{"id":7035,"date":"2023-07-21T09:53:24","date_gmt":"2023-07-21T01:53:24","guid":{"rendered":"\/\/www.dealsbon.com\/?p=7035"},"modified":"2023-07-21T09:54:23","modified_gmt":"2023-07-21T01:54:23","slug":"xzbzmcl","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/7035.html","title":{"rendered":"\u4fe1\u566a\u6bd4\u600e\u4e48\u6d4b\u91cf\uff1f"},"content":{"rendered":"\n

\u3000\u3000\u5728\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u4fe1\u566a\u6bd4\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u5b83\u53cd\u6620\u4e86\u4fe1\u53f7\u4e0e\u566a\u58f0\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u4fe1\u566a\u6bd4\u8d8a\u9ad8\uff0c\u4fe1\u53f7\u7684\u8d28\u91cf\u5c31\u8d8a\u597d\u3002\u9891\u8c31\u4eea\u662f\u4e00\u79cd\u7528\u4e8e\u6d4b\u8bd5\u4fe1\u53f7\u9891\u7387\u6210\u5206\u548c\u4fe1\u53f7\u5f3a\u5ea6\u7684\u4eea\u5668\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u548c\u9891\u8c31\u4eea\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001\u4fe1\u566a\u6bd4\u6d4b\u8bd5<\/h2>\n\n\n\n

\u3000\u30001. \u4fe1\u566a\u6bd4\u7684\u5b9a\u4e49<\/h3>\n\n\n\n

\u3000\u3000\u4fe1\u566a\u6bd4(Signal-to-Noise Ratio\uff0cSNR)\u662f\u6307\u4fe1\u53f7\u529f\u7387\u4e0e\u566a\u58f0\u529f\u7387\u4e4b\u6bd4\u3002\u5728\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u4fe1\u566a\u6bd4\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u5b83\u53cd\u6620\u4e86\u4fe1\u53f7\u4e0e\u566a\u58f0\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u4fe1\u566a\u6bd4\u8d8a\u9ad8\uff0c\u4fe1\u53f7\u7684\u8d28\u91cf\u5c31\u8d8a\u597d\u3002<\/p>\n\n\n\n

\u3000\u30002. \u4fe1\u566a\u6bd4\u6d4b\u8bd5\u7684\u65b9\u6cd5<\/h3>\n\n\n\n

\u3000\u3000\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

\u3000\u3000(1)\u76f4\u63a5\u6d4b\u91cf\u6cd5<\/h4>\n\n\n\n

\u3000\u3000\u76f4\u63a5\u6d4b\u91cf\u6cd5\u662f\u6307\u5728\u63a5\u6536\u7aef\u76f4\u63a5\u6d4b\u91cf\u4fe1\u53f7\u548c\u566a\u58f0\u7684\u529f\u7387\uff0c\u5e76\u8ba1\u7b97\u5b83\u4eec\u4e4b\u95f4\u7684\u6bd4\u503c\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u7b80\u5355\u6613\u884c\uff0c\u4f46\u9700\u8981\u5728\u63a5\u6536\u7aef\u8fdb\u884c\u6d4b\u8bd5\uff0c\u6d4b\u8bd5\u7ed3\u679c\u4f1a\u53d7\u5230\u63a5\u6536\u673a\u7684\u6027\u80fd\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u3000\u3000(2)\u95f4\u63a5\u6d4b\u91cf\u6cd5<\/h4>\n\n\n\n

\u3000\u3000\u95f4\u63a5\u6d4b\u91cf\u6cd5\u662f\u6307\u901a\u8fc7\u6d4b\u91cf\u5176\u4ed6\u53c2\u6570\u6765\u8ba1\u7b97\u4fe1\u566a\u6bd4\u3002\u6bd4\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u6d4b\u91cf\u8bef\u7801\u7387(Bit Error Rate\uff0cBER)\u6765\u8ba1\u7b97\u4fe1\u566a\u6bd4\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4e0d\u9700\u8981\u5728\u63a5\u6536\u7aef\u8fdb\u884c\u6d4b\u8bd5\uff0c\u6d4b\u8bd5\u7ed3\u679c\u53d7\u5230\u63a5\u6536\u673a\u7684\u6027\u80fd\u5f71\u54cd\u8f83\u5c0f\u3002<\/p>\n\n\n\n

