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.
当期望信号的波达方向存在不确定时，自适应波束成形器会遭受严重的性能衰减。
However, in concrete application, there exist errors between the real and ideal signal environment, which can cause performance degradation in adaptive beam pattern.
然而，在具体应用中，实际信号环境和理想信号环境之间存在误差，会造成自适应波束性能下降。
However, in concrete application, there exist errors between the real and ideal signal environment, which can cause performance degradation in adaptive beam pattern.
然而，在具体应用中，实际信号环境和理想信号环境之间存在误差，会造成自适应波束性能下降。
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