{"id":90970,"date":"2024-04-10T11:00:32","date_gmt":"2024-04-10T03:00:32","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=90970"},"modified":"2024-04-10T11:00:36","modified_gmt":"2024-04-10T03:00:36","slug":"fqxjcyl","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/90970.html","title":{"rendered":"FEC\u524d\u5411\u7ea0\u9519\u539f\u7406"},"content":{"rendered":"\n

\u3000\u3000\u524d\u5411\u7ea0\u9519<\/a>(FEC)\u6280\u672f<\/strong>\u662f\u4e00\u79cd\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7528\u4e8e\u63d0\u9ad8\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u7684\u7f16\u7801\u548c\u89e3\u7801\u6280\u672f\u3002\u5176\u57fa\u672c\u539f\u7406\u662f\u5728\u53d1\u9001\u7aef\u5bf9\u6570\u636e\u8fdb\u884c\u7f16\u7801\uff0c\u901a\u8fc7\u6dfb\u52a0\u5197\u4f59\u4fe1\u606f\u6765\u589e\u52a0\u63a5\u6536\u7aef\u7684\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\u80fd\u529b\u3002\u8fd9\u6837\uff0c\u5373\u4f7f\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4e86\u4e00\u4e9b\u9519\u8bef\uff0c\u63a5\u6536\u7aef\u4e5f\u80fd\u591f\u5229\u7528\u8fd9\u4e9b\u5197\u4f59\u4fe1\u606f\u6765\u6062\u590d\u539f\u59cb\u6570\u636e\uff0c\u4ece\u800c\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000FEC\u6280\u672f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u8fdb\u884c\u5b9e\u73b0\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u91cd\u590d\u7801\u3001\u6d77\u660e\u7801\u3001RS\u7801\u7b49\u3002\u91cd\u590d\u7801\u662f\u901a\u8fc7\u5c06\u540c\u4e00\u6570\u636e\u91cd\u590d\u591a\u6b21\u53d1\u9001\uff0c\u7136\u540e\u5728\u63a5\u6536\u7aef\u6839\u636e\u5c11\u6570\u670d\u4ece\u591a\u6570\u7684\u539f\u5219\u8fdb\u884c\u8bd1\u7801\u6765\u5b9e\u73b0\u7ea0\u9519\u7684\u3002\u800c\u6d77\u660e\u7801\u3001RS\u7801\u7b49\u5219\u662f\u57fa\u4e8e\u6570\u5b66\u8fd0\u7b97\u548c\u7ea0\u9519\u7b97\u6cd5\u6765\u8bbe\u8ba1\u7684\uff0c\u5b83\u4eec\u901a\u8fc7\u5728\u53d1\u9001\u7aef\u5bf9\u6570\u636e\u8fdb\u884c\u7279\u5b9a\u7684\u7f16\u7801\u5904\u7406\uff0c\u5e76\u6dfb\u52a0\u5197\u4f59\u6570\u636e\uff0c\u4f7f\u5f97\u63a5\u6536\u7aef\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u5197\u4f59\u6570\u636e\u8fdb\u884c\u6709\u6548\u7684\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\u3002<\/p>\n\n\n\n

