变化。