In
electronics and
telecommunications,
pulse shaping is the process of changing the waveform of transmitted pulses. Its purpose is to make the transmitted signal better suited to its purpose or the
communication channel, typically by limiting the effective
bandwidth of the transmission. By filtering the transmitted pulses this way, the
intersymbol interference caused by the channel can be kept in control. In RF communication, pulse shaping is essential for making the signal fit in its frequency band.