卷积码编码程序的c语言实现

#include

using namespace std;

int table1[8]={1,2,4,8,16,32,64,128};

int myn=0;

int stalen=0;

int stan0[256][2]={0};//输入0时个状态的输出

int stan1[256][2]={0};//输入1时各状态的输出

int stachn[256][2]={0};//状态装换表

int myg1[10]={0};

int myg2[10]={0};

int myout[100]; //

int myoutsym=0;

void chartobits(char ch,int *bits);

char bitstochar(int *bits);

void convolution(void);

void creatsta(void);

void myinput(void);

int main(){

char exit_char;

myinput();

creatsta();

convolution();

cin>>exit_char;

}

void myinput(void){

int i,j;

cout<<"输入编码的约束长度N:(3

cin>>myn;

stalen=int(pow(2.0,myn-1));

cout<<"选择默认的编码矢量则输入1，输入2则可输入其他的编码矢量"<

cin>>i;

if(i==1){

switch(myn){

case 3:myg1[0]=1,myg1[1]=1,myg1[2]=1;

myg2[0]=1,myg2[1]=0,myg2[2]=1;

break;

case 4:myg1[0]=1,myg1[1]=1,myg1[2]=1,myg1[3]=1;

myg2[0]=1,myg2[1]=0,myg2[2]=1,myg2[3]=1;

break;

case 5:myg1[0]=1,myg1[1]=0,myg1[2]=1,myg1[3]=1,myg1[4]=1;

myg2[0]=1,myg2[1]=1,myg2[2]=0,myg2[3]=1,myg2[4]=1;

break;

case 6:myg1[0]=1,myg1[1]=0,myg1[2]=1,myg1[3]=1,myg1[4]=1,myg1[5]=1;

myg2[0]=1,myg2[1]=1,myg2[2]=0,myg2[3]=1,myg2[4]=0,myg2[5]=1;

break;

case 7: myg1[0]=1,myg1[1]=0,myg1[2]=0,myg1[3]=1,myg1[4]=1,myg1[5]=1,myg1[6]=1;

myg2[0]=1,myg2[1]=1,myg2[2]=0,myg2[3]=1,myg2[4]=1,myg2[5]=0,myg2[6]=1;

break;

case 8: myg1[0]=1,myg1[1]=0,myg1[2]=0,myg1[3]=1,myg1[4]=1,myg1[5]=1,myg1[6]=1,myg1[7]=1;

myg2[0]=1,myg2[1]=1,myg2[2]=1,myg2[3]=0,myg2[4]=0,myg2[5]=1,myg2[6]=0,myg2[7]=1;

break;

case 9: myg1[0]=1,myg1[1]=1,myg1[2]=0,myg1[3]=1,myg1[4]=0,myg1[5]=1,myg1[6]=1,myg1[7]=1,m yg1[8]=1;

myg2[0]=1,myg2[1]=0,myg2[2]=0,myg2[3]=0,myg2[4]=1,myg2[5]=1,myg2[6]=1,myg2[7]=0,m yg2[8]=1;

break;

}

}

else{

cout<<"输入g1"<

for(j=0;j

cin>>myg1[j];

cout<<"输入g2"<

for(j=0;j

cin>>myg2[j];

}

cout<<"连接矢量1为"<

for(j=0;j

cout<

cout<

cout<<"连接矢量2为"<

for(j=0;j

cout<

cout<

cout<<"stalen: "<

cout<

}

void creatsta(void){

int i,j,k,myi,myj;

int tembits[10];

for(i=0;i

stan1[i][0]=0;

stan1[i][1]=0;

stan0[i][0]=0;

stan0[i][1]=0;

stachn[i][0]=i/2;

myi=i;

for(j=0;j

if(myi>=pow(2.0,myn-1-j)){

tembits[j]=1;

myi=myi-pow(2.0,myn-1-j);

}

else{

tembits[j]=0;

}

}

/*for(k=0;k

cout<

cout<

for(k=0;k

stan0[i][0]+=myg1[k]*tembits[k];

stan0[i][1]+=myg2[k]*tembits[k];

}

stan0[i][0]=stan0[i][0]%2;

stan0[i][1]=stan0[i][1]%2;

myi=i+int(pow(2.0,myn-1));

stachn[i][1]=myi/2;

for(j=0;j

if(myi>=pow(2.0,myn-1-j)){

tembits[j]=1;

myi=myi-pow(2.0,myn-1-j);

}

else{

tembits[j]=0;

}

}

/*for(k=0;k

cout<

cout<

for(k=0;k

stan1[i][0]+=myg1[k]*tembits[k];

stan1[i][1]+=myg2[k]*tembits[k];