Abstract:As a kind of Finite Impulse Response(FIR) filters, pulse shaping FIR filter is implemented by Multiply-Accumulates(MACs), which performs convolution between input signal and unit pulse respond. Nevertheless, the convolution will cost a lot of MACs as the coefficient of filters increases. This will cause the shortage of Field Programmable Gate Array(FPGA) MACs, increase the system delay and device cost. According to group delay of pulse shaping FIR filter and base band modulated symbol character, a new implementation method for Pulse Shaping FIR filters based on Look-Up-Table(LUT) of FPGA is proposed. The results of software and hardware simulation demonstrate the method is area-efficient without any accuracy loss.