Design of FIR Filter Based on FPGA

In the signal processing system, a large amount of noise is often superimposed in the process of signal superposition, and the function of filter is to filter out the superposition noise in the signal. In the field of filter applications, FIR filters are widely used in signal processing from the perspective of filter stability and linear correlation characteristics. This paper introduces the principle and application characteristics of FIR filter, takes FPGA as the control core, designs FIR bandpass filter, and uses verilog HDL language to encode and implement, by comparing QuestaSim simulation results and MATLAB data processing results, to determine the correct implementation of the bandpass filter.