{"id":100148,"date":"2024-12-30T11:21:32","date_gmt":"2024-12-30T03:21:32","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=100148"},"modified":"2024-12-30T11:21:36","modified_gmt":"2024-12-30T03:21:36","slug":"lcsjcjzjs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/100148.html","title":{"rendered":"LoRa\u4f20\u8f93\u7ea0\u9519\u673a\u5236\u4ecb\u7ecd"},"content":{"rendered":"\n

\u3000\u3000LoRa\u4f20\u8f93\u7ea0\u9519\u673a\u5236<\/strong>\u4e3b\u8981\u4f9d\u8d56\u4e8e\u524d\u5411\u7ea0\u9519\u7f16\u7801(Forward Error Correction, FEC)\u6280\u672f\uff0c\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u51c6\u786e\u6027\u3002\u4ee5\u4e0b\u662fLoRa\u7ea0\u9519\u673a\u5236\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n

\u3000\u3000\u524d\u5411\u7ea0\u9519\u7f16\u7801\uff08FEC\uff09<\/strong><\/p>\n\n\n\n

\u3000\u3000LoRa\u6280\u672f\u901a\u8fc7\u5728\u53d1\u9001\u7aef\u6dfb\u52a0\u5197\u4f59\u4fe1\u606f\u6765\u5b9e\u73b0\u524d\u5411\u7ea0\u9519\u3002\u8fd9\u4e9b\u5197\u4f59\u4fe1\u606f\u4f7f\u5f97\u63a5\u6536\u7aef\u80fd\u591f\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u68c0\u6d4b\u5e76\u7ea0\u6b63\u63a5\u6536\u5230\u7684\u9519\u8bef\u6570\u636e\u3002FEC\u6280\u672f\u7279\u522b\u9002\u7528\u4e8e\u5728\u566a\u58f0\u6216\u5e72\u6270\u73af\u5883\u4e0b\u63d0\u9ad8\u901a\u4fe1\u94fe\u8def\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u7f16\u7801\u7387\uff08Code Rate, CR\uff09<\/strong><\/p>\n\n\n\n

\u3000\u3000\u7f16\u7801\u7387\u662fLoRa\u4e2d\u7528\u4e8e\u8868\u793a\u5197\u4f59\u4fe1\u606f\u6bd4\u4f8b\u7684\u4e00\u4e2a\u91cd\u8981\u53c2\u6570\u3002\u5e38\u89c1\u7684\u7f16\u7801\u7387\u5305\u62ec4\/5\u30014\/6\u30014\/7\u548c4\/8.\u5176\u4e2d\u6570\u5b574\u8868\u793a\u539f\u59cb\u6570\u636e\u4f4d\u6570\uff0c\u540e\u9762\u7684\u6570\u5b57\u8868\u793a\u5197\u4f59\u4f4d\u6570\u3002\u4f8b\u5982\uff0c4\/5\u7684\u7f16\u7801\u7387\u610f\u5473\u7740\u6bcf\u53d1\u90015\u4e2a\u6bd4\u7279\uff0c\u5176\u4e2d4\u4e2a\u662f\u6709\u6548\u6570\u636e\uff0c1\u4e2a\u662f\u5197\u4f59\u6570\u636e\u3002\u8f83\u4f4e\u7684\u7f16\u7801\u7387(\u59824\/5)\u63d0\u4f9b\u4e86\u66f4\u5f3a\u7684\u7ea0\u9519\u80fd\u529b\uff0c\u4f46\u4f1a\u964d\u4f4e\u6570\u636e\u4f20\u8f93\u901f\u7387;\u8f83\u9ad8\u7684\u7f16\u7801\u7387(\u59824\/8)\u5219\u63d0\u9ad8\u4e86\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u7ea0\u9519\u80fd\u529b\u8f83\u5f31\u3002<\/p>\n\n\n\n

\u3000\u3000\u5faa\u73af\u5197\u4f59\u6821\u9a8c\uff08CRC\uff09<\/strong><\/p>\n\n\n\n

\u3000\u3000CRC\u662f\u4e00\u79cd\u5e38\u7528\u7684\u9519\u8bef\u68c0\u6d4b\u6280\u672f\uff0c\u7528\u4e8e\u786e\u4fdd\u6570\u636e\u5305\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u672a\u88ab\u635f\u574f\u3002LoRa\u8c03\u5236\u89e3\u8c03\u5668\u901a\u5e38\u4f1a\u8ba1\u7b97\u5e76\u9644\u52a0CRC\u6821\u9a8c\u7801\uff0c\u63a5\u6536\u7aef\u901a\u8fc7\u9a8c\u8bc1CRC\u6765\u5224\u65ad\u6570\u636e\u5305\u662f\u5426\u5b8c\u6574\u3002\u5982\u679cCRC\u6821\u9a8c\u5931\u8d25\uff0c\u63a5\u6536\u7aef\u4f1a\u4e22\u5f03\u8be5\u6570\u636e\u5305\u5e76\u8bf7\u6c42\u91cd\u4f20\u3002<\/p>\n\n\n\n

\u3000\u3000Reed-Solomon\uff08RS\uff09\u548cLDPC\uff08Low-Density Parity-Check\uff09\u7f16\u7801<\/strong><\/p>\n\n\n\n

