Performance of FIR digital filter based on FPGA
Huang Guang-ming · Electronic Design Engineering · 2011
Currently FIR filter design method is complicated and the development cycle is long,if the design of FIR filter uses IP core which designed already,the development efficiency will be greatly improved.This paper bases on Altera Corporation's Cyclone II series EP2C8Q208C8N chip,gets coefficients of FIR filter by MATLAB the filter function fir2 and import the coefficients into FIR IP Core to complete the FIR filter's design.And the paper has analyzed uneven sampled data and filter order which had impact on the performance of FPGA generate FIR digital filter.This paper uses the amplitude-frequency characteristic curve which we need compares actual output's amplitude-frequency characteristic curve,try to test the FIR bandpass filter's performance.