The last 4 times decimation was achieved by two half band filters and a droop FIR.

剩余4倍抽取采用两级半带滤波器和升幅FIR实现。

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Then according to the request of down-speed signals processing, the extraction scheme and the detailed half band filter design are provided.

然后根据降速率信号处理的要求，给出了本文所使用的抽取方案以及具体的半带滤波器设计。

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The converter USES a high order MASH noise shaping technique and a digital decimation filtering part consisting of comb filters and cascade of half band filters.

该转换器采用了高阶MASH噪声成形技术，而其数字抽取滤波部分则由梳状滤波器与级联的半带滤波器构成。

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My old management got half and the band split the rest.

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