{"id":6398,"date":"2023-07-13T14:41:27","date_gmt":"2023-07-13T06:41:27","guid":{"rendered":"\/\/www.dealsbon.com\/?p=6398"},"modified":"2023-07-13T14:41:30","modified_gmt":"2023-07-13T06:41:30","slug":"xdlylzmjs","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/6398.html","title":{"rendered":"\u4fe1\u9053\u5229\u7528\u7387\u600e\u4e48\u8ba1\u7b97\uff1f"},"content":{"rendered":"\n

\u3000\u3000\u4fe1\u9053\u5229\u7528\u7387\u662f\u6307\u5728\u4e00\u4e2a\u7279\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u5185\uff0c\u4fe1\u9053\u6240\u4f20\u8f93\u7684\u6709\u6548\u6570\u636e\u7684\u6bd4\u4f8b\u3002\u5b83\u662f\u8861\u91cf\u4e00\u4e2a\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u7684\u6548\u7387\u7684\u91cd\u8981\u6307\u6807\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u544a\u8bc9\u6211\u4eec\u5728\u7ed9\u5b9a\u7684\u65f6\u95f4\u5185\u6211\u4eec\u53ef\u4ee5\u4f20\u8f93\u591a\u5c11\u6709\u6548\u6570\u636e\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u8ba8\u8bba\u5982\u4f55\u8ba1\u7b97\u4fe1\u9053\u5229\u7528\u7387\u4ee5\u53ca\u5982\u4f55\u4f18\u5316\u5b83\u3002<\/p>\n\n\n\n

\u3000\u30001. \u4ec0\u4e48\u662f\u4fe1\u9053\u5229\u7528\u7387?<\/h2>\n\n\n\n

\u3000\u3000\u4fe1\u9053\u5229\u7528\u7387\u662f\u6307\u5728\u4e00\u4e2a\u7279\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u5185\uff0c\u4fe1\u9053\u6240\u4f20\u8f93\u7684\u6709\u6548\u6570\u636e\u7684\u6bd4\u4f8b\u3002\u5b83\u53ef\u4ee5\u7528\u4ee5\u4e0b\u516c\u5f0f\u6765\u8ba1\u7b97\uff1a<\/p>\n\n\n\n

\u3000\u3000\u4fe1\u9053\u5229\u7528\u7387 = \u4f20\u8f93\u7684\u6709\u6548\u6570\u636e\u4f4d\u6570 \/ (\u4f20\u8f93\u7684\u603b\u4f4d\u6570 \u00d7 \u4f20\u8f93\u65f6\u95f4)<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0c\u4f20\u8f93\u7684\u6709\u6548\u6570\u636e\u4f4d\u6570\u662f\u6307\u4f20\u8f93\u7684\u5b9e\u9645\u6709\u6548\u6570\u636e\u91cf\uff0c\u4e0d\u5305\u62ec\u4efb\u4f55\u63a7\u5236\u4fe1\u606f\u6216\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\u7801\u3002\u4f20\u8f93\u7684\u603b\u4f4d\u6570\u5305\u62ec\u6240\u6709\u4f20\u8f93\u7684\u6570\u636e\uff0c\u5305\u62ec\u63a7\u5236\u4fe1\u606f\u548c\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\u7801\u3002\u4f20\u8f93\u65f6\u95f4\u662f\u6307\u4f20\u8f93\u6240\u9700\u7684\u603b\u65f6\u95f4\uff0c\u5305\u62ec\u4efb\u4f55\u5ef6\u8fdf\u6216\u7b49\u5f85\u65f6\u95f4\u3002<\/p>\n\n\n\n

\u3000\u30002. \u5982\u4f55\u4f18\u5316\u4fe1\u9053\u5229\u7528\u7387?<\/h2>\n\n\n\n

\u3000\u3000\u4f18\u5316\u4fe1\u9053\u5229\u7528\u7387\u53ef\u4ee5\u63d0\u9ad8\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u7684\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u4ee5\u4f18\u5316\u4fe1\u9053\u5229\u7528\u7387\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

