표 2. | Table 2. FIR 필터 설계 파라미터 | FIR filter design parameter.

Parameter Meaning Setting
fs(=N, FFT size) Sampling frequency 4,000
f p a s s = M 2 , half of sub-carriers) Normalized passband frequency 667
fstop Normalized stopband frequency 707
δpass Pass-band ripple 0.001 dB
δstop Stop-band ripple 60 dB