航空电磁时间域数据工频干扰研究与去除

黄威, 肖都, 贲放, 李军峰, 李飞, 胥值礼

Study and removal of power frequency interference in time-domain airborne electromagnetic data

HUANG Wei, XIAO Du, BEN Fang, LI Jun-Feng, LI Fei, XU Zhi-Li

图3 FIR和IIR梳状滤波器特性曲线 a—FIR型梳状滤波器幅频特征;b—IIR型梳状滤波器幅频特征

Fig.3 The characteristic curves of FIR and IIR comb filters a—the amplitude-frequency characteristics of FIR comb filter;b—the amplitude-frequency characteristics of IIR comb filter