This method is used to suppress the grating lobe and increase the performance of multi-beam through designing the weights of multi-beam at elements level and subarray level, and each weight is optimized by genetic algorithm.
通过设计每个子阵内的阵元权系数和每个子阵的通道权系数来压制栅瓣,提高多波束性能。 各个权系数是通过遗传算法优化得到的。
参考来源 - 子阵级宽带数字多波束形成研究·2,447,543篇论文数据，部分数据来源于NoteExpress
因此，扫描角会增加同时栅瓣现象会减少。
Thus, the scan angle is increased and the grating lobe phenomenon is reduced.
如果阵元间距过大，最大扫描角会受到的栅瓣的限制。
If they are placed further apart, the maximum scan Angle is limited by grating lobes.
突破了单星雷达受天线基线长度的限制，具有更窄的波束宽度，但是会产生较多的孔径干涉栅瓣。
A long baseline with narrower beamwidth can also be provided by distributed space-based radars at the cost of appearing grating lobes.
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