The computational complexity of beam space beamformers is reduced through reducing the number of degrees of freedom compared with the traditional element space beamformers.
同传统的阵元空间波束合成器相比，波束空间波束合成器通过减少自由度来实现运算量的减少。
2
The adaptive beamformers often suffer severe performance degradation when there is a mismatch between the actual and presumed direction-of-arrival(DOA) of the desired signal.