{"id":27478,"date":"2023-09-16T08:08:48","date_gmt":"2023-09-16T00:08:48","guid":{"rendered":"\/\/www.dealsbon.com\/?p=27478"},"modified":"2023-09-16T08:08:48","modified_gmt":"2023-09-16T00:08:48","slug":"scxddrlgs","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/27478.html","title":{"rendered":"\u5220\u9664\u4fe1\u9053\u7684\u5bb9\u91cf\u516c\u5f0f"},"content":{"rendered":"

  \u5220\u9664\u4fe1\u9053\u7684\u5bb9\u91cf\u516c\u5f0f\u662f\u7528\u6765\u8861\u91cf\u4e00\u4e2a\u4fe1\u9053\u7684\u6700\u5927\u4f20\u8f93\u901f\u7387\u7684\u6570\u5b66\u516c\u5f0f\uff0c\u5b83\u662f\u7531\u4fe1\u9053\u5bb9\u91cf\u7406\u8bba\u7684\u521b\u59cb\u4ebaClaude Shannon\u4e8e1948\u5e74\u63d0\u51fa\u7684\u3002<\/strong>\u5b83\u7684\u516c\u5f0f\u662f\uff1aC = B log2 (1 + S\/N)\uff0c\u5176\u4e2dC\u662f\u4fe1\u9053\u5bb9\u91cf\uff0cB\u662f\u4fe1\u9053\u5e26\u5bbd\uff0cS\/N\u662f\u4fe1\u566a\u6bd4\u3002<\/p>\n

\u4fe1\u9053\u5bb9\u91cf\u7406\u8bba<\/h2>\n

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\u4fe1\u9053\u5bb9\u91cf\u7684\u8ba1\u7b97<\/h3>\n

  \u4fe1\u9053\u5bb9\u91cf\u7684\u8ba1\u7b97\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5c06\u4fe1\u9053\u5e26\u5bbdB\u548c\u4fe1\u566a\u6bd4S\/N\u4ee3\u5165\u5220\u9664\u4fe1\u9053\u7684\u5bb9\u91cf\u516c\u5f0f\u5373\u53ef\u3002\u4f8b\u5982\uff0c\u5982\u679cB=2MHz\uff0cS\/N=10dB\uff0c\u5219\u4fe1\u9053\u5bb9\u91cfC=2Mlog2(1+10)=16Mb\/s\u3002<\/p>\n

\u4fe1\u9053\u5bb9\u91cf\u7684\u5e94\u7528<\/h3>\n

  \u4fe1\u9053\u5bb9\u91cf\u7684\u8ba1\u7b97\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f30\u8ba1\u4fe1\u9053\u7684\u6027\u80fd\uff0c\u4ee5\u4fbf\u6211\u4eec\u53ef\u4ee5\u6709\u6548\u5730\u4f7f\u7528\u4fe1\u9053\u6765\u4f20\u8f93\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u6839\u636e\u4fe1\u9053\u5bb9\u91cf\u6765\u51b3\u5b9a\u4fe1\u9053\u7684\u5e26\u5bbd\uff0c\u4ee5\u53ca\u9700\u8981\u91c7\u7528\u7684\u4fe1\u53f7\u7f16\u7801\u65b9\u6848\u3002\u6b64\u5916\uff0c\u4fe1\u9053\u5bb9\u91cf\u7684\u8ba1\u7b97\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f30\u8ba1\u4fe1\u9053\u7684\u6700\u5927\u4f20\u8f93\u901f\u7387\uff0c\u4ee5\u4fbf\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u8981\u6765\u8c03\u6574\u4fe1\u9053\u7684\u6027\u80fd\u3002<\/p>\n

\u4fe1\u9053\u5bb9\u91cf\u7684\u9650\u5236<\/h2>\n

  \u5c3d\u7ba1\u5220\u9664\u4fe1\u9053\u7684\u5bb9\u91cf\u516c\u5f0f\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f30\u8ba1\u4fe1\u9053\u7684\u6027\u80fd\uff0c\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u9650\u5236\u3002\u4f8b\u5982\uff0c\u5b83\u5047\u8bbe\u4fe1\u53f7\u6e90\u548c\u63a5\u6536\u673a\u4e4b\u95f4\u6ca1\u6709\u4efb\u4f55\u5176\u4ed6\u5e72\u6270\uff0c\u8fd9\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u662f\u4e0d\u53ef\u80fd\u7684\u3002\u6b64\u5916\uff0c\u5b83\u4e5f\u5047\u8bbe\u4fe1\u53f7\u6e90\u548c\u63a5\u6536\u673a\u4e4b\u95f4\u7684\u4fe1\u566a\u6bd4\u662f\u56fa\u5b9a\u7684\uff0c\u8fd9\u4e5f\u662f\u4e0d\u53ef\u80fd\u7684\u3002<\/p>\n

