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For the lowpass filter example above, you have a choice of two FIR and four IIR digital filter designs.
对于上面的例子提及的低通滤波器，你可以选择两种FIR和四种IIR数字滤波器进行设计。
This paper presented a novel combinatorial non-periodic defected ground structure (CNPDGS) and its application in the lowpass filter.
即缺陷接地结构，它是近年来提出的一种在微波平面电路接地版上刻蚀出非周期形状的结构。
The lowpass filter in the CCD readout circuit inevitably results in information distortion of pixel crosstalk while improving the system signal-to-noise.
CCD读出电路中低通滤波器在改善系统输出信噪比的同时，不可避免地会产生像素串扰，造成信息畸变。
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