Design of high-speed FIR digital filter based on FPGA

Realization of digital Finite-impulse-Response(FIR) filter are so important issue for digital communications and signal processing application.As its good line phase character,FIR filter can avoid phase distortion.The filter structure is based on Distributed Arithmetic(DA),which is able to calculate the inner product by shifting and accumulating of partial products and storing in look-up table.In this paper an FPGA-base system is presented..The simulation and experimental results verify that this strategy possess good time closure and less resource usage.