Creation of a pulse shaping filter
psf = psfilter_init('none', osf) psf = psfilter_init('nrz', osf) psf = psfilter_init('srrc', osf, ntaps, roll_off) psf = psfilter_init('rc', osf, ntaps, roll_off) psf = psfilter_init('gaussian', osf, ntaps, BT)
Over-Sampling Factor (number of samples by symbol)
Number of taps of the FIR filter approximation
Roll-off factor (for RC / SRRC filters)
Bandwidth-time product (for gaussian filter)