{"id":38257,"date":"2023-09-24T18:28:04","date_gmt":"2023-09-24T10:28:04","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=38257"},"modified":"2023-09-24T18:28:08","modified_gmt":"2023-09-24T10:28:08","slug":"hbshhfsxsdgx","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/38257.html","title":{"rendered":"\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5173\u7cfb"},"content":{"rendered":"\n<p>\u3000\u3000\u5728\u7535\u4fe1\u548c\u901a\u4fe1\u9886\u57df\uff0c\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u662f\u4e24\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\u3002\u5b83\u4eec\u4e0e\u4fe1\u53f7\u4f20\u8f93\u4e2d\u7684\u80fd\u91cf\u635f\u5931\u548c\u53cd\u5c04\u73b0\u8c61\u5bc6\u5207\u76f8\u5173\u3002\u4e86\u89e3<strong>\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5173\u7cfb<\/strong>\u5bf9\u4e8e\u786e\u4fdd\u4fe1\u53f7\u4f20\u8f93\u7684\u8d28\u91cf\u548c\u53ef\u9760\u6027\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5e76\u4ecb\u7ecd\u5982\u4f55\u901a\u8fc7\u4f18\u5316\u8bbe\u8ba1\u6765\u51cf\u5c11\u80fd\u91cf\u635f\u5931\u548c\u53cd\u5c04\u73b0\u8c61\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5b9a\u4e49<\/h2>\n\n\n\n<p>\u3000\u3000\u56de\u6ce2\u635f\u8017(Return Loss)\u662f\u6307\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7531\u4e8e\u963b\u6297\u4e0d\u5339\u914d\u5f15\u8d77\u7684\u80fd\u91cf\u53cd\u5c04\u548c\u635f\u8017\u3002\u5b83\u901a\u5e38\u7528\u6765\u8861\u91cf\u4fe1\u53f7\u4f20\u8f93\u7ebf\u4e0a\u7684\u53cd\u5c04\u73b0\u8c61\uff0c\u4ee5\u53ca\u4fe1\u53f7\u7684\u8d28\u91cf\u548c\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u53cd\u5c04\u7cfb\u6570(Reflection Coefficient)\u662f\u6307\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u7531\u4e8e\u4ecb\u8d28\u754c\u9762\u7684\u963b\u6297\u4e0d\u5339\u914d\u800c\u4ea7\u751f\u7684\u4fe1\u53f7\u53cd\u5c04\u7684\u6bd4\u4f8b\u3002\u5b83\u662f\u4e00\u4e2a\u6807\u91cf\u503c\uff0c\u7528\u4e8e\u63cf\u8ff0\u53cd\u5c04\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u76f8\u4f4d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5173\u7cfb<\/h2>\n\n\n\n<p>\u3000\u3000\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u4e4b\u95f4\u5b58\u5728\u7740\u7d27\u5bc6\u7684\u5173\u7cfb\u3002\u53cd\u5c04\u7cfb\u6570\u53ef\u4ee5\u901a\u8fc7\u56de\u6ce2\u635f\u8017\u6765\u8ba1\u7b97\u3002\u5177\u4f53\u800c\u8a00\uff0c\u53cd\u5c04\u7cfb\u6570\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u53cd\u5c04\u7cfb\u6570 = 10 \u00d7 log10 (1 \/ \u56de\u6ce2\u635f\u8017)<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u8fd9\u4e2a\u516c\u5f0f\u8868\u660e\uff0c\u56de\u6ce2\u635f\u8017\u8d8a\u5927\uff0c\u53cd\u5c04\u7cfb\u6570\u8d8a\u5c0f\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5f53\u56de\u6ce2\u635f\u8017\u589e\u52a0\u65f6\uff0c\u53cd\u5c04\u7cfb\u6570\u51cf\u5c0f\uff0c\u8868\u793a\u4fe1\u53f7\u7684\u53cd\u5c04\u73b0\u8c61\u51cf\u5c11\uff0c\u4fe1\u53f7\u4f20\u8f93\u8d28\u91cf\u63d0\u9ad8\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5f71\u54cd\u56e0\u7d20<\/h2>\n\n\n\n<p>\u3000\u3000\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5927\u5c0f\u53d7\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u56e0\u7d20\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>1. \u963b\u6297\u5339\u914d<\/strong>\uff1a\u5f53\u4fe1\u53f7\u6e90\u548c\u8d1f\u8f7d\u4e4b\u95f4\u7684\u963b\u6297\u5339\u914d\u826f\u597d\u65f6\uff0c\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u8f83\u5c0f\u3002\u963b\u6297\u4e0d\u5339\u914d\u4f1a\u5bfc\u81f4\u53cd\u5c04\u4fe1\u53f7\u7684\u589e\u52a0\uff0c\u4ece\u800c\u589e\u52a0\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>2. \u4fe1\u53f7\u9891\u7387<\/strong>\uff1a\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u901a\u5e38\u968f\u7740\u4fe1\u53f7\u9891\u7387\u7684\u589e\u52a0\u800c\u589e\u52a0\u3002\u9ad8\u9891\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u66f4\u5bb9\u6613\u53d1\u751f\u53cd\u5c04\u73b0\u8c61\uff0c\u56e0\u6b64\u4f1a\u5bfc\u81f4\u8f83\u5927\u7684\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>3. \u4f20\u8f93\u7ebf\u8d28\u91cf<\/strong>\uff1a\u4f20\u8f93\u7ebf\u7684\u8d28\u91cf\u5bf9\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u6709\u76f4\u63a5\u5f71\u54cd\u3002\u8d28\u91cf\u8f83\u5dee\u7684\u4f20