[单选题]加法滤波器(积分滤波器)的差分方程为:y(n)=x(n)+x(n-1)+x(n-2)。若采样频率600Hz,可以滤除( ),滤波器的时延为( )。(每题0.5分)(0.5)
发布时间:2025-12-01
A.直流信号;10/3ms
B.四次谐波; 10/3ms
C.六次谐波;5ms
D.四次谐波;5ms
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