\u3000\u3000LoRa\u7cfb\u7edf\u4e2d\u8fd8\u53ef\u80fd\u4f7f\u7528RS\u7f16\u7801\u548cLDPC\u7f16\u7801\u6765\u8fdb\u4e00\u6b65\u63d0\u9ad8\u7ea0\u9519\u80fd\u529b\u3002RS\u7f16\u7801\u9002\u7528\u4e8e\u968f\u673a\u9519\u8bef\u7684\u7ea0\u6b63\uff0c\u800cLDPC\u7f16\u7801\u5219\u66f4\u9002\u5408\u7ea0\u6b63\u5e38\u89c1\u7684\u7a81\u53d1\u9519\u8bef\u3002\u8fd9\u4e9b\u9ad8\u7ea7\u7f16\u7801\u6280\u672f\u80fd\u591f\u663e\u8457\u63d0\u5347LoRa\u5728\u590d\u6742\u73af\u5883\u4e0b\u7684\u901a\u4fe1\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4ea4\u7ec7\u6280\u672f<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4ea4\u7ec7\u6280\u672f\u901a\u8fc7\u91cd\u65b0\u6392\u5217\u6570\u636e\u4f4d\u6765\u5206\u6563\u9519\u8bef\uff0c\u4ece\u800c\u63d0\u9ad8\u7ea0\u9519\u6548\u7387\u3002\u5728LoRa\u4e2d\uff0c\u4ea4\u7ec7\u901a\u5e38\u4e0eFEC\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u589e\u5f3a\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n

\u3000\u3000\u6269\u9891\u8c03\u5236<\/strong><\/p>\n\n\n\n

\u3000\u3000\u6269\u9891\u8c03\u5236\u662fLoRa\u7684\u6838\u5fc3\u6280\u672f\u4e4b\u4e00\uff0c\u901a\u8fc7\u5c06\u6bcf\u4e2a\u6570\u636e\u4f4d\u6269\u5c55\u5230\u591a\u4e2a\u7801\u7247\u6765\u964d\u4f4e\u8bef\u7801\u7387\u3002\u6269\u9891\u56e0\u5b50(SF)\u8d8a\u9ad8\uff0c\u6bcf\u4e2a\u7b26\u53f7\u4f20\u8f93\u7684\u4f4d\u6570\u8d8a\u591a\uff0c\u6297\u5e72\u6270\u80fd\u529b\u8d8a\u5f3a\uff0c\u4f46\u6570\u636e\u901f\u7387\u4e5f\u4f1a\u76f8\u5e94\u964d\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u3000\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u4f18\u5316<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cLoRa\u7cfb\u7edf\u53ef\u4ee5\u6839\u636e\u4fe1\u9053\u6761\u4ef6\u52a8\u6001\u8c03\u6574\u7f16\u7801\u7387\u548c\u6269\u9891\u56e0\u5b50\uff0c\u4ee5\u5e73\u8861\u4f20\u8f93\u901f\u7387\u548c\u53ef\u9760\u6027\u3002\u4f8b\u5982\uff0c\u5728\u5e72\u6270\u8f83\u5927\u7684\u73af\u5883\u4e2d\uff0c\u53ef\u4ee5\u9009\u62e9\u8f83\u4f4e\u7684\u7f16\u7801\u7387\u548c\u8f83\u9ad8\u7684\u6269\u9891\u56e0\u5b50\u6765\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa\u7684\u7ea0\u9519\u673a\u5236\u901a\u8fc7\u591a\u79cd\u6280\u672f\u624b\u6bb5\u76f8\u7ed3\u5408\uff0c\u663e\u8457\u63d0\u9ad8\u4e86\u65e0\u7ebf\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\uff0c\u4f7f\u5176\u5728\u7269\u8054\u7f51\u9886\u57df\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 LoRa\u524d\u5411\u7ea0\u9519\u7f16\u7801(FEC)\u6280\u672f\u7684\u6700\u65b0\u8fdb\u5c55<\/h2>\n\n\n\n

\u3000\u3000LoRa\u524d\u5411\u7ea0\u9519\u7f16\u7801(FEC)\u6280\u672f\u7684\u6700\u65b0\u8fdb\u5c55\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n

\u3000\u30001. \u7f16\u7801\u65b9\u5f0f\u7684\u591a\u6837\u5316<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u4f4e\u5bc6\u5ea6\u5947\u5076\u6821\u9a8c\uff08LDPC\uff09\u7f16\u7801<\/strong>\uff1aLDPC\u7f16\u7801\u57fa\u4e8e\u56fe\u8bba\uff0c\u80fd\u5b9e\u73b0\u63a5\u8fd1\u9999\u519c\u6781\u9650\u7684\u7f16\u7801\u6548\u7387\uff0c\u6709\u6548\u63d0\u9ad8\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u53ef\u9760\u6027\uff0c\u964d\u4f4e\u8bef\u7801\u7387\u548c\u4e22\u5305\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u6781\u5316\u7801\uff08Polar Code\uff09<\/strong> \uff1a\u6781\u5316\u7801\u7531\u571f\u8033\u5176\u79d1\u5b66\u5bb6Erdal Ar\u0131kan\u4e8e2009\u5e74\u63d0\u51fa\uff0c\u5177\u6709\u4f18\u79c0\u7684\u6027\u80fd\u548c\u8f83\u4f4e\u7684\u8ba1\u7b97\u590d\u6742\u5ea6\uff0c\u5728\u65e0\u7ebf\u901a\u4fe1\u9886\u57df\u5e7f\u6cdb\u5e94\u7528\u3002\u6781\u5316\u7801\u901a\u8fc7\u9010\u6b65\u6781\u5316\u64cd\u4f5c\u5c06\u8f93\u5165\u6bd4\u7279\u5e8f\u5217\u8f6c\u6362\u4e3a\u8f93\u51fa\u6bd4\u7279\u5e8f\u5217\uff0c\u7528\u4e8e\u4fe1\u9053\u7f16\u7801\u3001\u53cd\u9988\u4fe1\u9053\u7f16\u7801\u3001\u8bd1\u7801\u3001\u5377\u79ef\u7f16\u7801\u7b49\u65b9\u9762\uff0c\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u30002. \u786c\u4ef6\u4e0e\u8f6f\u4ef6FEC\u7684\u7ed3\u5408<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u786c\u4ef6FEC<\/strong>\uff1a\u786c\u4ef6FEC\u901a\u5e38\u96c6\u6210\u5728\u786c\u4ef6\u4e2d\uff0c\u5904\u7406\u901f\u5ea6\u66f4\u5feb\uff0c\u53ef\u4ee5\u5b9e\u65f6\u7ea0\u6b63\u9519\u8bef\uff0c\u9002\u7528\u4e8e\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u5e94\u7528\u573a\u666f\u3002\u6b64\u5916\uff0c\u786c\u4ef6FEC\u529f\u8017\u4f4e\uff0c\u7a33\u5b9a\u6027\u9ad8\uff0c\u9002\u5408\u7535\u6c60\u4f9b\u7535\u7684\u8bbe\u5907\u3002<\/p>\n\n\n\n