\u3000\u3000\u6b64\u5916\uff0cFEC\u6280\u672f\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u70b9\u662f\u5b83\u4e0d\u9700\u8981\u53cd\u9988\u673a\u5236\uff0c\u8fd9\u4f7f\u5f97\u5b83\u5177\u6709\u8f83\u4f4e\u7684\u5ef6\u8fdf\u548c\u8f83\u9ad8\u7684\u5b9e\u65f6\u6027\u3002\u4e0e\u4f20\u7edf\u7684\u7ea0\u9519\u65b9\u6cd5\u76f8\u6bd4\uff0cFEC\u80fd\u591f\u5728\u4e0d\u727a\u7272\u6027\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u6709\u6548\u964d\u4f4e\u63a5\u6536\u4fe1\u53f7\u7684\u8bef\u7801\u7387(BER)\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000FEC\u6280\u672f\u5e7f\u6cdb\u5e94\u7528\u4e8e\u4fe1\u606f\u5904\u7406\u7684\u5404\u4e2a\u9886\u57df\uff0c\u5982\u8ba1\u7b97\u673a\u7f51\u7edc\u3001\u97f3\u89c6\u9891\u4f20\u8f93\u3001\u5149\u901a\u4fe1\u7cfb\u7edf\u7b49\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u63d0\u9ad8\u7ebf\u8def\u7684\u4f20\u8f93\u8d28\u91cf\u548c\u53ef\u9760\u6027\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u964d\u4f4e\u63a5\u6536\u7aef\u7684\u8bef\u7801\u7387\u3001\u589e\u52a0\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u7b49\u65b9\u5f0f\uff0c\u63d0\u9ad8\u5e26\u5bbd\u5229\u7528\u7387\u548c\u964d\u4f4e\u91cd\u4f20\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000FEC\u6280\u672f\u901a\u8fc7\u5728\u53d1\u9001\u7aef\u5f15\u5165\u5197\u4f59\u4fe1\u606f\uff0c\u5e76\u5728\u63a5\u6536\u7aef\u5229\u7528\u8fd9\u4e9b\u5197\u4f59\u4fe1\u606f\u8fdb\u884c\u9519\u8bef\u7684\u68c0\u6d4b\u548c\u7ea0\u6b63\uff0c\u6709\u6548\u5730\u63d0\u9ad8\u4e86\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u3002<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 \u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u7684\u6700\u65b0\u53d1\u5c55\u548c\u7814\u7a76\u8fdb\u5c55\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

