Computer simulation results show that the beamspace wsf algorithm retains the super performance of its element space counterpart when applied to the beam outputs of some practical acoustic - receiving array . 3 . an improved form of classical time domain broadband beamforming is proposed by combining digital delay lines and fir filters 提出了对经典时域宽带波束形成器的改进方法,采用数字延迟线和fir数字滤波器结合的方式实现时域波束形成,以消除波束畸变并实时实现结构特殊的空间频率响应。
百科解释
A digital delay line is a discrete element in digital filter theory, which allows a signal to be delayed by a number of samples. If the delay is an integer multiple of samples digital delay lines are often implemented as circular buffers.