\u3000\u3000\u8f6f\u4ef6FEC<\/strong>\uff1a\u8f6f\u4ef6FEC\u901a\u8fc7\u5728\u53d1\u9001\u7aef\u6dfb\u52a0\u5197\u4f59\u4fe1\u606f\u6765\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\uff0c\u63a5\u6536\u7aef\u5229\u7528\u8fd9\u4e9b\u5197\u4f59\u6570\u636e\u7ea0\u6b63\u4e00\u5b9a\u8303\u56f4\u5185\u7684\u9519\u8bef\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u30003. \u4e0e\u5176\u4ed6\u6280\u672f\u7684\u7ed3\u5408<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u4ea4\u7ec7\u6280\u672f<\/strong>\uff1a\u4ea4\u7ec7\u6280\u672f\u5c06\u539f\u59cb\u6570\u636e\u6309\u4e00\u5b9a\u89c4\u5219\u91cd\u65b0\u6392\u5217\uff0c\u4f7f\u5f97\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u8fde\u7eed\u9519\u8bef\u5728\u63a5\u6536\u7aef\u88ab\u5206\u6563\u5f00\u6765\uff0c\u4fbf\u4e8e\u7ea0\u9519\u3002\u901a\u8fc7\u7ed3\u5408\u4f7f\u7528FEC\u548c\u4ea4\u7ec7\u6280\u672f\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8LoRa\u901a\u4fe1\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u6570\u636e\u4f20\u8f93\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u30004. \u5e94\u7528\u573a\u666f\u7684\u6269\u5c55<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u8fdc\u8ddd\u79bb\u901a\u4fe1<\/strong>\uff1aFEC\u6280\u672f\u5728LoRa\u6269\u9891\u6280\u672f\u4e2d\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\uff0c\u7279\u522b\u662f\u5728\u8fdc\u8ddd\u79bb\u65e0\u7ebf\u901a\u4fe1\u4e2d\uff0c\u80fd\u591f\u4e3b\u52a8\u7ea0\u6b63\u88ab\u5e72\u6270\u7684\u6570\u636e\u5305\uff0c\u663e\u8457\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u4f20\u8f93\u8ddd\u79bb\u3002<\/p>\n\n\n\n

\u3000\u3000\u7269\u8054\u7f51\u901a\u4fe1<\/strong>\uff1a\u5728\u7269\u8054\u7f51\u901a\u4fe1\u4e2d\uff0cFEC\u6280\u672f\u901a\u8fc7\u51cf\u5c11\u91cd\u4f20\u7684\u9700\u6c42\uff0c\u63d0\u9ad8\u4e86\u901a\u4fe1\u7684\u6548\u7387\u548c\u8d28\u91cf\u3002\u5373\u4f7f\u5728\u9ad8\u5e72\u6270\u73af\u5883\u4e0b\uff0cFEC\u6280\u672f\u4f9d\u7136\u4fdd\u6301\u826f\u597d\u7684\u901a\u4fe1\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u30005. \u5177\u4f53\u4ea7\u54c1\u5e94\u7528<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u4ebf\u4f70\u7279E32\u7cfb\u5217<\/strong>\uff1a\u57fa\u4e8eFEC\u6280\u672f\uff0c\u5b9e\u73b0\u4e86\u6570\u636e\u8fdc\u8ddd\u79bb\u4f20\u8f93\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u63d0\u9ad8\u4e86\u901a\u4fe1\u7a33\u5b9a\u6027\u3002E32\u7cfb\u5217\u652f\u6301LoRa\u6269\u9891\u6280\u672f\uff0c\u5177\u6709\u66f4\u8fdc\u7684\u901a\u8baf\u8ddd\u79bb\u548c\u5f3a\u5927\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n