\u3000\u30003. \u4fe1\u566a\u6bd4\u6d4b\u8bd5\u7684\u5e94\u7528<\/h3>\n\n\n\n

\u3000\u3000\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u5e7f\u6cdb\u5e94\u7528\u4e8e\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u6bd4\u5982\u65e0\u7ebf\u7535\u89c6\u3001\u65e0\u7ebf\u7535\u4fe1\u3001\u65e0\u7ebf\u7535\u5bfc\u822a\u7b49\u3002\u5728\u65e0\u7ebf\u7535\u89c6\u4e2d\uff0c\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u53ef\u4ee5\u7528\u4e8e\u8bc4\u4f30\u7535\u89c6\u4fe1\u53f7\u7684\u8d28\u91cf;\u5728\u65e0\u7ebf\u7535\u4fe1\u4e2d\uff0c\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u53ef\u4ee5\u7528\u4e8e\u8bc4\u4f30\u901a\u4fe1\u8d28\u91cf;\u5728\u65e0\u7ebf\u7535\u5bfc\u822a\u4e2d\uff0c\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u53ef\u4ee5\u7528\u4e8e\u8bc4\u4f30\u5bfc\u822a\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001\u9891\u8c31\u4eea\u4f7f\u7528\u65b9\u6cd5<\/h2>\n\n\n\n

\u3000\u30001. \u9891\u8c31\u4eea\u7684\u5b9a\u4e49<\/h3>\n\n\n\n

\u3000\u3000\u9891\u8c31\u4eea\u662f\u4e00\u79cd\u7528\u4e8e\u6d4b\u8bd5\u4fe1\u53f7\u9891\u7387\u6210\u5206\u548c\u4fe1\u53f7\u5f3a\u5ea6\u7684\u4eea\u5668\u3002\u5b83\u53ef\u4ee5\u5c06\u4fe1\u53f7\u7684\u9891\u8c31\u5206\u89e3\u6210\u4e0d\u540c\u9891\u7387\u7684\u6210\u5206\uff0c\u5e76\u663e\u793a\u51fa\u6bcf\u4e2a\u9891\u7387\u6210\u5206\u7684\u4fe1\u53f7\u5f3a\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u30002. \u9891\u8c31\u4eea<\/a>\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n\n\n\n

\u3000\u3000\u9891\u8c31\u4eea\u7684\u5de5\u4f5c\u539f\u7406\u662f\u57fa\u4e8e\u5085\u91cc\u53f6\u53d8\u6362\u539f\u7406\u3002\u5b83\u901a\u8fc7\u5c06\u4fe1\u53f7\u5206\u89e3\u6210\u4e0d\u540c\u7684\u9891\u7387\u6210\u5206\uff0c\u5e76\u6d4b\u91cf\u6bcf\u4e2a\u9891\u7387\u6210\u5206\u7684\u4fe1\u53f7\u5f3a\u5ea6\u6765\u663e\u793a\u4fe1\u53f7\u7684\u9891\u8c31\u3002<\/p>\n\n\n\n

\u3000\u30003. \u9891\u8c31\u4eea\u7684\u4f7f\u7528\u65b9\u6cd5<\/h3>\n\n\n\n

\u3000\u3000\u4f7f\u7528\u9891\u8c31\u4eea\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n

\u3000\u3000(1)\u9009\u62e9\u5408\u9002\u7684\u63a2\u5934<\/h3>\n\n\n\n

\u3000\u3000\u4e0d\u540c\u7684\u9891\u8c31\u4eea\u53ef\u80fd\u9700\u8981\u4e0d\u540c\u7684\u63a2\u5934\u3002\u9009\u62e9\u5408\u9002\u7684\u63a2\u5934\u53ef\u4ee5\u4fdd\u8bc1\u6d4b\u8bd5\u7684\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000(2)\u8bbe\u7f6e\u6d4b\u8bd5\u53c2\u6570<\/h3>\n\n\n\n

