A FAMILY OF PULSE-SHAPING FILTERS WITH ISI-FREE MATCHED AND UNMATCHEDFILTER PROPERTIES

The raised-cosine pulse-shaping filter plays an important role in digi tal communications due to its intersymbol interference (ISI)-free prop erty. The ISI-free property holds after matched filtering is performed . In this letter, we propose a new family of pulse-shaping filters. Th ese filters are ISI free with or without matched filtering. Using thes e new pulse-shaping filters, the computational load, and therefore the hardware cost in demodulation for modem design, might be reduced in s ome applications.