{"id":27422,"date":"2023-09-15T15:26:01","date_gmt":"2023-09-15T07:26:01","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=27422"},"modified":"2023-09-15T15:26:01","modified_gmt":"2023-09-15T07:26:01","slug":"xzbdyxys","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/27422.html","title":{"rendered":"\u4fe1\u566a\u6bd4\u7684\u5f71\u54cd\u56e0\u7d20"},"content":{"rendered":"

  \u4fe1\u566a\u6bd4\uff08Signal-to-Noise Ratio\uff0c\u7b80\u79f0SNR\uff09\u662f\u4e00\u4e2a\u8861\u91cf\u4fe1\u53f7\u4e0e\u566a\u58f0\u4e4b\u95f4\u6bd4\u4f8b\u7684\u91cf\u5ea6\uff0c\u5b83\u662f\u8861\u91cf\u4fe1\u53f7\u8d28\u91cf\u7684\u4e00\u4e2a\u91cd\u8981\u6307\u6807\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u8bc4\u4f30\u4fe1\u53f7\u7684\u8d28\u91cf\uff0c\u4ece\u800c\u6307\u5bfc\u6211\u4eec\u5982\u4f55\u63d0\u9ad8\u4fe1\u53f7\u7684\u8d28\u91cf\u3002\u672c\u6587\u5c06\u8ba8\u8bba\u4fe1\u566a\u6bd4\u7684\u5f71\u54cd\u56e0\u7d20\uff0c\u4ee5\u53ca\u5982\u4f55\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u4ee5\u6539\u5584\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n

\u4fe1\u566a\u6bd4\u7684\u5b9a\u4e49<\/h2>\n

  \u4fe1\u566a\u6bd4\uff08SNR\uff09\u662f\u4fe1\u53f7\u4e0e\u566a\u58f0\u4e4b\u95f4\u7684\u6bd4\u503c\uff0c\u8868\u793a\u4fe1\u53f7\u7684\u5f3a\u5ea6\u76f8\u5bf9\u4e8e\u566a\u58f0\u7684\u5f3a\u5ea6\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u8861\u91cf\u4fe1\u53f7\u7684\u8d28\u91cf\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u8861\u91cf\u4fe1\u53f7\u7684\u6e05\u6670\u5ea6\u3002\u4fe1\u566a\u6bd4\u7684\u5355\u4f4d\u662fdB\uff08\u5206\u8d1d\uff09\uff0c\u5176\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1aSNR\uff1d20log\uff08S\/N\uff09\uff0c\u5176\u4e2dS\u4e3a\u4fe1\u53f7\u7684\u5f3a\u5ea6\uff0cN\u4e3a\u566a\u58f0\u7684\u5f3a\u5ea6\u3002<\/p>\n

\u4fe1\u566a\u6bd4\u7684\u5f71\u54cd\u56e0\u7d20<\/h2>\n

1.\u4fe1\u53f7\u5f3a\u5ea6<\/h3>\n

  \u4fe1\u53f7\u5f3a\u5ea6\u662f\u5f71\u54cd\u4fe1\u566a\u6bd4\u7684\u6700\u91cd\u8981\u56e0\u7d20\u3002\u4fe1\u53f7\u8d8a\u5f3a\uff0c\u4fe1\u566a\u6bd4\u5c31\u8d8a\u9ad8\uff0c\u53cd\u4e4b\uff0c\u4fe1\u53f7\u8d8a\u5f31\uff0c\u4fe1\u566a\u6bd4\u5c31\u8d8a\u4f4e\u3002\u56e0\u6b64\uff0c\u8981\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u6700\u91cd\u8981\u7684\u662f\u63d0\u9ad8\u4fe1\u53f7\u7684\u5f3a\u5ea6\u3002<\/p>\n

2.\u566a\u58f0\u5f3a\u5ea6<\/h3>\n

  \u566a\u58f0\u5f3a\u5ea6\u4e5f\u662f\u5f71\u54cd\u4fe1\u566a\u6bd4\u7684\u91cd\u8981\u56e0\u7d20\u3002\u566a\u58f0\u8d8a\u5f3a\uff0c\u4fe1\u566a\u6bd4\u5c31\u8d8a\u4f4e\uff0c\u53cd\u4e4b\uff0c\u566a\u58f0\u8d8a\u5f31\uff0c\u4fe1\u566a\u6bd4\u5c31\u8d8a\u9ad8\u3002\u56e0\u6b64\uff0c\u8981\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u4e5f\u9700\u8981\u51cf\u5c11\u566a\u58f0\u7684\u5f3a\u5ea6\u3002<\/p>\n

3.\u4fe1\u53f7\u6e90<\/h3>\n

  \u4fe1\u53f7\u6e90\u4e5f\u662f\u5f71\u54cd\u4fe1\u566a\u6bd4\u7684\u91cd\u8981\u56e0\u7d20\u3002\u4e0d\u540c\u7684\u4fe1\u53f7\u6e90\u5177\u6709\u4e0d\u540c\u7684\u4fe1\u566a\u6bd4\uff0c\u56e0\u6b64\uff0c\u8981\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u53ef\u4ee5\u9009\u62e9\u5177\u6709\u8f83\u9ad8\u4fe1\u566a\u6bd4\u7684\u4fe1\u53f7\u6e90\u3002<\/p>\n

