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郭琦, 邓肖丹, 李学砚, 栾晓东, 李萌, 李冰, 谢民英, 范正一

Design of a digital filter for optically pumped helium magnetometers

GUO Qi, DENG Xiao-Dan, LI Xue-Yan, LUAN Xiao-Dong, LI Meng, LI Bing, XIE Min-Ying, FAN Zheng-Yi

图8 4级128倍抽取CIC滤波器归一化幅频特性

Fig.8 Normalized amplitude frequency characteristics of 4-stage CIC 128 times decimation filter