This paper give an example to design and simulate FIR low pass filter with VHDL and MATLAB application combining, and points out VHDL and MATLAB are both powerful tools in Digital filter design.

• 本文基于MATLAB和VHDL的应用结合，通过实例实现FIR低通滤波器的设计和仿真，指出MATLAB和VHDL是数字滤波器设计的两项强有力设计工具。