\u3000\u3000\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u7684\u6700\u65b0\u53d1\u5c55\u548c\u7814\u7a76\u8fdb\u5c55\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u3000\u5149\u901a\u4fe1\u7f51\u7edc\u4e2d\u7684\u5e94\u7528\uff1aFEC\u6280\u672f\u901a\u8fc7\u5728\u4f20\u8f93\u7801\u5217\u4e2d\u52a0\u5165\u5197\u4f59\u7ea0\u9519\u7801\uff0c\u53ef\u4ee5\u964d\u4f4e\u63a5\u6536\u7aef\u7684OSNR\u5bb9\u9650\uff0c\u51cf\u5c0f\u6240\u9700\u7684\u53d1\u5c04\u529f\u7387\u3002\u8fd9\u4e00\u6280\u672f\u5728\u5149\u901a\u4fe1\u7f51\u7edc\u4e2d\u7684\u5e94\u7528\uff0c\u7279\u522b\u662f\u5728\u8054\u901a\u516c\u53f8\u5149\u901a\u4fe1\u7f51\u7edc\u4e2d\uff0c\u5bf9\u4e8e\u63d0\u9ad8\u5149\u7f06\u7ebf\u8def\u8fd0\u884c\u53c2\u6570\u7684\u6027\u80fd\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u5168\u7403\u5bfc\u822a\u536b\u661f\u7cfb\u7edf(GNSS)\u4e2d\u7684\u5e94\u7528\uff1a\u7814\u7a76\u8868\u660e\uff0cFEC\u6280\u672f\u5728GNSS\u5bfc\u822a\u6d88\u606f\u7684\u7ea0\u9519\u4e2d\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002\u901a\u8fc7\u4f7f\u7528Hamming\u3001Bose-Chaudhuri-Hocquenghem\u3001\u5377\u79ef\u3001Turbo\u3001\u4f4e\u5bc6\u5ea6\u5947\u5076\u6821\u9a8c (LDPC) \u548c Polar \u7801\u7b49\u524d\u5411\u7ea0\u9519\u6280\u672f\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8GNSS\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u7f51\u7edc\u4f20\u8f93\u534f\u8bae\u4e2d\u7684\u5e94\u7528\uff1aFEC\u7f16\u7801\u5728\u7f51\u7edc\u4f20\u8f93\u4e2d\u7528\u4e8e\u5e94\u5bf9\u4e22\u5305\u95ee\u9898\uff0c\u901a\u8fc7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u52a0\u5165\u5197\u4f59\u6570\u636e\uff0c\u4f7f\u63a5\u6536\u7aef\u80fd\u591f\u5728\u4e22\u5305\u573a\u666f\u4e0b\u76f4\u63a5\u6062\u590d\u51fa\u539f\u59cb\u6570\u636e\u3002\u8fd9\u79cd\u6280\u672f\u5728\u4e22\u5305\u591a\u3001\u65f6\u5ef6\u5927\u7684\u573a\u666f\u4e0b\uff0c\u53ef\u4ee5\u5927\u91cf\u8282\u7701\u8d85\u65f6\u91cd\u4f20\u7684\u7b49\u5f85\u65f6\u95f4\uff0c\u4ece\u800c\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u7684\u670d\u52a1\u8d28\u91cf\u3002<\/li>\n\n\n\n
  • \u3000\u3000DNA\u5b58\u50a8\u89e3\u7801\u65b9\u6cd5\u7684\u7814\u7a76\uff1a\u9488\u5bf9\u5177\u67091\u4f4d\u7ea0\u9519\u80fd\u529b\u7684\u524d\u5411\u7ea0\u9519\u7f16\u7801DNA\u5b58\u50a8\uff0c\u63d0\u51fa\u4e86\u4e00\u79cd\u6876\u5f0f\u5206\u914d\u7b56\u7565\u4ee5\u63d0\u9ad8\u89e3\u7801\u7684\u7cbe\u5ea6\u548c\u6548\u7387\u3002\u8fd9\u79cd\u65b9\u6cd5\u9996\u5148\u641c\u7d22\u6bcf\u4e2a\u5206\u7ec4\u4e2d\u6240\u6709\u6d4b\u5e8f\u8bfb\u957f\u7684\u53ef\u8bc6\u522bDNA\u7801\uff0c\u7136\u540e\u6839\u636e\u8fd9\u4e9b\u7801\u786e\u5b9a\u5176\u5bf9\u5e94\u7684\u5408\u6cd5\u7f16\u7801\uff0c\u4ece\u800c\u4f18\u5316\u4e86DNA\u5b58\u50a8\u7684\u89e3\u7801\u8fc7\u7a0b\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u65e0\u7ebf\u5149\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u7814\u7a76\u8fdb\u5c55\uff1aFEC\u6280\u672f\u5df2\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5149\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u4ee5\u6539\u5584\u7cfb\u7edf\u7684\u8bef\u7801\u7387\u6027\u80fd\u3001\u63d0\u9ad8\u7cfb\u7edf\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3001\u5ef6\u957f\u5149\u4fe1\u53f7\u7684\u4f20\u8f93\u8ddd\u79bb\u3001\u964d\u4f4e\u5149\u53d1\u5c04\u673a\u53d1\u5c04\u529f\u7387\u7b49\u3002\u8fd9\u8868\u660eFEC\u6280\u672f\u5728\u65e0\u7ebf\u5149\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u548c\u53d1\u5c55\u5177\u6709\u91cd\u8981\u4ef7\u503c\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u9ad8\u901f\u5149\u901a\u4fe1\u7684\u53d1\u5c55\uff1a\u968f\u7740\u6280\u672f\u7684\u8fdb\u6b65\uff0c\u4f20\u7edf\u7684FEC\u65b9\u6848\u5df2\u7ecf\u4e0d\u80fd\u6ee1\u8db3\u7cfb\u7edf\u7684\u9700\u6c42\u3002\u56e0\u6b64\uff0c\u7814\u7a76\u8005\u4eec\u6b63\u5728\u63a2\u7d22\u66f4\u9ad8\u6548\u7684FEC\u6280\u672f\uff0c\u4ee5\u83b7\u5f97\u51c0\u7f16\u7801\u589e\u76ca\uff0c\u8fd9\u5bf9\u4e8e\u9ad8\u901f\u5149\u901a\u4fe1\u7684\u53d1\u5c55\u81f3\u5173\u91cd\u8981\u3002<\/li>\n\n\n\n
  • \u3000\u3000VoIP\u4e22\u5305\u5904\u7406\u6280\u672f\u7684\u7814\u7a76\uff1aFEC\u6280\u672f\u88ab\u89c6\u4e3a\u6539\u5584VoIP\u4e2d\u8bed\u97f3\u8d28\u91cf\u7684\u4e00\u79cd\u6709\u6548\u5197\u4f59\u7f16\u7801\u6280\u672f\u3002\u8fd9\u79cd\u6280\u672f\u5c5e\u4e8e\u4fe1\u9053\u7f16\u7801\uff0c\u76ee\u7684\u662f\u901a\u8fc7\u589e\u52a0\u5197\u4f59\u4fe1\u606f\u6765\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u30008.FEC\u6280\u672f\u7684\u6700\u65b0\u53d1\u5c55\u548c\u7814\u7a76\u8fdb\u5c55\u6db5\u76d6\u4e86\u5149\u901a\u4fe1\u7f51\u7edc\u3001GNSS\u7cfb\u7edf\u3001\u7f51\u7edc\u4f20\u8f93\u534f\u8bae\u3001DNA\u5b58\u50a8\u3001\u65e0\u7ebf\u5149\u901a\u4fe1\u7cfb\u7edf\u3001\u9ad8\u901f\u5149\u901a\u4fe1\u4ee5\u53caVoIP\u7b49\u591a\u4e2a\u9886\u57df\uff0c\u663e\u793a\u4e86FEC\u6280\u672f\u5728\u63d0\u9ad8\u901a\u4fe1\u7cfb\u7edf\u6027\u80fd\u65b9\u9762\u7684\u5e7f\u6cdb\u5e94\u7528\u548c\u6df1\u8fdc\u5f71\u54cd\u3002<\/p>\n\n\n\n

