A Poly-phase Filter Structure Implemented by Using FPGA
JI Xunsheng · Journal of Nantong Institute of Technology · 2002
Accordingtothe signal processingcharaterisitics ofthe digitized filtering,the2-dimension decomposition forthe trunˉcated impulse response wave is made,and the poly-phase structure for the filter is derived By analyzing the poly-phase strucˉture,a simple and feasible structure implemented byFPGAis proposed,whichis based on the look-up table ofthe filter's coeffiˉcients.The structure has the advantages of simplicity in implementation and saving in hardware.The computer simulation results showthat the implementation method can meet the practical need.