FIR Filter of DS-CDMA UWB Modem Transmitter
K.-M. KANG, S.-I. CHO, Hui-Chul Won, Seong Soo Choi · IEICE Transactions on Communications · 2008
This letter presents low-complexity digital pulse shaping filter structures of a direct sequence code division multiple access (DS-CDMA) ultra wide-band (UWB) modem transmitter with a ternary spreading code. The proposed finite impulse response (FIR) filter structures using a look-up table (LUT) have the effect of saving the amount of memory by about 50% to 80% in comparison to the conventional FIR filter structures, and consequently are suitable for a high-speed parallel data process.