The analysis and improvement of the FIR multiplication module
XU Wen-bo · Microcomputer Information · 2008
This paper introduces the theories and common implementation methods of digital filter. It presents a theory of Distributed Arithmetic (DA) which could realize the multiplication of constant coefficient efficiently,and introduces the method of FIR filter de-sign using look up table(LUT) based on FPGA. One improvement is realized in the design of the multiplication module to reduce er-rors. The design is validated with the simulated software. The simulation result shows that this technique has such advantages as less errors. Its performance is much better than the conventional methods’.