{"id":26745,"date":"2023-09-12T20:39:05","date_gmt":"2023-09-12T12:39:05","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=26745"},"modified":"2023-09-12T20:39:09","modified_gmt":"2023-09-12T12:39:09","slug":"dddwxjsyl","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/26745.html","title":{"rendered":"\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u539f\u7406"},"content":{"rendered":"\n

\u3000\u3000\u968f\u7740\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u7684\u5feb\u901f\u53d1\u5c55\uff0c\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u4f5c\u4e3a\u4e00\u79cd\u91cd\u8981\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u4e2a\u9886\u57df\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u7684\u539f\u7406\uff0c\u5e76\u63a2\u8ba8\u5176\u5728\u5b9e\u73b0\u9ad8\u6548\u7a33\u5b9a\u7684\u65e0\u7ebf\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u3002<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u6982\u8ff0<\/h2>\n\n\n\n

\u3000\u3000\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f<\/strong>\u662f\u4e00\u79cd\u65e0\u7ebf\u901a\u4fe1\u65b9\u5f0f\uff0c\u901a\u8fc7\u5efa\u7acb\u4e24\u4e2a\u8282\u70b9\u4e4b\u95f4\u7684\u76f4\u63a5\u8fde\u63a5\uff0c\u5b9e\u73b0\u6570\u636e\u7684\u4f20\u8f93\u3002\u4e0e\u4f20\u7edf\u7684\u57fa\u7ad9\u7f51\u7edc\u76f8\u6bd4\uff0c\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u5177\u6709\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u66f4\u4f4e\u7684\u5ef6\u8fdf\uff0c\u9002\u7528\u4e8e\u5bf9\u901a\u4fe1\u8d28\u91cf\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u666f\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u539f\u7406<\/h2>\n\n\n\n

\u3000\u30001. \u8c03\u5236\u4e0e\u89e3\u8c03\u6280\u672f<\/h3>\n\n\n\n

\u3000\u3000\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u4f7f\u7528\u8c03\u5236\u6280\u672f\u5c06\u6570\u5b57\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6a21\u62df\u4fe1\u53f7\u8fdb\u884c\u4f20\u8f93\uff0c\u7136\u540e\u4f7f\u7528\u89e3\u8c03\u6280\u672f\u5c06\u63a5\u6536\u5230\u7684\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6570\u5b57\u4fe1\u53f7\u3002\u5e38\u7528\u7684\u8c03\u5236\u6280\u672f\u5305\u62ec\u9891\u79fb\u952e\u63a7(FSK)\u3001\u76f8\u4f4d\u952e\u63a7(PSK)\u548c\u6b63\u4ea4\u632f\u5e45\u8c03\u5236(QAM)\u7b49\u3002\u89e3\u8c03\u6280\u672f\u6839\u636e\u8c03\u5236\u65b9\u5f0f\u8fdb\u884c\u76f8\u5e94\u7684\u89e3\u8c03\u64cd\u4f5c\uff0c\u5c06\u6a21\u62df\u4fe1\u53f7\u8fd8\u539f\u4e3a\u6570\u5b57\u4fe1\u53f7\u3002<\/p>\n\n\n\n

\u3000\u30002. \u5929\u7ebf\u6280\u672f<\/h3>\n\n\n\n

\u3000\u3000\u5929\u7ebf\u662f\u70b9\u5bf9\u70b9\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u8d1f\u8d23\u5c06\u7535\u78c1\u6ce2\u8f6c\u6362\u4e3a\u7535\u4fe1\u53f7\u6216\u5c06\u7535\u4fe1\u53f7\u8f6c\u6362\u4e3a\u7535\u78c1\u6ce2\u3002\u5e38\u89c1\u7684\u5929\u7ebf\u7c7b\u578b\u5305\u62ec\u5b9a\u5411\u5929\u7ebf\u3001\u5168\u5411\u5929\u7ebf\u548c\u6247\u5f62\u5929\u7ebf\u7b49\u3002\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684\u5929\u7ebf\u7c7b\u578b\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4fe1\u53f7\u7684\u5b9a\u5411\u4f20\u8f93\u548c\u8986\u76d6\u8303\u56f4\u7684\u8c03\u6574\u3002<\/p>\n\n\n\n

\u3000\u30003. \u9891\u8c31\u5229\u7528\u6280\u672f<\/h3>\n\n\n\n

\u3000\u3000\u9891\u8c31\u5229\u7528\u662f\u70b9\u5bf9\u70b9\u65e0\u7ebf\u901a\u4fe1\u4e2d\u7684\u5173\u952e\u95ee\u9898\u4e4b\u4e00\u3002\u4f20\u7edf\u7684\u9891\u8c31\u5206\u914d\u65b9\u5f0f\u5b58\u5728\u8d44\u6e90\u6d6a\u8d39\u548c\u9891\u8c31\u4e89\u7528\u7b49\u95ee\u9898\u3002\u800c\u73b0\u4ee3\u7684\u9891\u8c31\u5229\u7528\u6280\u672f\uff0c\u5982\u9891\u5206\u590d\u7528(FDM)\u3001\u65f6\u5206\u590d\u7528(TDM)\u548c\u7801\u5206\u590d\u7528(CDM)\u7b49\uff0c\u53ef\u4ee5\u5b9e\u73b0\u9891\u8c31\u7684\u9ad8\u6548\u5229\u7528\uff0c\u63d0\u9ad8\u901a\u4fe1\u7cfb\u7edf\u7684\u5bb9\u91cf\u548c\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u30004. \u9519\u8bef\u68c0\u6d4b\u4e0e\u7ea0\u6b63\u6280\u672f<\/h3>\n\n\n\n

