A Baseband Shaping Filter Implemented with FPGA
Jianxin Wang · Telecommunication Engineering · 2001
According to the signal processing characteristics of the digitized baseband shaping, the 2-dimension decomposition for the truncated baseband sequence is made, and the poly-phase structure for the shaping filter is derived. By analyzing the poly-phase structure, a simple and feasible structure implemented with FPGA is proposed, which is based on the look-up table of the filter's coefficients. The structure has the advantages of simplicity in implementation and saving resource in hardware. The computer simulation results show that the implementation method can meet the practical need.