{"id":73472,"date":"2023-12-29T06:22:41","date_gmt":"2023-12-28T22:22:41","guid":{"rendered":"\/\/www.viralrail.com\/?p=73472"},"modified":"2023-12-29T06:22:41","modified_gmt":"2023-12-28T22:22:41","slug":"xzbwddxd","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/73472.html","title":{"rendered":"\u4fe1\u566a\u6bd4\u4e3a30db\u7684\u4fe1\u9053"},"content":{"rendered":"
\u4eca\u5929\u6211\u4eec\u5c06\u4ecb\u7ecd\u4fe1\u566a\u6bd4\u4e3a30db\u7684\u4fe1\u9053\uff0c\u63a2\u8ba8\u5176\u5728\u901a\u4fe1\u9886\u57df\u7684\u91cd\u8981\u6027\u4ee5\u53ca\u76f8\u5173\u6982\u5ff5\u3002<\/p>\n
\u4fe1\u566a\u6bd4<\/a>\uff08Signal-to-Noise Ratio\uff0cSNR\uff09\u662f\u4e00\u4e2a\u7528\u6765\u8861\u91cf\u4fe1\u53f7\u4e0e\u566a\u58f0\u5f3a\u5ea6\u4e4b\u95f4\u5173\u7cfb\u7684\u6307\u6807\u3002\u5728\u901a\u4fe1\u9886\u57df\u4e2d\uff0c\u4fe1\u53f7\u662f\u6307\u4f20\u8f93\u7684\u6709\u6548\u4fe1\u606f\uff0c\u566a\u58f0\u662f\u6307\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5e72\u6270\u548c\u975e\u9884\u671f\u7684\u4fe1\u53f7\u3002<\/p>\n \u4fe1\u566a\u6bd4\u7684\u8ba1\u7b97\u516c\u5f0f\u901a\u5e38\u4e3a\uff1aSNR = 10 * log10(S \/ N)\uff0c\u5176\u4e2dS\u4ee3\u8868\u4fe1\u53f7\u7684\u529f\u7387\uff0cN\u4ee3\u8868\u566a\u58f0\u7684\u529f\u7387\u3002\u5728\u5177\u4f53\u7684\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u4fe1\u53f7\u548c\u566a\u58f0\u7684\u529f\u7387\u53ef\u4ee5\u901a\u8fc7\u7269\u7406\u5b9e\u9a8c\u6216\u6a21\u62df\u5f97\u5230\u3002<\/p>\n \u5728\u901a\u4fe1\u4e2d\uff0c\u9ad8\u4fe1\u566a\u6bd4\u610f\u5473\u7740\u4fe1\u53f7\u7684\u5f3a\u5ea6\u8fdc\u8fdc\u8d85\u8fc7\u4e86\u566a\u58f0\uff0c\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u4fe1\u606f\u7684\u51c6\u786e\u4f20\u8f93\u548c\u53ef\u9760\u63a5\u6536\u3002\u4f4e\u4fe1\u566a\u6bd4\u5219\u4f1a\u5bfc\u81f4\u4fe1\u606f\u4e22\u5931\uff0c\u751a\u81f3\u65e0\u6cd5\u6b63\u5e38\u901a\u4fe1\u3002<\/p>\n \u5f53\u4fe1\u9053\u7684\u4fe1\u566a\u6bd4\u4e3a30db\u65f6\uff0c\u8fd9\u610f\u5473\u7740\u4fe1\u53f7\u7684\u529f\u7387\u662f\u566a\u58f0\u76841000\u500d\u3002\u8fd9\u6837\u7684\u4fe1\u9053<\/a>\u901a\u5e38\u53ef\u4ee5\u4fdd\u8bc1\u826f\u597d\u7684\u901a\u4fe1\u8d28\u91cf\uff0c\u9002\u7528\u4e8e\u8bb8\u591a\u5b9e\u9645\u5e94\u7528\u573a\u666f\u3002<\/p>\n \u4fe1\u566a\u6bd4\u7684\u8ba1\u7b97<\/h3>\n
\u4fe1\u566a\u6bd4\u7684\u91cd\u8981\u6027<\/h3>\n
\u4fe1\u566a\u6bd4\u4e3a30db\u7684\u4fe1\u9053<\/h2>\n
\u4fe1\u566a\u6bd4\u4e3a30db\u7684\u901a\u4fe1\u7cfb\u7edf<\/h3>\n