{"id":68207,"date":"2023-12-22T00:06:53","date_gmt":"2023-12-21T16:06:53","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=68207"},"modified":"2023-12-22T00:06:53","modified_gmt":"2023-12-21T16:06:53","slug":"xzbwddxd","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/68207.html","title":{"rendered":"\u4fe1\u566a\u6bd4\u4e3a30db\u7684\u4fe1\u9053"},"content":{"rendered":"

  \u672c\u6587\u5c06\u4ecb\u7ecd\u4fe1\u566a\u6bd4\u4e3a30db\u7684\u4fe1\u9053<\/a>\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\u7684\u5b9a\u4e49<\/h2>\n

  \u4fe1\u566a\u6bd4\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<\/h3>\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

  \u4fe1\u566a\u6bd4\u7684\u91cd\u8981\u6027<\/h3>\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

\u4fe1\u566a\u6bd4\u4e3a30db\u7684\u4fe1\u9053<\/h2>\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\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\u4e3a30db\u7684\u901a\u4fe1\u7cfb\u7edf<\/a><\/h3>\n

  \u8bb8\u591a\u901a\u4fe1\u7cfb\u7edf\uff0c\u5982Wi-Fi\u3001\u8702\u7a9d\u7f51\u7edc<\/a>\u7b49\uff0c\u90fd\u9700\u8981\u8db3\u591f\u9ad8\u7684\u4fe1\u566a\u6bd4\u6765\u4fdd\u969c\u901a\u4fe1\u8d28\u91cf\u3002\u5f53\u4fe1\u566a\u6bd4\u8fbe\u523030db\u65f6\uff0c\u8fd9\u4e9b\u7cfb\u7edf\u80fd\u591f\u7a33\u5b9a\u5730\u4f20\u8f93\u6570\u636e\uff0c\u4fdd\u8bc1\u7528\u6237\u7684\u901a\u4fe1\u4f53\u9a8c\u3002<\/p>\n

  \u4fe1\u566a\u6bd4\u4e3a30db\u7684\u58f0\u97f3\u5904\u7406<\/h3>\n

  \u5728\u97f3\u9891\u5904\u7406\u9886\u57df\uff0c\u4fe1\u566a\u6bd4\u4e3a30db\u610f\u5473\u7740\u6e05\u6670\u800c\u5bcc\u6709\u7ec6\u8282\u7684\u97f3\u9891\u4f53\u9a8c\uff0c\u9002\u7528\u4e8e\u97f3\u4e50\u3001\u8bed\u97f3\u901a\u4fe1\u7b49\u573a\u666f\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u4fe1\u566a\u6bd4\u4e3a30db\u7684\u4fe1\u9053\u5728\u901a\u4fe1\u548c\u58f0\u97f3\u5904\u7406\u9886\u57df\u5177\u6709\u91cd\u8981\u610f\u4e49\uff0c\u53ef\u4fdd\u969c\u826f\u597d\u7684\u4fe1\u606f\u4f20\u8f93\u548c\u63a5\u6536\u8d28\u91cf\u3002<\/strong>\u4e86\u89e3\u4fe1\u566a\u6bd4\u7684\u542b\u4e49\u548c\u5f71\u54cd\u5bf9\u76f8\u5173\u9886\u57df\u7684\u4e13\u4e1a\u4eba\u58eb\u4ee5\u53ca\u79d1\u6280\u7231\u597d\u8005\u90fd\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u672c\u6587\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\u4fe1\u566a\u6bd4\u7684\u5b9a\u4e49\u4fe1\u566a\u6bd4\uff08Signal-to-NoiseRatio\uff0cSNR\uff09\u662f\u4e00\u4e2a\u7528\u6765\u8861\u91cf\u4fe1\u53f7<\/p>\n","protected":false},"author":1,"featured_media":64231,"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":[185],"class_list":["post-68207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-xzb"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/68207","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=68207"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/68207\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/64231"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=68207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=68207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=68207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}