\u8f93\u7ebf\u4f1a\u5bfc\u81f4\u8f83\u5927\u7684\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>4. \u8fde\u63a5\u5668\u548c\u63a5\u5934<\/strong>\uff1a\u8fde\u63a5\u5668\u548c\u63a5\u5934\u7684\u8d28\u91cf\u4e5f\u4f1a\u5bf9\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u4ea7\u751f\u5f71\u54cd\u3002\u8fde\u63a5\u5668\u548c\u63a5\u5934\u7684\u4e0d\u826f\u8d28\u91cf\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u53cd\u5c04\u7684\u589e\u52a0\uff0c\u4ece\u800c\u589e\u52a0\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001\u51cf\u5c11\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u3000\u3000\u4e3a\u4e86\u51cf\u5c11\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u30001. \u963b\u6297\u5339\u914d\uff1a\u786e\u4fdd\u4fe1\u53f7\u6e90\u548c\u8d1f\u8f7d\u4e4b\u95f4\u7684\u963b\u6297\u5339\u914d\u826f\u597d\uff0c\u53ef\u4ee5\u51cf\u5c11\u53cd\u5c04\u73b0\u8c61\u548c\u80fd\u91cf\u635f\u5931\u3002<\/li>\n\n\n\n<li>\u3000\u30002. \u4f7f\u7528\u5408\u9002\u7684\u4f20\u8f93\u7ebf\uff1a\u9009\u62e9\u8d28\u91cf\u8f83\u597d\u7684\u4f20\u8f93\u7ebf\uff0c\u53ef\u4ee5\u964d\u4f4e\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u3002<\/li>\n\n\n\n<li>\u3000\u30003. \u4f7f\u7528\u5408\u9002\u7684\u8fde\u63a5\u5668\u548c\u63a5\u5934\uff1a\u9009\u62e9\u8d28\u91cf\u8f83\u597d\u7684\u8fde\u63a5\u5668\u548c\u63a5\u5934\uff0c\u53ef\u4ee5\u51cf\u5c11\u4fe1\u53f7\u53cd\u5c04\uff0c\u4ece\u800c\u51cf\u5c0f\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u3002<\/li>\n\n\n\n<li>\u3000\u30004. \u4f7f\u7528\u8870\u51cf\u5668\uff1a\u5728\u4fe1\u53f7\u4f20\u8f93\u7ebf\u4e0a\u4f7f\u7528\u8870\u51cf\u5668\u53ef\u4ee5\u6709\u6548\u5730\u51cf\u5c0f\u53cd\u5c04\u4fe1\u53f7\u7684\u5f3a\u5ea6\uff0c\u51cf\u5c11\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u7ed3\u8bba\uff1a<\/h2>\n\n\n\n<p>\u3000\u3000<strong>\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u662f\u4fe1\u53f7\u4f20\u8f93\u4e2d\u4e24\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\u3002\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7740\u5bc6\u5207\u7684\u5173\u7cfb\uff0c\u53ef\u4ee5\u901a\u8fc7\u56de\u6ce2\u635f\u8017\u6765\u8ba1\u7b97\u53cd\u5c04\u7cfb\u6570\u3002\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5927\u5c0f\u53d7\u591a\u79cd\u56e0\u7d20\u7684\u5f71\u54cd\uff0c\u5305\u62ec\u963b\u6297\u5339\u914d\u3001\u4fe1\u53f7\u9891\u7387\u3001\u4f20\u8f93\u7ebf\u8d28\u91cf\u4ee5\u53ca\u8fde\u63a5\u5668\u548c\u63a5\u5934\u7684\u8d28\u91cf\u3002<\/strong>\u4e3a\u4e86\u51cf\u5c11\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\uff0c\u53ef\u4ee5\u91c7\u53d6\u963b\u6297\u5339\u914d\u3001\u9009\u62e9\u5408\u9002\u7684\u4f20\u8f93\u7ebf\u548c\u8fde\u63a5\u5668\u3001\u4ee5\u53ca\u4f7f\u7528\u8870\u51cf\u5668\u7b49\u65b9\u6cd5\u3002\u901a\u8fc7\u4f18\u5316\u8bbe\u8ba1\u548c\u9009\u62e9\u9002\u5f53\u7684\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u4f20\u8f93\u7684\u8d28\u91cf\u548c\u53ef\u9760\u6027\uff0c\u964d\u4f4e\u80fd\u91cf\u635f\u5931\u548c\u53cd\u5c04\u73b0\u8c61\u7684\u53d1\u751f\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u7535\u4fe1\u548c\u901a\u4fe1\u9886\u57df\uff0c\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u662f\u4e24\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\u3002\u5b83\u4eec\u4e0e\u4fe1\u53f7\u4f20\u8f93\u4e2d\u7684\u80fd\u91cf\u635f\u5931\u548c\u53cd\u5c04\u73b0\u8c61\u5bc6\u5207\u76f8\u5173\u3002\u4e86\u89e3\u56de\u6ce2\u635f\u8017\u548c\u53cd\u5c04\u7cfb\u6570\u7684\u5173\u7cfb\u5bf9\u4e8e\u786e\u4fdd\u4fe1\u53f7\u4f20\u8f93\u7684\u8d28\u91cf\u548c\u53ef\u9760\u6027\u81f3\u5173\u91cd\u8981<\/p>\n","protected":false},"author":1,"featured_media":1941,"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":[297],"class_list":["post-38257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-hbsh"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/38257","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=38257"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/38257\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/1941"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=38257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=38257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=38257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}