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信息與編碼理論課后習(xí)題答案-資料下載頁

2025-06-19 04:32本頁面
  

【正文】 01101111011001110110100000110100001000111101110111010101111011000110000101100100001011000100001100011100010101101110101001101101011111000001110010000010100111110101000011100110011101010100110001111101000000011001100101011100111111100100010100101100101111100000011110010101010001001100111000100101111011010011110000011011101011010011010000101111111001100110101000110000001010111100110111110101101011001110000001100110001010000100101100001100011101101010101011101100011111100001100010001010100011110111000010100110111101000100111001111001000010011000100101111100101111101100010000101110101110100000111110000101011001001000111010100100111011110011101001000111000101000100011011001010001011011111110100011111100001001001001101001000110101100001010110001101111111譯碼規(guī)則為若接收矢量在第i列出現(xiàn),則譯碼輸出為對應(yīng)列中的碼字,也就是陪集首為可糾正錯誤圖樣.伴隨式譯碼表為伴隨式陪集首00000000000011100000011101000001010110000100000100010000010001000001000100000100010000001010000001111000000101011000010010101001000100110100001111110000011001100100011101110000(4) 接收矢量R=1010101出現(xiàn)在標(biāo)準(zhǔn)譯碼表的第五列, 譯碼輸出為1011100, 錯誤圖樣為0001001.(5) 該碼標(biāo)準(zhǔn)譯碼表的陪集首重量分布為A0=1,A1=7,A2=7,A3=1,A4=A5=A6=A7=0所以正確譯碼概率pc為注意:i=0(6) 該碼的重量分布為A0=1,A1=A2=A3=0,A4=7,A5=A6=A7=0所以該碼在BSC中傳輸?shù)穆z概率Pud為注意:i=124
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