A Method To Implement The FIR filter
Using FPGA Is Proposed
Abstract: This paper analyzes the situation of application and development of digital filter technology home and abroad，introduced the basic structure of digital filter, a software based on Matlab and Quartus Ⅱ digital filter design, completed the design of band-pass FIR filters, achieve bandwidth 100MHz, the minimum stop-band attenuation-35dB, passband ripple of less than 2dB of the parameter indexes. Paper, in-depth analysis of the filter system design features, principles and techniques to achieve the key, described the use of MATLAB for bandpass filter design and simulation of specific methods. Finally the whole design is described using VHDL, the simulation in Quartus Ⅱ. As a result FPGA, allows the filter to achieve simple structure, saving hardware resources, speed up the development schedule, Quartus Ⅱ compared with the Matlab simulation result shows the correctness of the design. Therefore, this design of FIR digital filter has better real-time, flexibility and practicality.
Keywords: FIR filter; FPGA; VHDL; Matlab; QuartusⅡ simulation
