Computer Design and FPGA Implementation of High-order FIR Filter
Chang Jian-ping · Modern Electronics Technique · 2011
According to the FIR(finite impulse response) digital filter theory,a design method of FIR filter with macro parameter modules in Quartus Ⅱ is put forward in combination with Matlab and FPGA′s Quartus Ⅱ computer softwares.Firstly,filter coefficients are designed with Matlab,and then adders and multipliers are constructed with macro parameter modules in Quartus Ⅱ to obtain the filter results.Compared to distributed algorithms,signal processing rate is not demanded critically,and in the case of higher order filter,this method is more simple to achieve the filtering effect.Eventually on the basis of Matlab and Quartus Ⅱ,the design and simulation of a 64-order FIR digitle filtering circuit is realized.