Question

求LDPC码的matlab编解码仿真程序？

Answer 1

#include <iostream> #include <limits> #define LNODE 20 using namespace std; #include <malloc.h> #include <conio.h> typedef char **HuffmanCode; HuffmanCode HuffmanCoding(int n) { int i , f , start , j , count = 1; char *cd; HuffmanCode HC; HC = (HuffmanCode)malloc((n+1)* sizeof(char *)); cd = (char *)malloc(n*sizeof(char)); cd[n-1] = '\0'; for(i = 1 ; i <= n ; i++) { start = n - 1; for(j = 1 ; j <= count ; j++){ cd[--start] = '9'; } HC[i] = (char *)malloc((n-start)*sizeof( char)); strcpy(HC[i],&cd[start]); count++; } free(cd); return(HC); }//HuffmanCoding int main() { int k; int A[LNODE]; HuffmanCode q; q = HuffmanCoding(LNODE); for(k = 1 ; k <= LNODE ; k++) cout << *q[k] << " "; cout << "OK"; getch(); return 0; }