\u4fe1\u9053\u5bb9\u91cf\u7684\u6539\u8fdb<\/h3>\n

  \u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u4eba\u4eec\u63d0\u51fa\u4e86\u591a\u79cd\u6539\u8fdb\u65b9\u6848\uff0c\u5305\u62ec\u57fa\u4e8e\u591a\u8f93\u5165\u591a\u8f93\u51fa\uff08MIMO\uff09\u7684\u4fe1\u9053\u5bb9\u91cf\u516c\u5f0f\uff0c\u57fa\u4e8e\u6700\u5927\u4f3c\u7136\u4f30\u8ba1\u7684\u4fe1\u9053\u5bb9\u91cf\u516c\u5f0f\uff0c\u4ee5\u53ca\u57fa\u4e8e\u4fe1\u9053\u72b6\u6001\u4fe1\u606f\u7684\u4fe1\u9053\u5bb9\u91cf\u516c\u5f0f\u7b49\u3002\u8fd9\u4e9b\u6539\u8fdb\u65b9\u6848\u4f7f\u5f97\u4fe1\u9053\u5bb9\u91cf\u516c\u5f0f\u66f4\u52a0\u7cbe\u786e\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u53cd\u6620\u4fe1\u9053\u7684\u5b9e\u9645\u6027\u80fd\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u5220\u9664\u4fe1\u9053\u7684\u5bb9\u91cf\u516c\u5f0f\u662f\u7528\u6765\u8861\u91cf\u4e00\u4e2a\u4fe1\u9053\u7684\u6700\u5927\u4f20\u8f93\u901f\u7387\u7684\u6570\u5b66\u516c\u5f0f\uff0c\u5b83\u662f\u7531\u4fe1\u9053\u5bb9\u91cf\u7406\u8bba\u7684\u521b\u59cb\u4ebaClaude Shannon\u4e8e1948\u5e74\u63d0\u51fa\u7684\u3002<\/strong>\u5b83\u7684\u516c\u5f0f\u662f\uff1aC = B log2 (1 + S\/N)\uff0c\u5176\u4e2dC\u662f\u4fe1\u9053\u5bb9\u91cf\uff0cB\u662f\u4fe1\u9053\u5e26\u5bbd\uff0cS\/N\u662f\u4fe1\u566a\u6bd4\u3002\u4fe1\u9053\u5bb9\u91cf\u7406\u8bba\u63cf\u8ff0\u4e86\u4e00\u4e2a\u4fe1\u9053\u7684\u6700\u5927\u4f20\u8f93\u901f\u7387\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u4fe1\u9053\u7684\u6027\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u5730\u4f7f\u7528\u4fe1\u9053\u6765\u4f20\u8f93\u4fe1\u606f\u3002\u867d\u7136\u5220\u9664\u4fe1\u9053\u7684\u5bb9\u91cf\u516c\u5f0f\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f30\u8ba1\u4fe1\u9053\u7684\u6027\u80fd\uff0c\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u9650\u5236\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u4eba\u4eec\u63d0\u51fa\u4e86\u591a\u79cd\u6539\u8fdb\u65b9\u6848\uff0c\u4f7f\u5f97\u4fe1\u9053\u5bb9\u91cf\u516c\u5f0f\u66f4\u52a0\u7cbe\u786e\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u53cd\u6620\u4fe1\u9053\u7684\u5b9e\u9645\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5220\u9664\u4fe1\u9053\u7684\u5bb9\u91cf\u516c\u5f0f\u662f\u7528\u6765\u8861\u91cf\u4e00\u4e2a\u4fe1\u9053\u7684\u6700\u5927\u4f20\u8f93\u901f\u7387\u7684\u6570\u5b66\u516c\u5f0f\uff0c\u5b83\u662f\u7531\u4fe1\u9053\u5bb9\u91cf\u7406\u8bba\u7684\u521b\u59cb\u4ebaClaude Shannon\u4e8e1948\u5e74\u63d0\u51fa\u7684\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":[183],"class_list":["post-27478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-xd"],"_links":{"self":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/27478"}],"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=27478"}],"version-history":[{"count":0,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/27478\/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=27478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/categories?post=27478"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/tags?post=27478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}