Simulation Study of FIR Filter Based on Matlab

Firstly, the rapid design of Digital FIR filter was completed by using the Signal Processing Toolbox FDATool, the designed filter deal with a compound signal by filtering, in order to prove whether the designed Filter contented filtering. MATLAB programs and Simulink model of the filter were used to verify the filter performance in MATLAB. Experimental results showed that the low-pass filter filtered the high frequency component from the mixed input signals. Comparison of the two kinds of simulation, the latter method was more convenient, quickly, and reduced the workload.