I design a low pass Equiriple Fir filter with 3 dB of ripple in the pass-band from 0 to 64 Hz and at least 60 dB of attenuation in the stop-band. I want to know the correct passband frequency and stopband frequency I choose here the passband frequency 0.45π and stopband frequency 0.5π
and with this the passband frequency 0.45π and stopband frequency 0.49π
and here the passband frequency 0.49π and stopband frequency 0.5π
Can anyone help me to choose the right one?
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