{"id":27714,"date":"2023-09-16T13:50:38","date_gmt":"2023-09-16T05:50:38","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=27714"},"modified":"2023-09-16T13:50:38","modified_gmt":"2023-09-16T05:50:38","slug":"zykjsjgs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/27714.html","title":{"rendered":"\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f"},"content":{"rendered":"

  \u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u662f\u4e00\u79cd\u7528\u4e8e\u8ba1\u7b97\u65e0\u7ebf\u7535\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u8870\u51cf\u7684\u516c\u5f0f\u3002\u5b83\u662f\u7531\u7f8e\u56fd\u7269\u7406\u5b66\u5bb6\u7231\u56e0\u65af\u5766\u57281909\u5e74\u53d1\u660e\u7684\uff0c\u662f\u7535\u78c1\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u8870\u51cf\u7684\u4e00\u79cd\u91cd\u8981\u65b9\u6cd5\u3002<\/p>\n

\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u7684\u57fa\u672c\u539f\u7406<\/h2>\n

  \u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u7684\u57fa\u672c\u539f\u7406\u662f\uff0c\u5f53\u7535\u78c1\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u65f6\uff0c\u7531\u4e8e\u7a7a\u6c14\u7684\u5b58\u5728\uff0c\u5b83\u4f1a\u53d7\u5230\u7a7a\u6c14\u7684\u5438\u6536\u548c\u53cd\u5c04\uff0c\u4ece\u800c\u9020\u6210\u7535\u78c1\u6ce2\u7684\u8870\u51cf\u3002\u7535\u78c1\u6ce2\u8870\u51cf\u7684\u5927\u5c0f\u4e0e\u53d1\u5c04\u529f\u7387\u3001\u63a5\u6536\u529f\u7387\u3001\u53d1\u5c04\u9891\u7387\u3001\u63a5\u6536\u9891\u7387\u3001\u53d1\u5c04\u5929\u7ebf\u9ad8\u5ea6\u3001\u63a5\u6536\u5929\u7ebf\u9ad8\u5ea6\u3001\u53d1\u5c04\u5929\u7ebf\u548c\u63a5\u6536\u5929\u7ebf\u4e4b\u95f4\u7684\u8ddd\u79bb\u4ee5\u53ca\u7a7a\u6c14\u5bc6\u5ea6\u7b49\u56e0\u7d20\u6709\u5173\u3002<\/p>\n

\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u7684\u8868\u8fbe\u5f0f<\/h3>\n

  \u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u7684\u8868\u8fbe\u5f0f\u4e3a\uff1a<\/p>\n

  L = 20log10<\/sub>(4\u03c0d\/\u03bb) + Gt<\/sub> + Gr<\/sub><\/p>\n

  \u5176\u4e2d\uff1aL\u4e3a\u8870\u51cf\uff08dB\uff09\uff1bd\u4e3a\u53d1\u5c04\u5929\u7ebf\u548c\u63a5\u6536\u5929\u7ebf\u4e4b\u95f4\u7684\u8ddd\u79bb\uff1b\u03bb\u4e3a\u6ce2\u957f\uff1bGt<\/sub>\u4e3a\u53d1\u5c04\u5929\u7ebf\u589e\u76ca\uff1bGr<\/sub>\u4e3a\u63a5\u6536\u5929\u7ebf\u589e\u76ca\u3002<\/p>\n

\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u7684\u5e94\u7528<\/h3>\n

  \u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u53ef\u4ee5\u7528\u6765\u8ba1\u7b97\u7535\u78c1\u6ce2\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u7684\u8870\u51cf\uff0c\u4ece\u800c\u7ed9\u51fa\u7535\u78c1\u6ce2\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u7684\u8870\u51cf\u5927\u5c0f\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u5206\u6790\u7535\u78c1\u6ce2\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u7684\u8870\u51cf\uff0c\u4ece\u800c\u6709\u6548\u6539\u5584\u65e0\u7ebf\u7535\u7cfb\u7edf\u7684\u4f20\u8f93\u6548\u679c\u3002\u6b64\u5916\uff0c\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u8fd8\u53ef\u4ee5\u7528\u4e8e\u8ba1\u7b97\u65e0\u7ebf\u7535\u4fe1\u53f7\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u7684\u8870\u51cf\u5927\u5c0f\uff0c\u4ece\u800c\u6709\u6548\u6539\u5584\u65e0\u7ebf\u7535\u4fe1\u53f7\u7684\u4f20\u8f93\u6548\u679c\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u662f\u4e00\u79cd\u7528\u4e8e\u8ba1\u7b97\u65e0\u7ebf\u7535\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u8870\u51cf\u7684\u516c\u5f0f\uff0c\u5b83\u662f\u7531\u7f8e\u56fd\u7269\u7406\u5b66\u5bb6\u7231\u56e0\u65af\u5766\u57281909\u5e74\u53d1\u660e\u7684\uff0c\u662f\u7535\u78c1\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u8870\u51cf\u7684\u4e00\u79cd\u91cd\u8981\u65b9\u6cd5\u3002<\/strong>\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u7684\u57fa\u672c\u539f\u7406\u662f\uff0c\u5f53\u7535\u78c1\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u65f6\uff0c\u7531\u4e8e\u7a7a\u6c14\u7684\u5b58\u5728\uff0c\u5b83\u4f1a\u53d7\u5230\u7a7a\u6c14\u7684\u5438\u6536\u548c\u53cd\u5c04\uff0c\u4ece\u800c\u9020\u6210\u7535\u78c1\u6ce2\u7684\u8870\u51cf\u3002\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u53ef\u4ee5\u7528\u6765\u8ba1\u7b97\u7535\u78c1\u6ce2\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u7684\u8870\u51cf\uff0c\u4ece\u800c\u7ed9\u51fa\u7535\u78c1\u6ce2\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u7684\u8870\u51cf\u5927\u5c0f\uff0c\u53ef\u4ee5\u7528\u6765\u5206\u6790\u7535\u78c1\u6ce2\u5728\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u7684\u8870\u51cf\uff0c\u4ece\u800c\u6709\u6548\u6539\u5584\u65e0\u7ebf\u7535\u7cfb\u7edf\u7684\u4f20\u8f93\u6548\u679c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u81ea\u7531\u7a7a\u95f4\u8870\u51cf\u516c\u5f0f\u662f\u4e00\u79cd\u7528\u4e8e\u8ba1\u7b97\u65e0\u7ebf\u7535\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u8870\u51cf\u7684\u516c\u5f0f\u3002\u5b83\u662f\u7531\u7f8e\u56fd\u7269\u7406\u5b66\u5bb6\u7231\u56e0\u65af\u5766\u57281909\u5e74\u53d1\u660e\u7684\uff0c\u662f\u7535\u78c1\u6ce2\u5728\u7a7a\u95f4\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u8870\u51cf\u7684\u4e00\u79cd\u91cd\u8981\u65b9\u6cd5\u3002 \u81ea\u7531\u7a7a<\/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":[52],"class_list":["post-27714","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-wxtx"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/27714","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=27714"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/27714\/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=27714"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=27714"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=27714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}