\u3000\u3000LoRa\u524d\u5411\u7ea0\u9519\u7f16\u7801(FEC)\u6280\u672f\u7684\u6700\u65b0\u8fdb\u5c55\u4e3b\u8981\u96c6\u4e2d\u5728\u7f16\u7801\u65b9\u5f0f\u7684\u591a\u6837\u5316\u3001\u786c\u4ef6\u4e0e\u8f6f\u4ef6FEC\u7684\u7ed3\u5408\u3001\u4e0e\u5176\u4ed6\u6280\u672f\u7684\u7ed3\u5408\u3001\u5e94\u7528\u573a\u666f\u7684\u6269\u5c55\u4ee5\u53ca\u5177\u4f53\u4ea7\u54c1\u7684\u5e94\u7528\u7b49\u65b9\u9762\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5982\u4f55\u6839\u636e\u4fe1\u9053\u6761\u4ef6\u52a8\u6001\u8c03\u6574LoRa\u7684\u7f16\u7801\u7387\u548c\u6269\u9891\u56e0\u5b50<\/h2>\n\n\n\n

\u3000\u3000LoRa\u7684\u7f16\u7801\u7387\u548c\u6269\u9891\u56e0\u5b50(SF)\u53ef\u4ee5\u6839\u636e\u4fe1\u9053\u6761\u4ef6\u52a8\u6001\u8c03\u6574\u4ee5\u4f18\u5316\u901a\u4fe1\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u89e3\u91ca\u548c\u5efa\u8bae\uff1a<\/p>\n\n\n\n

\u3000\u30001. \u6269\u9891\u56e0\u5b50\uff08SF\uff09<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u6269\u9891\u56e0\u5b50\u8868\u793a\u6bcf\u4e2a\u4fe1\u606f\u4f4d\u53d1\u9001\u7684\u7b26\u53f7\u6570\u91cf\u3002SF\u503c\u8d8a\u5927\uff0c\u6bcf\u4e2a\u4fe1\u606f\u4f4d\u6240\u9700\u7684\u7b26\u53f7\u6570\u91cf\u8d8a\u591a\uff0c\u56e0\u6b64\u7b26\u53f7\u901f\u7387(Rs)\u4f1a\u964d\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u3000SF\u503c\u8d8a\u5927\uff0c\u6570\u636e\u4f20\u8f93\u901f\u7387\u8d8a\u4f4e\uff0c\u4f46\u80fd\u63d0\u9ad8\u4fe1\u566a\u6bd4\u548c\u63a5\u6536\u7075\u654f\u5ea6\u3002\u5728\u4f4e\u4fe1\u566a\u6bd4\u6761\u4ef6\u4e0b\uff0c\u9ad8\u6269\u9891\u56e0\u5b50\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u589e\u76ca\uff0c\u4f7f\u5f97LoRa\u6a21\u5757\u4ecd\u80fd\u4fdd\u6301\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u9700\u8981\u957f\u8ddd\u79bb\u4f20\u8f93\u4e14\u5bf9\u6570\u636e\u901f\u7387\u8981\u6c42\u4e0d\u9ad8\u7684\u5e94\u7528\u573a\u666f\u4e0b\uff0c\u53ef\u4ee5\u9009\u62e9\u8f83\u5927\u7684\u6269\u9891\u56e0\u5b50\u3002<\/p>\n\n\n\n

\u3000\u30002. \u7f16\u7801\u7387\uff08CR\uff09<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u7f16\u7801\u7387\u8868\u793a\u6570\u636e\u6d41\u4e2d\u6709\u7528\u90e8\u5206\u7684\u6bd4\u4f8b\uff0c\u5373\u975e\u5197\u4f59\u90e8\u5206\u3002LoRa\u91c7\u7528\u5faa\u73af\u7ea0\u9519\u7f16\u7801\u8fdb\u884c\u524d\u5411\u9519\u8bef\u68c0\u6d4b\u4e0e\u7ea0\u9519\uff0c\u7f16\u7801\u7387\u53ef\u968f\u4fe1\u9053\u6761\u4ef6\u53d8\u5316\u800c\u8c03\u6574\u3002<\/p>\n\n\n\n

\u3000\u3000\u7f16\u7801\u7387\u8d8a\u9ad8\uff0c\u6570\u636e\u7684\u5197\u4f59\u5ea6\u8d8a\u5927\uff0c\u6297\u5e72\u6270\u80fd\u529b\u8d8a\u5f3a\uff0c\u4f46\u4f20\u8f93\u901f\u7387\u4f1a\u964d\u4f4e\u3002\u901a\u8fc7\u8c03\u6574\u7f16\u7801\u7387\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u901f\u7387\u548c\u94fe\u8def\u53ef\u9760\u6027\u4e4b\u95f4\u8fdb\u884c\u6743\u8861\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u5b58\u5728\u5e72\u6270\u65f6\uff0c\u8f83\u9ad8\u7684\u7f16\u7801\u7387\u53ef\u4ee5\u6709\u6548\u63d0\u5347\u94fe\u8def\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u30003. \u52a8\u6001\u8c03\u6574\u7b56\u7565<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u6839\u636e\u4fe1\u9053\u6761\u4ef6\u7684\u53d8\u5316\uff0c\u52a8\u6001\u8c03\u6574\u6269\u9891\u56e0\u5b50\u548c\u7f16\u7801\u7387\u3002\u4f8b\u5982\uff0c\u5728\u4fe1\u566a\u6bd4\u8f83\u4f4e\u6216\u5e72\u6270\u8f83\u5927\u7684\u73af\u5883\u4e2d\uff0c\u53ef\u4ee5\u589e\u52a0\u6269\u9891\u56e0\u5b50\u548c\u7f16\u7801\u7387\u4ee5\u63d0\u9ad8\u901a\u4fe1\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u9700\u8981\u5feb\u901f\u4f20\u8f93\u6570\u636e\u7684\u5e94\u7528\u573a\u666f\u4e0b\uff0c\u53ef\u4ee5\u9009\u62e9\u8f83\u5c0f\u7684\u6269\u9891\u56e0\u5b50\u548c\u8f83\u9ad8\u7684\u7f16\u7801\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u5f00\u53d1\u81ea\u9002\u5e94\u673a\u5236\uff0c\u5728\u4e0d\u540c\u6d41\u91cf\u573a\u666f\u4e0b\u52a8\u6001\u8c03\u6574\u6269\u9891\u56e0\u5b50\u8bbe\u7f6e\uff0c\u4ee5\u6700\u5927\u5316\u7f51\u7edc\u6574\u4f53\u6210\u529f\u6982\u7387\u3002<\/p>\n\n\n\n