\u3000\u3000(1)\u589e\u52a0\u5e26\u5bbd<\/strong>\uff1a\u589e\u52a0\u5e26\u5bbd\u53ef\u4ee5\u589e\u52a0\u4fe1\u9053\u7684\u5bb9\u91cf\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u9053\u5229\u7528\u7387\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u66f4\u9ad8\u9891\u7387\u7684\u4fe1\u53f7\u6216\u4f7f\u7528\u591a\u4e2a\u4fe1\u9053\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n

\u3000\u3000(2)\u4f7f\u7528\u66f4\u9ad8\u7ea7\u7684\u8c03\u5236\u65b9\u5f0f<\/strong>\uff1a\u4f7f\u7528\u66f4\u9ad8\u7ea7\u7684\u8c03\u5236\u65b9\u5f0f\u53ef\u4ee5\u5728\u5355\u4f4d\u65f6\u95f4\u5185\u4f20\u8f93\u66f4\u591a\u7684\u6570\u636e\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u9053\u5229\u7528\u7387\u3002\u4f8b\u5982\uff0c\u4f7f\u752816-QAM\u4ee3\u66ffQPSK\u53ef\u4ee5\u5728\u76f8\u540c\u7684\u5e26\u5bbd\u4e0b\u4f20\u8f93\u66f4\u591a\u7684\u6570\u636e\u3002<\/p>\n\n\n\n

\u3000\u3000(3)\u4f7f\u7528\u66f4\u597d\u7684\u7f16\u7801\u65b9\u6848<\/strong>\uff1a\u4f7f\u7528\u66f4\u597d\u7684\u7f16\u7801\u65b9\u6848\u53ef\u4ee5\u51cf\u5c11\u9519\u8bef\uff0c\u4ece\u800c\u51cf\u5c11\u91cd\u4f20\u548c\u5ef6\u8fdf\u65f6\u95f4\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u9053\u5229\u7528\u7387\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Turbo\u7f16\u7801\u4ee3\u66ff\u5377\u79ef\u7801\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u6548\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000(4)\u4f7f\u7528\u66f4\u597d\u7684\u8c03\u5ea6\u7b97\u6cd5<\/strong>\uff1a\u4f7f\u7528\u66f4\u597d\u7684\u8c03\u5ea6\u7b97\u6cd5\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u7cfb\u7edf\u8d44\u6e90\uff0c\u4ece\u800c\u63d0\u9ad8\u4fe1\u9053\u5229\u7528\u7387\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u6700\u5927\u6bd4\u7387\u8c03\u5ea6(MRS)\u7b97\u6cd5\u53ef\u4ee5\u5728\u591a\u4e2a\u7528\u6237\u4e4b\u95f4\u5206\u914d\u8d44\u6e90\uff0c\u4ee5\u6700\u5927\u5316\u7cfb\u7edf\u6548\u7387\u3002<\/p>\n\n\n\n

\u3000\u30003. \u603b\u7ed3<\/h2>\n\n\n\n

\u3000\u3000\u4fe1\u9053\u5229\u7528\u7387\u662f\u8861\u91cf\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u6548\u7387\u7684\u91cd\u8981\u6307\u6807\u3002\u5b83\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u4f20\u8f93\u7684\u6709\u6548\u6570\u636e\u4f4d\u6570\u4e0e\u4f20\u8f93\u603b\u4f4d\u6570\u7684\u6bd4\u4f8b\u6765\u8ba1\u7b97\u3002\u4e3a\u4e86\u4f18\u5316\u4fe1\u9053\u5229\u7528\u7387\uff0c\u53ef\u4ee5\u91c7\u53d6\u4e00\u4e9b\u65b9\u6cd5\uff0c\u4f8b\u5982\u589e\u52a0\u5e26\u5bbd\uff0c\u4f7f\u7528\u66f4\u9ad8\u7ea7\u7684\u8c03\u5236\u65b9\u5f0f\uff0c\u4f7f\u7528\u66f4\u597d\u7684\u7f16\u7801\u65b9\u6848\u4ee5\u53ca\u4f7f\u7528\u66f4\u597d\u7684\u8c03\u5ea6\u7b97\u6cd5\u3002\u4f18\u5316\u4fe1\u9053\u5229\u7528\u7387\u53ef\u4ee5\u63d0\u9ad8\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u7684\u6548\u7387\uff0c\u4ece\u800c\u63d0\u9ad8\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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