本文阐明了弧形杂乱回波现象的两个起因:天线稳态旁瓣会在PPI上引起光点较大但角度范围较小的杂乱回波
而端馈天线在脉冲信号激励下的瞬变过程则会引起光点较小但角度范围较大的杂乱回波。
It is shown that the arched-clutter phenomenon is caused by two factors: the antenna steady-state sidelobes can cause the clutter of larger spots on the PPI in a narrower angular region
and the transient process in the end-fed antenna excited with a pulse signal can cause the clutter of smaller spots in a wider angular region.
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