dsp課程設(shè)計(jì)--有限沖擊響應(yīng)fir濾波器的設(shè)計(jì)(編輯修改稿)
2025-02-12 04:52 本頁面
【文章內(nèi)容簡(jiǎn)介】 mov t0,*ar0 retc文件include include define signal_1_f 200define signal_2_f 620define signal_sample_f 2000define pi define coff_L 23define bufer_L 256int data_in[bufer_L]。int out[bufer_L] 。int firout。int x[coff_L+1]。int k=0。int bufer=bufer_L。extern int fir(int *,int)。extern int init(int *,int)。extern int outdata(int *,int,int)。void inputwave()。void main(){inputwave()。init(x,BL)。while(1){x[0]=data_in[k]。firout=fir(x,BL)。outdata(out,firout,bufer)。k++。if(k=bufer_L){k=0。}}}void inputwave(){float wt1。float wt2。int i。for(i=0。i=bufer_L。i++){wt1=2*pi*i*signal_1_f。wt1=wt1/signal_sample_f。wt2=2*pi*i*signal_2_f。wt2=wt2/signal_sample_f。data_in[i]=(cos(wt1)+cos(wt2))/2*32768。}
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