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標題: RS編碼解碼的各種函數 MATLAB代碼 [打印本頁]
作者: 15281727812    時間: 2017-6-18 20:17
標題: RS編碼解碼的各種函數 MATLAB代碼
RS編碼解碼的各種函數 及主函數   MATLAB代碼


MATLAB源程序如下:
  1. % realize a (31,25) RS encoding & decoding in GF(2^5)
  2. % primitive polynomial in GF(2^5):  a^5=a^2+1
  3. % generator polynomial g(x)=(x+a)(x+a^2)(x+a^3)(x+a^4)(x+a^5)(x+a^6)
  4. % codeword length N=31
  5. % information sequence length k=25
  6. % maximum number of error-correcting t=3

  8. % the table convert the powers of a to a decimal number
  9. T=[1,2,4,8,16,5,10,20,13,26,17,7,14,28,29,31,27,19,3,6,12,24,21,15,30,25,23,11,22,9,18];

  11. % the input information sequence
  12. disp('輸入信息序列：')
  13. m_xi=1:25
  14. % press any key to continue, to view the results clearly
  15. disp('Press any key to continue...')
  16. pause
  17. % sequence after encoding
  18. disp('編碼輸出序列（發送序列）：')
  19. t_x=rs_encode(m_xi)

  21. disp('Press any key to continue...')
  22. pause
  23. % press any key to continue
  24. disp('信道產生的錯誤位置：')
  25. sitegen=[0 5 30]
  26. disp('信道產生的錯誤數值：')
  27. valuegen=[5 3 7]
  28. num=length(valuegen);
  29. disp('Press any key to continue...')
  30. pause
  31. % press any key to continue
  32. % sequence received after channel
  33. disp('接收序列')
  34. r_x=rs_channel(t_x,num,sitegen,valuegen)
  35. disp('Press any key to continue...')
  36. pause
  37. % press any key to continue
  38. % sequence after decoding
  39. m_xo=rs_decoder(r_x)
  40. disp('Done!')
復制代碼

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RS.rar (6.81 KB, 下載次數: 69)







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