\u3000\u30004. \u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u8003\u8651<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000LoRa\u6280\u672f\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u6027\u80fd\u8868\u73b0\u5177\u6709\u9002\u5e94\u6027\u548c\u7075\u6d3b\u6027\u3002\u5b83\u80fd\u591f\u6839\u636e\u4fe1\u9053\u6761\u4ef6\u52a8\u6001\u8c03\u6574\u7f16\u7801\u7387\u548c\u6269\u9891\u56e0\u5b50\uff0c\u5b9e\u73b0\u957f\u8ddd\u79bb\u901a\u4fe1\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u57ce\u5e02\u5bc6\u96c6\u533a\u57df\u6216\u5ba4\u5185\u73af\u5883\u4e2d\uff0cLoRa\u8bbe\u5907\u9700\u8981\u7a7f\u900f\u5efa\u7b51\u7269\uff0c\u6b64\u65f6\u5e94\u9009\u62e9\u9002\u5f53\u7684\u6269\u9891\u56e0\u5b50\u548c\u7f16\u7801\u7387\u4ee5\u786e\u4fdd\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u548c\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 Reed-Solomon(RS)\u548cLDPC(Low-Density Parity-Check)\u7f16\u7801\u5728LoRa\u7cfb\u7edf\u4e2d\u7684\u5177\u4f53\u5e94\u7528<\/h2>\n\n\n\n

\u3000\u3000\u5728LoRa\u7cfb\u7edf\u4e2d\uff0cReed-Solomon(RS)\u548cLDPC(Low-Density Parity-Check)\u7f16\u7801\u7684\u5177\u4f53\u5e94\u7528\u6848\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u30001. LDPC\u7f16\u7801\u5728LoRa\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u4fe1\u9053\u7f16\u7801\u65b9\u6848<\/strong>\uff1a\u4e00\u79cd\u57fa\u4e8eLDPC\u7f16\u89e3\u7801\u4f5c\u4e3a\u4fe1\u9053\u7f16\u7801\u65b9\u6848\u7684LoRa\u901a\u4fe1\u7cfb\u7edf\u88ab\u63d0\u51fa\u3002\u8be5\u7cfb\u7edf\u901a\u8fc7\u5229\u7528LDPC\u7801\u7f16\u7801\u4ee5\u53caLLR-BP\u89e3\u7801\u66ff\u4ee3\u4f20\u7edf\u7684\u6c49\u660e\u7801\uff0c\u5728\u4e0d\u6539\u53d8LoRa\u6838\u5fc3\u8c03\u5236\u6280\u672f\u548c\u53c2\u6570\u5b9a\u4e49\u7684\u524d\u63d0\u4e0b\uff0c\u7565\u53bb\u4ea4\u7ec7\u8fc7\u7a0b\uff0c\u5e76\u4f7f\u7cfb\u7edf\u5177\u5907\u4e86\u66f4\u597d\u7684\u8bef\u7801\u6027\u80fd\uff0c\u7075\u6d3b\u652f\u6301\u8f83\u957f\u7684\u6570\u636e\u5305\u4f20\u8f93\u3002\u4eff\u771f\u7ed3\u679c\u8868\u660e\uff0c\u5728\u540c\u4e00\u7f16\u7801\u7387\u4e0b\uff0c\u5f53\u8bef\u7801\u7387(Bit Error Rate, BER)\u6c34\u5e73\u4e3a10^(-3)\u65f6\uff0c\u57fa\u4e8eLDPC\u7f16\u89e3\u7801\u4f5c\u4e3a\u4fe1\u9053\u7f16\u7801\u65b9\u6848\u7684LoRa\u901a\u4fe1\u7cfb\u7edf\u76f8\u8f83\u4e8e\u4f20\u7edf\u7cfb\u7edf\u4fe1\u566a\u6bd4\u6027\u80fd\u80fd\u591f\u653e\u5bbd1.5 dB\u5de6\u53f3\uff0c\u8be5\u7ed3\u679c\u5bf9\u4e8eLoRa\u7cfb\u7edf\u7684\u5404\u4e2a\u6269\u9891\u56e0\u5b50(SF)\u5747\u6210\u7acb\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\u3002<\/p>\n\n\n\n

\u3000\u30002. RS\u7f16\u7801\u5728LoRa\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528<\/strong>\uff1a<\/h3>\n\n\n\n