    \u3000\u3000\u4e8c\u3001 \u5982\u4f55\u6bd4\u8f83\u4e0d\u540c\u7c7b\u578b\u7684\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u548c\u6548\u7387?<\/h2>\n\n\n\n

    \u3000\u3000\u6bd4\u8f83\u4e0d\u540c\u7c7b\u578b\u7684\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u548c\u6548\u7387\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3FEC\u6280\u672f\u7684\u57fa\u672c\u539f\u7406\u548c\u5e94\u7528\u573a\u666f\u3002FEC\u6280\u672f\u901a\u8fc7\u5728\u53d1\u9001\u7aef\u6dfb\u52a0\u5197\u4f59\u6570\u636e\u6765\u5b9e\u73b0\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\uff0c\u5229\u7528\u8fd9\u4e9b\u5197\u4f59\u6570\u636e\u7684\u591a\u6837\u6027\u6765\u6062\u590d\u4e22\u5931\u6216\u635f\u574f\u7684\u6570\u636e\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u5bb9\u9519\u6027\u3002\u4e0d\u540c\u7684FEC\u6280\u672f\uff0c\u5982BCH-3\u7801\u3001RS-8\u7801\u7b49\uff0c\u5404\u6709\u5176\u7f16\u7801\u65b9\u6cd5\u548c\u4f18\u52a3\u52bf\u3002<\/p>\n\n\n\n

    \u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cFEC\u6280\u672f\u7684\u9009\u62e9\u548c\u8bc4\u4f30\u5e94\u8003\u8651\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n