\u3000\u3000\u5728\u8fdb\u884c\u6d4b\u8bd5\u4e4b\u524d\uff0c\u9700\u8981\u8bbe\u7f6e\u6d4b\u8bd5\u53c2\u6570\uff0c\u6bd4\u5982\u6d4b\u8bd5\u9891\u6bb5\u3001\u6d4b\u8bd5\u5e26\u5bbd\u7b49\u3002\u8fd9\u4e9b\u53c2\u6570\u7684\u8bbe\u7f6e\u4f1a\u5f71\u54cd\u6d4b\u8bd5\u7ed3\u679c\u7684\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000(3)\u8fdb\u884c\u6d4b\u8bd5<\/h3>\n\n\n\n

\u3000\u3000\u8bbe\u7f6e\u597d\u6d4b\u8bd5\u53c2\u6570\u540e\uff0c\u53ef\u4ee5\u8fdb\u884c\u6d4b\u8bd5\u4e86\u3002\u5728\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u6ce8\u610f\u4fdd\u6301\u6d4b\u8bd5\u73af\u5883\u7684\u7a33\u5b9a\uff0c\u907f\u514d\u5916\u754c\u5e72\u6270\u3002<\/p>\n\n\n\n

\u3000\u30004. \u9891\u8c31\u4eea\u7684\u5e94\u7528<\/h2>\n\n\n\n

\u3000\u3000\u9891\u8c31\u4eea\u5e7f\u6cdb\u5e94\u7528\u4e8e\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u6bd4\u5982\u65e0\u7ebf\u7535\u89c6\u3001\u65e0\u7ebf\u7535\u4fe1\u3001\u65e0\u7ebf\u7535\u5bfc\u822a\u7b49\u3002\u5728\u65e0\u7ebf\u7535\u89c6\u4e2d\uff0c\u9891\u8c31\u4eea\u53ef\u4ee5\u7528\u4e8e\u8bc4\u4f30\u7535\u89c6\u4fe1\u53f7\u7684\u9891\u8c31\u7279\u5f81;\u5728\u65e0\u7ebf\u7535\u4fe1\u4e2d\uff0c\u9891\u8c31\u4eea\u53ef\u4ee5\u7528\u4e8e\u8bc4\u4f30\u901a\u4fe1\u4fe1\u53f7\u7684\u9891\u8c31\u7279\u5f81;\u5728\u65e0\u7ebf\u7535\u5bfc\u822a\u4e2d\uff0c\u9891\u8c31\u4eea\u53ef\u4ee5\u7528\u4e8e\u8bc4\u4f30\u5bfc\u822a\u7cfb\u7edf\u7684\u9891\u8c31\u7279\u5f81\u3002<\/p>\n\n\n\n

\u3000\u3000\u603b\u7ed3<\/p>\n\n\n\n

\u3000\u3000\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u548c\u9891\u8c31\u4eea\u4f7f\u7528\u65b9\u6cd5\u662f\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u6d4b\u8bd5\u65b9\u6cd5\u548c\u6d4b\u8bd5\u4eea\u5668\u3002\u901a\u8fc7\u4fe1\u566a\u6bd4\u6d4b\u8bd5\u53ef\u4ee5\u8bc4\u4f30\u4fe1\u53f7\u7684\u8d28\u91cf\uff0c\u901a\u8fc7\u9891\u8c31\u4eea\u53ef\u4ee5\u8bc4\u4f30\u4fe1\u53f7\u7684\u9891\u8c31\u7279\u5f81\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u6d4b\u8bd5\u65b9\u6cd5\u548c\u6d4b\u8bd5\u4eea\u5668\uff0c\u4ee5\u4fdd\u8bc1\u6d4b\u8bd5\u7ed3\u679c\u7684\u51c6\u786e\u6027\u3002<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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