{"id":6610,"date":"2023-07-16T12:03:36","date_gmt":"2023-07-16T04:03:36","guid":{"rendered":"\/\/www.dealsbon.com\/?p=6610"},"modified":"2023-07-16T12:25:44","modified_gmt":"2023-07-16T04:25:44","slug":"xzbsnzmjsxddksds","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/6610.html","title":{"rendered":"\u4fe1\u566a\u6bd4s\/n\u600e\u4e48\u8ba1\u7b97,\u4fe1\u9053\u5e26\u5bbd\u662f\u591a\u5c11?"},"content":{"rendered":"\n

\u3000\u3000\u4fe1\u566a\u6bd4(Signal-to-Noise Ratio\uff0c\u7b80\u79f0SNR)\u662f\u6307\u4fe1\u53f7\u4e0e\u566a\u58f0\u7684\u6bd4\u503c\uff0c\u901a\u5e38\u7528\u6765\u8868\u793a\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u566a\u58f0\u7684\u5e72\u6270\u7a0b\u5ea6\u3002\u5728\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u4fe1\u566a\u6bd4\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u5230\u901a\u4fe1\u8d28\u91cf\u7684\u597d\u574f\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001\u4fe1\u566a\u6bd4\u7684\u8ba1\u7b97\u65b9\u6cd5<\/h2>\n\n\n\n

\u3000\u3000\u4fe1\u566a\u6bd4\u7684\u8ba1\u7b97\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u5c31\u662f\u5c06\u4fe1\u53f7\u7684\u529f\u7387\u9664\u4ee5\u566a\u58f0\u7684\u529f\u7387\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e00\u4e2a\u4fe1\u53f7\u7684\u529f\u7387\u4e3a10\u74e6\uff0c\u800c\u566a\u58f0\u7684\u529f\u7387\u4e3a1\u74e6\uff0c\u90a3\u4e48\u5b83\u4eec\u7684\u6bd4\u503c\u5c31\u662f10:1.\u4e5f\u5c31\u662f10dB\u3002<\/p>\n\n\n\n

\u3000\u3000\u4fe1\u566a\u6bd4\u7684\u5355\u4f4d\u5e38\u7528dB(\u5206\u8d1d)\u8868\u793a\uff0c\u8fd9\u662f\u4e00\u79cd\u76f8\u5bf9\u5355\u4f4d\uff0c\u7528\u6765\u8868\u793a\u4e24\u4e2a\u529f\u7387\u4e4b\u95f4\u7684\u6bd4\u503c\u3002\u5177\u4f53\u6765\u8bf4\uff0c1dB\u8868\u793a10*log10(P1\/P2)\uff0c\u5176\u4e2dP1\u548cP2\u5206\u522b\u662f\u4e24\u4e2a\u529f\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001\u4fe1\u9053\u5e26\u5bbd\u7684\u6982\u5ff5<\/h2>\n\n\n\n

\u3000\u3000\u4fe1\u9053\u5e26\u5bbd\u662f\u6307\u4fe1\u9053\u80fd\u591f\u901a\u8fc7\u7684\u6700\u9ad8\u9891\u7387\uff0c\u901a\u5e38\u7528\u8d6b\u5179(Hz)\u8868\u793a\u3002\u5728\u6570\u5b57\u901a\u4fe1\u4e2d\uff0c\u4fe1\u9053\u5e26\u5bbd\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u5230\u6570\u636e\u4f20\u8f93\u901f\u7387\u7684\u5927\u5c0f\u3002<\/p>\n\n\n\n

\u3000\u3000\u4fe1\u9053\u5e26\u5bbd\u7684\u5927\u5c0f\u53d6\u51b3\u4e8e\u4fe1\u9053\u672c\u8eab\u7684\u7279\u6027\uff0c\u4f8b\u5982\u4fe1\u9053\u7684\u4f20\u8f93\u4ecb\u8d28\u3001\u8ddd\u79bb\u3001\u566a\u58f0\u7b49\u3002\u5728\u8bbe\u8ba1\u901a\u4fe1\u7cfb\u7edf\u65f6\uff0c\u9700\u8981\u6839\u636e\u4fe1\u9053\u7684\u7279\u6027\u6765\u9009\u62e9\u5408\u9002\u7684\u8c03\u5236\u65b9\u5f0f\u548c\u7f16\u7801\u65b9\u5f0f\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u4f20\u8f93\u6548\u679c\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001\u4fe1\u566a\u6bd4\u548c\u4fe1\u9053\u5e26\u5bbd\u7684\u5173\u7cfb<\/h2>\n\n\n\n

