Constant directivity beamforming is a useful technique for special filtering in broadband signal environment, but the size of the array is related to the lowest frequency of the operation.

• 在宽带信号环境下,恒定指向性波束形成是一种非常有用的技术。但是阵列的尺寸与最低的操作频率有关,因此,对于低频信号不适合用恒定指向性波束形成技术。