      \n
    • \u3000\u3000\u6027\u80fd\u6307\u6807\uff1a\u5305\u62ec\u8bef\u7801\u7387(BER)\u3001\u541e\u5410\u91cf\u3001\u5ef6\u8fdf\u7b49\u3002\u4f8b\u5982\uff0c\u8d85\u5f3aFEC\u7f16\u7801\u80fd\u663e\u8457\u964d\u4f4e\u8bef\u7801\u7387\uff0c\u63d0\u9ad8\u901a\u4fe1\u53ef\u9760\u6027\u3002\u9ad8\u901f\u4ee5\u592a\u7f51\u94fe\u8def\u7684FEC\u6027\u80fd\u5206\u6790\u663e\u793a\uff0c\u4e0d\u540c\u7684\u591a\u8def\u590d\u7528\u548c\u7801\u5b57\u4ea4\u9519\u6280\u672f\u5bf9\u7cfb\u7edf\u6574\u4f53\u6027\u80fd\u6709\u663e\u8457\u5f71\u54cd\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u5e94\u7528\u573a\u666f\uff1a\u4e0d\u540c\u7684FEC\u6280\u672f\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u901a\u4fe1\u73af\u5883\u548c\u8981\u6c42\u3002\u4f8b\u5982\uff0c25G\u5149\u7ea4\u901a\u4fe1\u6280\u672f\u5f15\u5165FEC\u6280\u672f\u540e\uff0c\u5728\u9762\u5bf9\u65e5\u76ca\u589e\u957f\u7684\u6570\u636e\u4f20\u8f93\u9700\u6c42\u65f6\u53d6\u5f97\u4e86\u663e\u8457\u7684\u6027\u80fd\u63d0\u5347\u3002\u5b9e\u65f6\u89c6\u9891\u6d41\u4e2d\uff0cFEC\u6280\u672f\u7684\u4f18\u52bf\u5728\u4e8e\u4e0d\u4f9d\u8d56\u53cd\u9988\u4fe1\u9053\uff0c\u4e14\u7ea0\u9519\u6548\u7387\u4e0d\u53d7RTT\u5f71\u54cd\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u4e0e\u5176\u4ed6\u6280\u672f\u7684\u914d\u5408\u7b56\u7565\uff1a\u5b9e\u9645\u5e94\u7528\u4e2d\u901a\u5e38\u91c7\u7528ARQ-NACK\u6280\u672f\u5148\u884c\uff0cFEC\u6280\u672f\u515c\u5e95\u7684\u914d\u5408\u7b56\u7565\u3002\u6839\u636eNACK\u6210\u529f\u7387\u3001NACK\u54cd\u5e94\u65f6\u957f\u548cFEC\u6062\u590d\u7387\uff0c\u5bf9\u6574\u4f53\u7684\u6297\u4e22\u5305\u7b56\u7565\u8fdb\u884c\u5b9e\u65f6\u3001\u52a8\u6001\u7684\u8c03\u6574\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u6548\u7387\u548c\u8d44\u6e90\u5360\u7528\uff1aFEC\u6297\u4e22\u5305\u80fd\u529b\u548c\u5197\u4f59\u7387\u6210\u6b63\u6bd4\uff0c\u4f46\u9ad8\u5197\u4f59\u7387\u4f1a\u5360\u7528\u66f4\u591a\u7f51\u7edc\u5e26\u5bbd\u3002\u56e0\u6b64\uff0c\u5728\u8bc4\u4f30FEC\u6280\u672f\u7684\u6548\u7387\u65f6\uff0c\u9700\u8981\u5e73\u8861\u5176\u6027\u80fd\u63d0\u5347\u4e0e\u8d44\u6e90\u5360\u7528\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/li>\n<\/ul>\n\n\n\n

      \u3000\u3000\u6bd4\u8f83\u4e0d\u540c\u7c7b\u578b\u7684FEC\u6280\u672f\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u548c\u6548\u7387\u65f6\uff0c\u5e94\u7efc\u5408\u8003\u8651\u5176\u6027\u80fd\u6307\u6807\u3001\u9002\u7528\u573a\u666f\u3001\u4e0e\u5176\u4ed6\u6280\u672f\u7684\u914d\u5408\u7b56\u7565\u4ee5\u53ca\u6548\u7387\u548c\u8d44\u6e90\u5360\u7528\u7b49\u56e0\u7d20\u3002\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u65b9\u9762\u7684\u7efc\u5408\u8bc4\u4f30\uff0c\u53ef\u4ee5\u9009\u62e9\u6700\u9002\u5408\u7279\u5b9a\u5e94\u7528\u9700\u6c42\u7684FEC\u6280\u672f\u3002<\/p>\n\n\n\n

      \u3000\u3000\u4e09\u3001 \u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u5728\u5149\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n

      \u3000\u3000\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u5728\u5149\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n\n\n\n

