翻译c语言写的fir滤波器.doc

翻译c语言写的fir滤波器请会的帮我把没行的注释写上。谢谢#include#include#definetrue1#definefalse0#definen8#definebufsize100/*thebuffersizeis100*/*globaldeclarations*/intin_bufferbufsize;/*processingdatabuffers*/intout_bufferbufsize;/*functions*/staticintprocessing(int*input,int*output);staticvoiddataio(void);staticlonground(longa);voidmain()int*input=&in_buffer0;int*output=&out_buffer0;puts(the1stexperimentstartedn);/*loopforever*/while(true)/*readinputdatausingaprobe-pointconnectedtoahostfile.*writeoutputdatatoagraphconnectedthroughaprobe-point.*/readtheinputsignal./iftheinputfileissine1.dat,thesignalcontains300hz,400hzand500hz./iftheinputfileissine2.dat,thesignalcontains100hz,400hzand500hz./thesamplingfrequencyis1200hz.dataio();/*removethefrequencycompomentof400hzand500hz*/ processing(input,output); /writetheoutputsignal. /theoutputfileisresult.dat. dataio();/*=processing=*function:applyalow-passfirfiltertoinputsignalandremovethefrequencyhigherthan350hz.*parameters:addressofinputandoutputbuffers.*returnvalue:true.*/staticintprocessing(int*input,int*output)inti,size=bufsize;shortxx0,x,y;/shortzn=0,0,0,0,0,0,0,0,0;shortzn=0,0,0,0,0,0,0,0;/shortw2*n+1=22,356,155,990,466,220,777,216,777,26,466,9,155,0,22;/shortw2*n+1=6,457,56,1024,224,418,523,382,784,99,784,43,523;/shortw2*n+1=330*2,3299*2,1982*2,6867*2,4955*2,1594*2,6607*2,1065*2,4955*2,109*2,1982*2,17*2,330*2;/shortw2*n+1=661,6598,3964,13733,9910,3187,13214,2131,9910,217,3964,34,661;/shortw2*n+1=58,5628,526,8192,2105,5883,4913,3829,7369,1543,7369,504,4913,102,2105,14,526,1,58;/shortw2*n+1=28,4432,280,8192,1259,4883,3356,3975,5873,1509,7048,644,5873,142,3356,30,1259,3,280,0,28;/shortw2*n+1=26,651,182,1024,545,421,909,247,909,51,545,11,182,1,26;/shortw2*n+1=831,20846,5815,32768,17445,13486,29075,7888,29075,1647,17445,349,5815,21,831;/shortw2*n+1=208,5211,1454,8192,4361,3371,7269,1972,7269,412,4361,87,1454,5,208;shortw2*n+1=101,4356,810,8192,2835,3403,5670,2517,7088,605,5670,193,2835,21,810;/shortw2*n+1=101,4356,810,8192,2835,3403,5670,2517,7088,605,5670,193,2835,21,810,2,101;/shortw2*n+1=50,3814,454,8192,1815,3504,4235*,3084,6353,831,6353,349,4235,50,1815,8,454,0,50;longy0,z0;/22222222222222while(size-)xx0=*input+;x=xx0*6;z0=(long)x15;y0=0;for(i=0;i15);y0=round(y0);for(i=n-1;i0;i-)zi=zi-1;z0=round(z0);z0=(short)(z015);y=(short)(y015);*output+=y;/*additionalprocessingload*/ return(true);/*=dataio=*function:readinputsignalandwriteprocessedoutputsignal.*par