\u3000\u3000\u4e58\u79ef\u7801\u65b9\u6848<\/strong>\uff1a\u867d\u7136\u6ca1\u6709\u76f4\u63a5\u63d0\u5230RS\u7f16\u7801\u5728LoRa\u7cfb\u7edf\u4e2d\u7684\u5177\u4f53\u5e94\u7528\uff0c\u4f46RS\u7f16\u7801\u56e0\u5176\u5f3a\u5927\u7684\u7ea0\u6b63\u7a81\u53d1\u9519\u8bef\u7684\u80fd\u529b\u800c\u88ab\u5e7f\u6cdb\u7528\u4e8e\u6784\u9020\u4e58\u79ef\u7801\u3002\u4f8b\u5982\uff0c\u6587\u732e\u4e2d\u63d0\u5230\u4e00\u79cd\u57fa\u4e8e\u591a\u8fdb\u5236LDPC\u7801\u548c\u9ad8\u7801\u7387RS\u7801\u7684\u4e58\u79ef\u7801\u65b9\u6848\u8bbe\u8ba1\u4e0e\u4f18\u5316\uff0c\u8fd9\u79cd\u65b9\u6848\u6709\u6548\u5730\u7ea0\u6b63\u4e86\u6bd4\u7279\u9519\u8bef\uff0c\u5e76\u57fa\u4e8e\u9519\u8bef\u4f30\u8ba1\u63d0\u51fa\u4e86\u4e00\u79cd\u65b0\u7684\u4e58\u79ef\u7801\u4f18\u5316\u65b9\u6848\u3002\u867d\u7136\u4e3b\u8981\u9488\u5bf9\u56fe\u50cf\u4f20\u8f93\u7684\u5e94\u7528\u573a\u666f\uff0c\u4f46\u5176\u539f\u7406\u548c\u6280\u672f\u53ef\u4ee5\u501f\u9274\u5230LoRa\u7cfb\u7edf\u4e2d\u3002<\/p>\n\n\n\n

\u3000\u3000\u56db\u3001 LoRa\u6280\u672f\u4e2d\u4ea4\u7ec7\u6280\u672f\u7684\u5bf9\u7ea0\u9519\u6548\u7387\u7684\u5f71\u54cd<\/h2>\n\n\n\n

\u3000\u3000LoRa\u6280\u672f\u4e2d\u7684\u4ea4\u7ec7\u6280\u672f\u662f\u4e00\u79cd\u91cd\u65b0\u5206\u914d\u4fe1\u606f\u5305\u4e2d\u4fe1\u606f\u7684\u6280\u672f\uff0c\u5176\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u548c\u5bf9\u7ea0\u9519\u6548\u7387\u7684\u5f71\u54cd\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u30001. \u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f<\/h3>\n\n\n\n

\u3000\u3000\u4ea4\u7ec7\u5668\u7ed3\u6784<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4ea4\u7ec7\u5668\u901a\u8fc7\u7ea0\u9519\u7f16\u7801\u540e\uff0c\u5c06\u591a\u7ec4(4+CR)\u6bd4\u7279\u6bb5\u5b58\u50a8\u5230\u4ea4\u7ec7\u5668\u7684\u5b58\u50a8\u9635\u5217\u4e2d\u3002\u6bcf\u4e2a\u4ea4\u7ec7\u5668\u6709(4+CR)\u5217\u548cSF\u884c\u7684Bit\u7a7a\u95f4\u3002\u4f8b\u5982\uff0c\u914d\u7f6e\u4e3aCR=1.SF=7\u65f6\uff0c\u6709\u6548\u6570\u636e\u6bd4\u7279\u6d41\u4e3a00000001 00100011 01000101 01100111.\u5148\u5c06\u6bd4\u7279\u7387\u63094bit\u4e00\u7ec4\u5212\u5206\uff1a0000 0001 0010 0011 0100 0101 0110 0111;\u7136\u540e\u901a\u8fc7\u7ea0\u9519\u7f16\u7801\u5728\u6bcf\u7ec4\u540e\u52a01bit\u7684\u7ea0\u9519\u7801\uff1a00000 00011 00101 00110 01001 01010 01100 01111;\u518d\u5c06\u8fd9\u4e9b\u6bd4\u7279\u6d41\u586b\u5145\u5230\u4ea4\u7ec7\u5668\u4e2d\uff0c\u8be5\u4ea4\u7ec7\u5668\u5b58\u50a8\u7a7a\u95f4\u4e3a5\u52177\u884c\u3002<\/p>\n\n\n\n

\u3000\u3000\u5bf9\u89d2\u4ea4\u7ec7\u5668<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000LoRa\u4f7f\u7528\u7684\u5bf9\u89d2\u4ea4\u7ec7\u5668\u80fd\u591f\u5c06\u8f93\u5165\u77e9\u9635\u7684\u4e00\u884c\u5206\u6563\u5230\u8f93\u51fa\u77e9\u9635\u7684\u5bf9\u89d2\u7ebf\u4e0a\u3002\u8fd9\u79cd\u5bf9\u89d2\u4ea4\u7ec7\u5668\u53ef\u4ee5\u5c06\u6700\u5927SF\u4e2a\u7531\u7b26\u53f7\u9519\u8bef\u5f15\u8d77\u7684\u9519\u8bef\u6bd4\u7279\u5206\u914d\u5230\u591a\u4e2a\u7ea0\u9519\u7801\u5b57\u91cc\uff0c\u4ece\u800c\u6253\u7834\u9519\u8bef\u6bd4\u7279\u4e4b\u95f4\u7684\u76f8\u5173\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u5faa\u73af\u4ea4\u7ec7\u7f16\u7801<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000AS62\u6a21\u7ec4\u91c7\u7528\u5faa\u73af\u4ea4\u7ec7\u7f16\u7801\uff0c\u80fd\u591f\u5b9e\u73b0\u6bcf\u5e27\u6570\u636e\u7ea0\u951964bit\u3002\u8fd9\u79cd\u5faa\u73af\u4ea4\u7ec7\u7f16\u7801\u80fd\u591f\u660e\u663e\u964d\u4f4e\u63a5\u6536\u4e22\u5305\u7387\u3002<\/p>\n\n\n\n