        \n
      • \u3000\u3000\u57fa\u4e8e\u975e\u89c4\u5219LDPC(\u4f4e\u5bc6\u5ea6\u5947\u5076\u6821\u9a8c)\u957f\u7801\u7684Super-FEC\u65b9\u6848\uff1a\u8fd9\u79cd\u65b9\u6848\u91c7\u7528\u4e0d\u540c\u8fdb\u5236\u7684BCH(\u535a\u65af-\u67e5\u5fb7\u80e1\u91cc-\u970d\u6606\u683c\u59c6)\u7801\u4f5c\u4e3a\u5916\u7801\uff0cLDPC\u7801\u4f5c\u4e3a\u5185\u7801\u7684\u7ea7\u8054\u65b9\u5f0f\u3002\u9488\u5bf9\u7cfb\u7edf\u4e0d\u540c\u7684\u7801\u7387\u9700\u6c42\uff0c\u8bbe\u8ba1\u4e86\u4e0d\u540c\u7684\u7ea7\u8054\u6784\u9020\u5f62\u5f0f\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u96c6\u6210\u6982\u7387\u6574\u5f62(PS)\u548c\u524d\u5411\u7ea0\u9519(FEC)\u7684\u5206\u5c42PS-FEC\u67b6\u6784\uff1a\u8fd9\u79cd\u67b6\u6784\u901a\u8fc7\u6982\u7387\u5e45\u5ea6\u6574\u5f62(PS)\u7f16\u7801\u5668\u548cFEC\u7f16\u7801\u5668\u7ec4\u6210\uff0c\u5229\u7528\u4fe1\u606f\u8bba\u8bba\u8bc1\u5f97\u51fa\u53ef\u5b9e\u73b0\u7684PS\u7f16\u7801\u7387\u548cFEC\u89e3\u7801\u7387\uff0c\u9002\u7528\u4e8e\u5149\u8f6c\u53d1\u5668\u7684\u8bbe\u8ba1\u548c\u6027\u80fd\u8bc4\u4f30\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u5e26\u5185FEC\u4e0e\u5e26\u5916\u666e\u901aFEC\uff1aFEC\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u4e3b\u8981\u5206\u4e3a\u5e26\u5185FEC\u548c\u5e26\u5916\u666e\u901aFEC(\u5982ITU-T G.709\u6807\u51c6\u4e2d\u5b9a\u4e49\u7684)\uff0c\u8fd9\u4e24\u79cd\u65b9\u5f0f\u90fd\u662f\u4e3a\u4e86\u964d\u4f4e\u7cfb\u7edf\u5bf9\u4e8eOSNR(\u5149\u4fe1\u566a\u6bd4)\u5bb9\u9650\u7684\u8981\u6c42\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u786c\u5224\u51b3\u7ea7\u8054\u7801\u7684\u5e94\u7528\uff1a\u7b2c\u4e8c\u4ee3FEC\u91c7\u7528\u786c\u5224\u51b3\u7ea7\u8054\u7801\uff0c\u7efc\u5408\u5e94\u7528\u7ea7\u8054\u3001\u4ea4\u7ec7\u3001\u8fed\u4ee3\u8bd1\u7801\u7b49\u6280\u672f\uff0c\u5f53\u8f93\u51faBER=1E-15\u65f6\uff0c\u5176\u51c0\u7f16\u7801\u589e\u76ca\u4e3a8dB\u4ee5\u4e0a\uff0c\u53ef\u652f\u630110G\u548c40G\u7684\u7cfb\u7edf\u957f\u8ddd\u79bb\u4f20\u8f93\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u5728\u9ad8\u901f\u7387\u5149\u6a21\u5757\u4e2d\u7684\u5e94\u7528\uff1a\u4f8b\u5982\uff0c100G QSFP28 ZR4\u5149\u6a21\u5757\uff0c\u5728\u5f00\u542fFEC\u529f\u80fd\u540e\uff0c\u901a\u8fc7\u5355\u6a21\u5149\u7ea4\u4f20\u8f93\u8ddd\u79bb\u6700\u9ad8\u53ef\u8fbe90KM\uff0c\u76f8\u6bd4\u6ca1\u6709\u5f00\u542fFEC\u529f\u80fd\u65f6\u66f4\u957f\u3002<\/li>\n\n\n\n
      • \u3000\u3000\u4f7f\u7528\u7ea0\u9519\u7801(ECC)\u8fdb\u884c\u5197\u4f59\u7f16\u7801\uff1a\u53d1\u9001\u65b9\u901a\u8fc7\u4f7f\u7528\u7ea0\u9519\u7801\u5bf9\u4fe1\u606f\u8fdb\u884c\u5197\u4f59\u7f16\u7801\uff0c\u4ee5\u5b9e\u73b0\u4f20\u8f93\u8bef\u7801\u7ea0\u6b63\u7684\u76ee\u7684\u3002<\/li>\n\n\n\n
      • \u3000\u3000FEC\u7f16\u7801\u5668\u548cFEC\u8bd1\u7801\u5668\u7684\u914d\u5408\u4f7f\u7528\uff1a\u53d1\u9001\u7aef\u7684FEC\u7f16\u7801\u5668\u5c06\u5f85\u4f20\u8f93\u7684\u4fe1\u53f7\u7f16\u6210\u5177\u6709\u4e00\u5b9a\u7ea0\u9519\u80fd\u529b\u7684\u7801\uff0c\u63a5\u6536\u7aefFEC\u8bd1\u7801\u5668\u5bf9\u63a5\u6536\u7684\u5e8f\u5217\u8fdb\u884c\u8bd1\u7801\uff0c\u82e5\u4f20\u8f93\u4e2d\u4ea7\u751f\u7684\u5dee\u9519\u6570\u76ee\u5728\u5176\u7ea0\u9519\u80fd\u529b\u8303\u56f4\u4e4b\u5185\u65f6\uff0c\u5bf9\u5dee\u9519\u8fdb\u884c\u7ea0\u6b63\u3002<\/li>\n<\/ul>\n\n\n\n