4.\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84<\/h3>\n

  \u4fe1\u53f7\u4f20\u8f93\u8def\u5f84\u4e5f\u662f\u5f71\u54cd\u4fe1\u566a\u6bd4\u7684\u91cd\u8981\u56e0\u7d20\u3002\u4f20\u8f93\u8def\u5f84\u8d8a\u957f\uff0c\u4fe1\u53f7\u4f1a\u53d7\u5230\u66f4\u591a\u7684\u5e72\u6270\uff0c\u4ece\u800c\u5bfc\u81f4\u4fe1\u566a\u6bd4\u964d\u4f4e\u3002\u56e0\u6b64\uff0c\u8981\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u53ef\u4ee5\u5c3d\u91cf\u51cf\u5c11\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84\u7684\u957f\u5ea6\u3002<\/p>\n

\u5982\u4f55\u63d0\u9ad8\u4fe1\u566a\u6bd4<\/h2>\n

1.\u63d0\u9ad8\u4fe1\u53f7\u5f3a\u5ea6<\/h3>\n

  \u8981\u63d0\u9ad8\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u53ef\u4ee5\u91c7\u7528\u589e\u52a0\u53d1\u5c04\u529f\u7387\u3001\u6539\u5584\u53d1\u5c04\u5929\u7ebf\u3001\u589e\u52a0\u53d1\u5c04\u5929\u7ebf\u6570\u91cf\u7b49\u65b9\u6cd5\u3002<\/p>\n

2.\u51cf\u5c11\u566a\u58f0\u5f3a\u5ea6<\/h3>\n

  \u8981\u51cf\u5c11\u566a\u58f0\u5f3a\u5ea6\uff0c\u53ef\u4ee5\u91c7\u7528\u6d88\u9664\u566a\u58f0\u6e90\u3001\u6539\u5584\u63a5\u6536\u5929\u7ebf\u3001\u589e\u52a0\u63a5\u6536\u5929\u7ebf\u6570\u91cf\u7b49\u65b9\u6cd5\u3002<\/p>\n

3.\u9009\u62e9\u9ad8\u4fe1\u566a\u6bd4\u7684\u4fe1\u53f7\u6e90<\/h3>\n

  \u8981\u9009\u62e9\u9ad8\u4fe1\u566a\u6bd4\u7684\u4fe1\u53f7\u6e90\uff0c\u53ef\u4ee5\u901a\u8fc7\u6bd4\u8f83\u4e0d\u540c\u4fe1\u53f7\u6e90\u7684\u4fe1\u566a\u6bd4\uff0c\u9009\u62e9\u4fe1\u566a\u6bd4\u6700\u9ad8\u7684\u4fe1\u53f7\u6e90\u3002<\/p>\n

4.\u7f29\u77ed\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84<\/h3>\n

  \u8981\u7f29\u77ed\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84\uff0c\u53ef\u4ee5\u91c7\u7528\u6539\u5584\u4fe1\u53f7\u4f20\u8f93\u7ebf\u8def\u3001\u6539\u5584\u53d1\u5c04\u548c\u63a5\u6536\u7cfb\u7edf\u7b49\u65b9\u6cd5\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u4fe1\u566a\u6bd4\u662f\u8861\u91cf\u4fe1\u53f7\u8d28\u91cf\u7684\u91cd\u8981\u6307\u6807\uff0c\u5b83\u7684\u5f71\u54cd\u56e0\u7d20\u5305\u62ec\u4fe1\u53f7\u5f3a\u5ea6\u3001\u566a\u58f0\u5f3a\u5ea6\u3001\u4fe1\u53f7\u6e90\u548c\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84\u7b49\u3002<\/strong>\u8981\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u53ef\u4ee5\u91c7\u53d6\u63d0\u9ad8\u4fe1\u53f7\u5f3a\u5ea6\u3001\u51cf\u5c11\u566a\u58f0\u5f3a\u5ea6\u3001\u9009\u62e9\u9ad8\u4fe1\u566a\u6bd4\u7684\u4fe1\u53f7\u6e90\u548c\u7f29\u77ed\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84\u7b49\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4fe1\u566a\u6bd4\uff08Signal-to-Noise Ratio\uff0c\u7b80\u79f0SNR\uff09\u662f\u4e00\u4e2a\u8861\u91cf\u4fe1\u53f7\u4e0e\u566a\u58f0\u4e4b\u95f4\u6bd4\u4f8b\u7684\u91cf\u5ea6\uff0c\u5b83\u662f\u8861\u91cf\u4fe1\u53f7\u8d28\u91cf\u7684\u4e00\u4e2a\u91cd\u8981\u6307\u6807\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u8bc4\u4f30\u4fe1\u53f7\u7684\u8d28\u91cf\uff0c\u4ece\u800c\u6307\u5bfc\u6211\u4eec<\/p>\n","protected":false},"author":1,"featured_media":3671,"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-27422","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\/27422"}],"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=27422"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/27422\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/3671"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=27422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=27422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=27422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}