\u3000\u30002. \u5bf9\u7ea0\u9519\u6548\u7387\u7684\u5f71\u54cd<\/h3>\n\n\n\n

\u3000\u3000\u51cf\u5c11\u76f8\u90bb\u4f4d\u9519\u8bef<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4ea4\u7ec7\u6280\u672f\u901a\u8fc7\u91cd\u65b0\u5206\u914d\u4fe1\u606f\u5305\u4e2d\u7684\u4fe1\u606f\uff0c\u4f7f\u5f97\u5728\u91cd\u6784\u4e4b\u540e\uff0c\u9519\u8bef\u4e0d\u592a\u53ef\u80fd\u6765\u81ea\u76f8\u90bb\u7684\u4f4d\u3002\u8fd9\u6709\u52a9\u4e8e\u51cf\u5c11\u56e0\u566a\u58f0\u548c\u8870\u843d\u800c\u4ea7\u751f\u7684\u9519\u8bef\u5206\u5e03\uff0c\u4ece\u800c\u63d0\u4f9b\u66f4\u597d\u7684\u6297\u566a\u58f0\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u63d0\u9ad8\u6b63\u786e\u89e3\u7801\u7387<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u7531\u4e8e\u5927\u591a\u6570\u7801\u5b57\u4ec5\u6709\u53ef\u80fd\u5305\u542b\u4e00\u4e2a\u8bef\u7801\uff0cLoRa\u4f7f\u7528\u7ea0\u9519\u7f16\u7801\u548c\u4ea4\u7ec7\u7684\u7ec4\u5408\u80fd\u591f\u4fdd\u8bc1\u5f88\u9ad8\u7684\u6b63\u786e\u89e3\u7801\u7387\u3002\u8fd9\u79cd\u7ec4\u5408\u4f7f\u5f97LoRa\u80fd\u591f\u5728\u9762\u5bf9\u7a81\u53d1\u566a\u58f0\u65f6\uff0c\u4ecd\u80fd\u4fdd\u6301\u8f83\u9ad8\u7684\u901a\u4fe1\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u964d\u4f4e\u4e22\u5305\u7387<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5faa\u73af\u4ea4\u7ec7\u7f16\u7801\u80fd\u591f\u5b9e\u73b0\u6bcf\u5e27\u6570\u636e\u7ea0\u951964bit\uff0c\u4ece\u800c\u660e\u663e\u964d\u4f4e\u63a5\u6536\u4e22\u5305\u7387\u3002\u4f8b\u5982\uff0c\u6cfd\u8000\u79d1\u6280\u7684AS62\u6a21\u7ec4\u5728\u5f00\u542fFEC\u7ea0\u9519\u529f\u80fd\u540e\uff0c\u4e22\u5305\u7387\u663e\u8457\u964d\u4f4e\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e94\u3001 LoRa\u7cfb\u7edf\u5982\u4f55\u5e73\u8861\u4f20\u8f93\u901f\u7387\u548c\u53ef\u9760\u6027?<\/h2>\n\n\n\n

\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cLoRa\u7cfb\u7edf\u901a\u8fc7\u591a\u79cd\u6280\u672f\u624b\u6bb5\u5e73\u8861\u4f20\u8f93\u901f\u7387\u548c\u53ef\u9760\u6027\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u89e3\u91ca\uff1a<\/p>\n\n\n\n

\u3000\u3000\u9009\u62e9\u5408\u9002\u7684\u4f20\u8f93\u901f\u7387<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000LoRa\u6280\u672f\u652f\u6301\u4e0d\u540c\u7684\u6570\u636e\u901f\u7387(Data Rate, DR)\uff0c\u901a\u5e38\u8303\u56f4\u57280.3 kbps\u523050 kbps\u4e4b\u95f4\u3002\u9009\u62e9\u5408\u9002\u7684\u4f20\u8f93\u901f\u7387\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u9700\u6c42\uff0c\u5982\u8bbe\u5907\u95f4\u7684\u8ddd\u79bb\u3001\u7535\u6c60\u5bff\u547d\u548c\u4f20\u8f93\u6570\u636e\u91cf\u7b49\u56e0\u7d20\u3002\u8f83\u4f4e\u7684\u6570\u636e\u901f\u7387\u53ef\u4ee5\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\uff0c\u4f46\u4f1a\u964d\u4f4e\u541e\u5410\u91cf;\u8f83\u9ad8\u7684\u6570\u636e\u901f\u7387\u5219\u76f8\u53cd\u3002<\/p>\n\n\n\n

