A new kind of array is proposed: 90 small rings are distributed at five concentric circles of different radii, where each small ring vibrates with parabolic velocity weighting.

• 摘要提出了一种新的基阵：将90个小圆环分布于半径不同的5个同心圆周上，对每个小圆环采用了抛物型的振速加权。