Design and Implementation of DDA Interpolator Algorithm Based on FPGA

A method of DDA interpolation algorithm based on field programmable gate array(FPGA) is presented.The algorithm described by Verilog hardware describe language(HDL),compiled,synthesized and downloaded with QuartusⅡ,which is implemented in a FPGA chip in series of Cyclone from Altera company.The state-machine,program flow chart and the simulation results are also presented.The DDA algorithm running on FPGA chip has the advantages of high speed and excellent anti-disturb capability,and the DDA algorithm designed by Verilog HDL based on IP core can be used repeatedly so as to improve the design efficiency.