\u3000\u3000\u8c03\u6574\u6269\u9891\u56e0\u5b50\uff08SF\uff09<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6269\u9891\u56e0\u5b50\u662fLoRa\u8c03\u5236\u4e2d\u7684\u5173\u952e\u53c2\u6570\u4e4b\u4e00\uff0c\u76f4\u63a5\u5f71\u54cd\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002\u8f83\u5927\u7684SF\u503c\u53ef\u4ee5\u63d0\u4f9b\u66f4\u8fdc\u7684\u4fe1\u53f7\u8303\u56f4\u548c\u66f4\u597d\u7684\u4fe1\u53f7\u8d28\u91cf\uff0c\u4f46\u4f1a\u964d\u4f4e\u6570\u636e\u4f20\u8f93\u901f\u7387;\u8f83\u5c0f\u7684SF\u503c\u5219\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u4f1a\u589e\u52a0\u5bf9\u566a\u58f0\u548c\u5e72\u6270\u7684\u654f\u611f\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f18\u5316\u5e26\u5bbd\uff08BW\uff09<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5e26\u5bbd\u7684\u9009\u62e9\u4e5f\u4f1a\u5f71\u54cd\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u53ef\u9760\u6027\u3002\u8f83\u5bbd\u7684\u5e26\u5bbd\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u4f46\u4f1a\u964d\u4f4e\u7cfb\u7edf\u7684\u7075\u654f\u5ea6\uff0c\u7f29\u77ed\u901a\u4fe1\u8ddd\u79bb;\u8f83\u7a84\u7684\u5e26\u5bbd\u5219\u76f8\u53cd\u3002\u5408\u7406\u9009\u62e9\u5e26\u5bbd\u53ef\u4ee5\u5728\u4f20\u8f93\u901f\u7387\u548c\u901a\u4fe1\u8ddd\u79bb\u4e4b\u95f4\u627e\u5230\u5e73\u8861\u70b9\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u524d\u5411\u7ea0\u9519\u6280\u672f\uff08FEC\uff09<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u524d\u5411\u7ea0\u9519\u6280\u672f\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u4fee\u590d\u4e22\u5931\u7684\u6570\u636e\u5305\uff0c\u964d\u4f4e\u4e22\u5305\u7387\uff0c\u4ece\u800c\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002\u8fd9\u79cd\u6280\u672f\u901a\u8fc7\u589e\u52a0\u5197\u4f59\u5ea6\u6765\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4f18\u5316\u7f51\u7edc\u62d3\u6251\u7ed3\u6784<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5408\u7406\u89c4\u5212LoRa\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\uff0c\u907f\u514d\u8bbe\u5907\u4e4b\u95f4\u7684\u5e72\u6270\u548c\u51b2\u7a81\uff0c\u53ef\u4ee5\u63d0\u9ad8\u901a\u4fe1\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u8c03\u6574\u8bbe\u5907\u4e4b\u95f4\u7684\u8ddd\u79bb\u3001\u589e\u52a0\u7f51\u5173\u6570\u91cf\u7b49\u65b9\u5f0f\u6765\u4f18\u5316\u7f51\u7edc\u62d3\u6251\u3002<\/p>\n\n\n\n

\u3000\u3000\u9891\u7387\u8df3\u53d8\u548c\u4fe1\u9053\u7ba1\u7406<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u9891\u7387\u8df3\u53d8\u6280\u672f\u53ef\u4ee5\u907f\u514d\u62e5\u6324\u6216\u5608\u6742\u7684\u9891\u9053\uff0c\u63d0\u9ad8\u901a\u4fe1\u7684\u603b\u4f53\u7a33\u5b9a\u6027\u3002\u6b64\u5916\uff0c\u4fe1\u9053\u68c0\u6d4b\u4e0e\u9009\u62e9\u3001\u4fe1\u9053\u5360\u7528\u68c0\u6d4b(CAD)\u6280\u672f\u7b49\u4e5f\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u5e72\u6270\uff0c\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387\uff08ADR\uff09\u673a\u5236<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5f15\u5165\u81ea\u9002\u5e94\u6570\u636e\u901f\u7387\u673a\u5236\uff0c\u6839\u636e\u8282\u70b9\u7684\u5177\u4f53\u60c5\u51b5\u52a8\u6001\u8c03\u6574\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u53ef\u4ee5\u5728\u4fdd\u8bc1\u901a\u4fe1\u8d28\u91cf\u7684\u540c\u65f6\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u80fd\u91cf\u6d88\u8017\u3002<\/p>\n\n\n\n

\u3000\u3000\u5929\u7ebf\u8bbe\u8ba1\u548c\u5e03\u5c40\u4f18\u5316<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5408\u7406\u8bbe\u8ba1\u548c\u5e03\u5c40\u5929\u7ebf\u53ef\u4ee5\u51cf\u5c11\u4fe1\u53f7\u5e72\u6270\uff0c\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002\u4f8b\u5982\uff0c\u591a\u5929\u7ebf\u7f51\u5173\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u63a5\u6536\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

LoRa\u4f20\u8f93\u7ea0\u9519\u673a\u5236\u4e3b\u8981\u4f9d\u8d56\u4e8e\u524d\u5411\u7ea0\u9519\u7f16\u7801(Forward Error Correction, FEC)\u6280\u672f\uff0c\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u51c6\u786e\u6027\u3002\u4ee5\u4e0b\u662fLoRa\u7ea0\u9519\u673a\u5236\u7684\u8be6\u7ec6\u4ecb\u7ecd<\/p>\n","protected":false},"author":1,"featured_media":97773,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[54],"class_list":["post-100148","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-l-2"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/100148","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=100148"}],"version-history":[{"count":1,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/100148\/revisions"}],"predecessor-version":[{"id":100149,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/100148\/revisions\/100149"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/97773"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=100148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=100148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=100148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}