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。
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.
为改进卫星天线控制器的跟踪技术，提出一种基于电子波束成形的跟踪子系统改进方法。
To enhance the tracking technology of satellitic antenna controller, the article introduces a improving method based on electronic beam forming.
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