        \u3000\u3000\u8fd9\u4e9b\u5b9e\u73b0\u65b9\u5f0f\u5c55\u793a\u4e86FEC\u6280\u672f\u5728\u5149\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u591a\u6837\u5316\u5e94\u7528\uff0c\u65e8\u5728\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u4f20\u8f93\u6548\u7387\u3002<\/p>\n\n\n\n

        \u3000\u3000\u56db\u3001 \u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u5982\u4f55\u5f71\u54cd\u6570\u636e\u4f20\u8f93\u7684\u8bef\u7801\u7387(BER)\u548c\u5e26\u5bbd\u5229\u7528\u7387?<\/h2>\n\n\n\n

        \u3000\u3000\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u901a\u8fc7\u5728\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u52a0\u5165\u5197\u4f59\u7ea0\u9519\u7801\uff0c\u80fd\u591f\u5728\u63a5\u6536\u7aef\u81ea\u52a8\u7ea0\u6b63\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u8bef\u7801\uff0c\u4ece\u800c\u964d\u4f4e\u63a5\u6536\u4fe1\u53f7\u7684\u8bef\u7801\u7387(BER)\u3002\u8fd9\u79cd\u6280\u672f\u4e0d\u4ec5\u53ef\u4ee5\u51cf\u5c11\u56e0\u9519\u8bef\u800c\u9700\u8981\u91cd\u4f20\u7684\u6570\u636e\u6b21\u6570\uff0c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\uff0c\u8fd8\u80fd\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63d0\u5347\u5e26\u5bbd\u5229\u7528\u7387\u3002\u5177\u4f53\u6765\u8bf4\uff0cFEC\u6280\u672f\u7684\u5e94\u7528\u53ef\u4ee5\u5b9e\u73b0\u4ee5\u4e0b\u51e0\u70b9\u5f71\u54cd\uff1a<\/p>\n\n\n\n