\u3000\u3000\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\uff0c\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u5f80\u5f80\u4f1a\u53d7\u5230\u5404\u79cd\u5e72\u6270\uff0c\u5bfc\u81f4\u6570\u636e\u4f20\u8f93\u9519\u8bef\u3002\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u53ef\u9760\u4f20\u8f93\uff0c\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u91c7\u7528\u4e86\u591a\u79cd\u9519\u8bef\u68c0\u6d4b\u4e0e\u7ea0\u6b63\u6280\u672f\uff0c\u5982\u5faa\u73af\u5197\u4f59\u68c0\u6d4b(CRC)\u3001\u6d77\u660e\u7801\u548c\u5377\u79ef\u7801\u7b49\u3002\u8fd9\u4e9b\u6280\u672f\u53ef\u4ee5\u5728\u63a5\u6536\u7aef\u68c0\u6d4b\u548c\u7ea0\u6b63\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u9519\u8bef\uff0c\u63d0\u9ad8\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u7684\u5e94\u7528<\/h2>\n\n\n\n

\u3000\u30001. \u8fdc\u7a0b\u76d1\u63a7<\/h3>\n\n\n\n

\u3000\u3000\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u5728\u8fdc\u7a0b\u76d1\u63a7\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u901a\u8fc7\u5efa\u7acb\u70b9\u5bf9\u70b9\u7684\u65e0\u7ebf\u8fde\u63a5\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u8fdc\u7a0b\u8bbe\u5907\u7684\u5b9e\u65f6\u76d1\u63a7\u548c\u63a7\u5236\u3002\u4f8b\u5982\uff0c\u65e0\u4eba\u673a\u7684\u9065\u63a7\u64cd\u4f5c\u548c\u89c6\u9891\u4f20\u8f93\u3001\u667a\u80fd\u5bb6\u5c45\u8bbe\u5907\u7684\u8fdc\u7a0b\u63a7\u5236\u7b49\u90fd\u79bb\u4e0d\u5f00\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u7684\u652f\u6301\u3002<\/p>\n\n\n\n

\u3000\u30002. \u9ad8\u901f\u6570\u636e\u4f20\u8f93<\/h3>\n\n\n\n

\u3000\u3000\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u5728\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u9886\u57df\u5177\u6709\u91cd\u8981\u7684\u5e94\u7528\u4ef7\u503c\u3002\u901a\u8fc7\u5229\u7528\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u7684\u9ad8\u901f\u4f20\u8f93\u7279\u6027\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5927\u5bb9\u91cf\u6570\u636e\u7684\u5feb\u901f\u4f20\u8f93\uff0c\u6ee1\u8db3\u73b0\u4ee3\u901a\u4fe1\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u9ad8\u901f\u94c1\u8def\u7684\u901a\u4fe1\u7cfb\u7edf\u3001\u65e0\u7ebf\u5c40\u57df\u7f51(WLAN)\u7684\u6570\u636e\u4f20\u8f93\u7b49\u90fd\u662f\u57fa\u4e8e\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u5b9e\u73b0\u7684\u3002<\/p>\n\n\n\n

\u3000\u30003. \u519b\u4e8b\u901a\u4fe1<\/h3>\n\n\n\n

\u3000\u3000\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u5728\u519b\u4e8b\u901a\u4fe1\u9886\u57df\u6709\u7740\u91cd\u8981\u4f5c\u7528\u3002\u519b\u4e8b\u901a\u4fe1\u5bf9\u901a\u4fe1\u8d28\u91cf\u548c\u5b89\u5168\u6027\u7684\u8981\u6c42\u8f83\u9ad8\uff0c\u800c\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u901a\u8fc7\u5efa\u7acb\u76f4\u63a5\u8fde\u63a5\uff0c\u53ef\u4ee5\u63d0\u4f9b\u7a33\u5b9a\u53ef\u9760\u7684\u901a\u4fe1\u73af\u5883\u3002\u56e0\u6b64\uff0c\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u519b\u4e8b\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u5982\u6218\u573a\u901a\u4fe1\u3001\u519b\u4e8b\u96f7\u8fbe\u7b49\u3002<\/p>\n\n\n\n

\u3000\u3000\u7ed3\u8bba\uff1a<\/h2>\n\n\n\n

\u3000\u3000\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u901a\u8fc7\u5efa\u7acb\u76f4\u63a5\u8fde\u63a5\uff0c\u5b9e\u73b0\u4e86\u9ad8\u6548\u7a33\u5b9a\u7684\u65e0\u7ebf\u901a\u4fe1\u3002\u5b83\u7684\u539f\u7406\u6d89\u53ca\u8c03\u5236\u4e0e\u89e3\u8c03\u6280\u672f\u3001\u5929\u7ebf\u6280\u672f\u3001\u9891\u8c31\u5229\u7528\u6280\u672f\u548c\u9519\u8bef\u68c0\u6d4b\u4e0e\u7ea0\u6b63\u6280\u672f\u7b49\u3002<\/strong>\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u5728\u8fdc\u7a0b\u76d1\u63a7\u3001\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u548c\u519b\u4e8b\u901a\u4fe1\u7b49\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u968f\u7740\u65e0\u7ebf\u901a\u4fe1\u6280\u672f\u7684\u4e0d\u65ad\u8fdb\u6b65\uff0c\u70b9\u5bf9\u70b9\u65e0\u7ebf\u6280\u672f\u5c06\u7ee7\u7eed\u53d1\u6325\u91cd\u8981\u4f5c\u7528\uff0c\u4e3a\u5404\u884c\u5404\u4e1a\u63d0\u4f9b\u66f4\u9ad8\u6548\u3001\u66f4\u7a33\u5b9a\u7684\u65e0\u7ebf\u901a\u4fe1\u670d\u52a1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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