\u3000\u3000\u4fe1\u566a\u6bd4\u548c\u4fe1\u9053\u5e26\u5bbd\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u53c2\u6570\uff0c\u5b83\u4eec\u4e4b\u95f4\u6ca1\u6709\u76f4\u63a5\u7684\u5173\u7cfb\u3002\u4f46\u662f\uff0c\u5728\u6570\u5b57\u901a\u4fe1\u4e2d\uff0c\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7740\u4e00\u5b9a\u7684\u8054\u7cfb\u3002<\/p>\n\n\n\n

\u3000\u3000\u9996\u5148\uff0c\u4fe1\u566a\u6bd4\u8d8a\u9ad8\uff0c\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u5c31\u8d8a\u9ad8\u3002\u56e0\u4e3a\u4fe1\u566a\u6bd4\u8d8a\u9ad8\uff0c\u566a\u58f0\u5bf9\u4fe1\u53f7\u7684\u5f71\u54cd\u5c31\u8d8a\u5c0f\uff0c\u6570\u636e\u7684\u8bef\u7801\u7387\u5c31\u8d8a\u4f4e\uff0c\u4f20\u8f93\u6548\u679c\u5c31\u8d8a\u597d\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u65f6\uff0c\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u4fe1\u566a\u6bd4\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u53ef\u9760\u4f20\u8f93\u3002<\/p>\n\n\n\n

\u3000\u3000\u5176\u6b21\uff0c\u4fe1\u9053\u5e26\u5bbd\u8d8a\u5927\uff0c\u6570\u636e\u4f20\u8f93\u7684\u901f\u7387\u5c31\u8d8a\u5feb\u3002\u56e0\u4e3a\u4fe1\u9053\u5e26\u5bbd\u8d8a\u5927\uff0c\u4fe1\u53f7\u7684\u5e26\u5bbd\u5c31\u8d8a\u5bbd\uff0c\u53ef\u4ee5\u4f20\u8f93\u66f4\u591a\u7684\u6570\u636e\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u65f6\uff0c\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u4fe1\u9053\u5e26\u5bbd\uff0c\u4ee5\u8fbe\u5230\u6700\u5927\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u6700\u540e\uff0c\u5728\u6570\u5b57\u901a\u4fe1\u4e2d\uff0c\u9700\u8981\u5e73\u8861\u4fe1\u566a\u6bd4\u548c\u4fe1\u9053\u5e26\u5bbd\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u4fe1\u566a\u6bd4\u8d8a\u9ad8\uff0c\u4fe1\u9053\u5e26\u5bbd\u5c31\u8d8a\u7a84\uff0c\u53ef\u4ee5\u4f20\u8f93\u7684\u6570\u636e\u5c31\u8d8a\u5c11;\u4fe1\u566a\u6bd4\u8d8a\u4f4e\uff0c\u4fe1\u9053\u5e26\u5bbd\u5c31\u8d8a\u5bbd\uff0c\u53ef\u4ee5\u4f20\u8f93\u7684\u6570\u636e\u5c31\u8d8a\u591a\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u65f6\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u9700\u6c42\u6765\u5e73\u8861\u8fd9\u4e24\u4e2a\u53c2\u6570\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u4f20\u8f93\u6548\u679c\u3002<\/p>\n\n\n\n

\u3000\u3000\u603b\u4e4b\uff0c\u4fe1\u566a\u6bd4\u548c\u4fe1\u9053\u5e26\u5bbd\u662f\u6570\u5b57\u901a\u4fe1\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u5b83\u4eec\u76f4\u63a5\u5f71\u54cd\u5230\u6570\u636e\u7684\u4f20\u8f93\u8d28\u91cf\u548c\u901f\u7387\u3002\u5728\u8bbe\u8ba1\u6570\u5b57\u901a\u4fe1\u7cfb\u7edf\u65f6\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u9700\u6c42\u6765\u9009\u62e9\u5408\u9002\u7684\u53c2\u6570\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u4f20\u8f93\u6548\u679c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4fe1\u566a\u6bd4(Signal-to-Noise Ratio\uff0c\u7b80\u79f0SNR)\u662f\u6307\u4fe1\u53f7\u4e0e\u566a\u58f0\u7684\u6bd4\u503c\uff0c\u901a\u5e38\u7528\u6765\u8868\u793a\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u566a\u58f0\u7684\u5e72\u6270\u7a0b\u5ea6\u3002\u5728\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u4fe1\u566a\u6bd4\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u5230\u901a\u4fe1\u8d28\u91cf\u7684\u597d\u574f\u3002<\/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":[185,45],"class_list":["post-6610","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-xzb","tag-txxt"],"_links":{"self":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/6610"}],"collection":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/comments?post=6610"}],"version-history":[{"count":0,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/6610\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media\/3671"}],"wp:attachment":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media?parent=6610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/categories?post=6610"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/tags?post=6610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}