          \n
        • \u3000\u3000\u964d\u4f4e\u8bef\u7801\u7387(BER)\uff1a\u901a\u8fc7\u5728\u4f20\u8f93\u7801\u5217\u4e2d\u52a0\u5165\u5197\u4f59\u7ea0\u9519\u7801\uff0cFEC\u6280\u672f\u80fd\u591f\u5728\u4e00\u5b9a\u6761\u4ef6\u4e0b\u901a\u8fc7\u89e3\u7801\u81ea\u52a8\u7ea0\u6b63\u4f20\u8f93\u8bef\u7801\uff0c\u663e\u8457\u964d\u4f4e\u63a5\u6536\u4fe1\u53f7\u7684\u8bef\u7801\u7387\u3002<\/li>\n\n\n\n
        • \u3000\u3000\u51cf\u5c11\u91cd\u4f20\u6b21\u6570\uff1a\u5f53\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u9519\u8bef\u65f6\uff0c\u63a5\u6536\u7aef\u53ef\u4ee5\u4f7f\u7528FEC\u7f16\u7801\u81ea\u884c\u4fee\u590d\u9519\u8bef\uff0c\u907f\u514d\u4e86\u9700\u8981\u91cd\u4f20\u6570\u636e\u7684\u60c5\u51b5\uff0c\u8fd9\u4e0d\u4ec5\u51cf\u5c11\u4e86\u4f20\u8f93\u5ef6\u8fdf\uff0c\u4e5f\u63d0\u9ad8\u4e86\u5e26\u5bbd\u5229\u7528\u7387\u3002<\/li>\n\n\n\n
        • \u3000\u3000\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u5b9e\u65f6\u6027\uff1aFEC\u7f16\u7801\u901a\u8fc7\u5728\u6570\u636e\u5305\u4e2d\u52a0\u5165\u5197\u4f59\uff0c\u5141\u8bb8\u6570\u636e\u63a5\u6536\u7aef\u5728\u4e22\u5305\u60c5\u51b5\u4e0b\u76f4\u63a5\u4ece\u5197\u4f59\u4e2d\u6062\u590d\u4e22\u5931\u6570\u636e\uff0c\u800c\u4e0d\u9700\u8981\u53d1\u9001\u7aef\u91cd\u4f20\u3002\u8fd9\u5bf9\u4e8e\u5bf9\u6570\u636e\u5b9e\u65f6\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u666f\u5177\u6709\u975e\u5e38\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/li>\n\n\n\n
        • \u3000\u3000\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u5bb9\u9519\u6027\uff1aFEC\u4f5c\u4e3a\u4e00\u79cd\u91cd\u8981\u7684\u7ea0\u9519\u6280\u672f\uff0c\u5728\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u53ef\u9760\u6027\u548c\u5bb9\u9519\u6027\u65b9\u9762\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002\u5b83\u80fd\u591f\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u68c0\u6d4b\u548c\u7ea0\u6b63\u6570\u636e\u9519\u8bef\uff0c\u5feb\u901f\u6062\u590d\u4f20\u8f93\u3002<\/li>\n<\/ul>\n\n\n\n

          \u3000\u3000\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u901a\u8fc7\u589e\u52a0\u5197\u4f59\u7ea0\u9519\u7801\u6765\u964d\u4f4e\u6570\u636e\u4f20\u8f93\u7684\u8bef\u7801\u7387(BER)\uff0c\u5e76\u901a\u8fc7\u51cf\u5c11\u91cd\u4f20\u6b21\u6570\u548c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u5b9e\u65f6\u6027\u53ca\u53ef\u9760\u6027\uff0c\u95f4\u63a5\u63d0\u9ad8\u4e86\u5e26\u5bbd\u5229\u7528\u7387\u3002<\/p>\n\n\n\n

          \u3000\u3000\u4e94\u3001 \u5728\u5f53\u524d\u7684\u6280\u672f\u6761\u4ef6\u4e0b\uff0c\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u9762\u4e34\u7684\u4e3b\u8981\u6311\u6218\u548c\u89e3\u51b3\u65b9\u6848\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

          \u3000\u3000\u5728\u5f53\u524d\u7684\u6280\u672f\u6761\u4ef6\u4e0b\uff0c\u524d\u5411\u7ea0\u9519(FEC)\u6280\u672f\u9762\u4e34\u7684\u4e3b\u8981\u6311\u6218\u5305\u62ec\u9ad8\u5ef6\u8fdf\u3001\u4fe1\u566a\u6bd4\u9650\u5236\u548c\u901a\u4fe1\u8d28\u91cf\u95ee\u9898\u3002\u8fd9\u4e9b\u6311\u6218\u4e3b\u8981\u6e90\u4e8e\u536b\u661f\u901a\u4fe1\u7b49\u7279\u5b9a\u5e94\u7528\u573a\u666f\u7684\u7279\u6027\uff0c\u5176\u4e2d\u9ad8\u5ef6\u8fdf\u548c\u4fe1\u566a\u6bd4\u9650\u5236\u662f\u7531\u4e8e\u7269\u7406\u4f20\u8f93\u4ecb\u8d28\u7684\u9650\u5236\uff0c\u800c\u901a\u4fe1\u8d28\u91cf\u95ee\u9898\u662f\u7531\u4e8e\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u4f1a\u53d7\u5230\u5404\u79cd\u5e72\u6270\u3002<\/p>\n\n\n\n

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