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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。
This article illustrates two causes of arcuate clutter echo: steady-state sidelobes of the antenna cause spurious echoes of larger spot but less angular range on the PPI, while transients of the fed-in antenna under pulsed excitation The process causes spurious echoes with a smaller spot but a wider range of angles.