{"id":186,"date":"2021-03-28T22:16:44","date_gmt":"2021-03-28T14:16:44","guid":{"rendered":"https:\/\/www.kunlunlink.com\/?p=186"},"modified":"2021-03-29T14:57:40","modified_gmt":"2021-03-29T06:57:40","slug":"%e8%93%9d%e7%89%99%e7%bd%91%e5%85%b3%e8%a6%86%e7%9b%96%e8%b7%9d%e7%a6%bb%e6%98%af%e5%a4%9a%e5%b0%91","status":"publish","type":"post","link":"https:\/\/www.kunlunlink.com\/186.html","title":{"rendered":"\u84dd\u7259\u7f51\u5173\u8986\u76d6\u8ddd\u79bb\u6709\u591a\u8fdc\uff1f\u4e0e\u4ec0\u4e48\u6709\u5173\uff1f"},"content":{"rendered":"<p>\u5f88\u591a\u670b\u53cb\u95ee\u84dd\u7259\u7f51\u5173\u7684\u8986\u76d6\u8ddd\u79bb\uff0c\u4f46\u662f\u84dd\u7259\u7f51\u5173\u5728\u5de5\u4f5c\u8fc7\u7a0b\u4e2d\u5373\u53ef\u626b\u63cf\u4e5f\u53ef\u8fde\u63a5\uff0c\u5728\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f\u4e0b\u5f71\u54cd\u8986\u76d6\u8ddd\u79bb\u7684\u56e0\u7d20\u4e0d\u4e00\u6837\uff0c\u8ddf\u7740\u6df1\u5733\u6606\u4ed1\u667a\u8054\u84dd\u7259\u7f51\u5173\u5382\u5bb6\u4e86\u89e3\u4e00\u4e0b\uff1a<\/p>\n<p><strong>1<\/strong><strong>\u3011\u84dd\u7259\u7f51\u5173\u4e0d\u540c\u6a21\u5f0f\u4e0b\u7684\u8986\u76d6\u8ddd\u79bb\u5f71\u54cd\u56e0\u7d20<\/strong><\/p>\n<ol>\n<li>\u84dd\u7259\u7f51\u5173\u63a5\u6536\u84dd\u7259\u5e7f\u64ad\u4fe1\u53f7\uff0c\u8fd9\u4e2a\u65f6\u5019\u84dd\u7259\u7f51\u5173\u7684\u8986\u76d6\u8303\u56f4\u4e0e\u84dd\u7259\u8bbe\u5907\u7684\u53d1\u5c04\u529f\u7387\u548c\u84dd\u7259\u7f51\u5173\u7684\u63a5\u6536\u7075\u654f\u5ea6\u6709\u5173\u3002<\/li>\n<li>\u84dd\u7259\u7f51\u5173\u8fde\u63a5\u84dd\u7259\u7ec8\u7aef\u8fdb\u884c\u53cc\u5411\u901a\u8baf\uff0c\u8fd9\u4e2a\u65f6\u5019\u8986\u76d6\u8303\u56f4\u4e0e\u84dd\u7259\u8bbe\u5907\u7684\u53d1\u5c04\u529f\u7387\u548c\u84dd\u7259\u7f51\u5173\u7684\u63a5\u6536\u7075\u654f\u5ea6\u6709\u5173\u7cfb\uff0c\u4e5f\u4e0e\u84dd\u7259\u7f51\u5173\u7684\u53d1\u5c04\u529f\u7387\u548c\u84dd\u7259\u8bbe\u5907\u7684\u63a5\u6536\u7075\u654f\u5ea6\u6709\u5173\u7cfb\u3002<\/li>\n<\/ol>\n<p><strong>2<\/strong><strong>\u3011\u84dd\u7259\u4fe1\u53f7\u4f20\u8f93\u8ddd\u79bb\u8ba1\u7b97\u516c\u5f0f\uff1a<\/strong><\/p>\n<p>Pr(dBm) = Pt(dBm) &#8211; Ct(dB) + Gt(dB) &#8211; FL(dB) + Gr(dB) &#8211; Cr(dB)<\/p>\n<p>FL(dB)= Pt(dBm) &#8211; Ct(dB) + Gt(dB) &#8211; Pr(dBm) + Gr(dB) &#8211; Cr(dB)<\/p>\n<p>Pr\uff1a\u63a5\u53d7\u7aef\u7075\u654f\u5ea6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Pt: \u53d1\u9001\u7aef\u529f\u7387<\/p>\n<p>Cr: \u63a5\u6536\u7aef\u63a5\u5934\u548c\u7535\u7f06\u635f\u8017\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Ct: \u53d1\u9001\u7aef\u63a5\u5934\u548c\u7535\u7f06\u635f\u8017<\/p>\n<p>Gr: \u63a5\u53d7\u7aef\u5929\u7ebf\u589e\u76ca\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Gt: \u53d1\u9001\u7aef\u5929\u7ebf\u589e\u76ca<\/p>\n<p>FL: \u81ea\u7531\u7a7a\u95f4\u635f\u8017<\/p>\n<p>3\u3011<strong>\u81ea\u7531\u7a7a\u95f4\u901a\u4fe1\u8ddd\u79bb\u65b9\u7a0b\uff1a<\/strong><\/p>\n<p>FL(dB)=20 lg R (km) +20 lg f (GHz) + 92.44\u00a0 \u53ef\u4ee5\u6362\u7b97\u6210\uff1a FL(dB)=20 lg d(m) +20 lg f (GHz) + 32.44<\/p>\n<p>\u5c06\u84dd\u7259BLE\u7684\u5de5\u4f5c\u9891\u73872.4GHz\u4ee3\u5165\u516c\u5f0f\u4e2d\uff0c\u6211\u4eec\u5f97\u5230\uff1a<\/p>\n<p>FL(dB)=20 lg d(m) +20 lg 2.4 (GHz) + 32.44<\/p>\n<p>FL(dB)=20 lg d(m) +7.6+ 32.44<\/p>\n<p>FL(dB)=20 lg d(m) +40.04<\/p>\n<p>R\u662f\u4e24\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\uff0c\u5355\u4f4dkm\uff1bf\u662f\u9891\u7387=2.4\uff0c\u5355\u4f4dGHz\uff1bd\u662f\u4e24\u70b9\u4e4b\u95f4\u7684\u8ddd\u79bb\uff0c\u5355\u4f4dm<\/p>\n<p>\u901a\u8fc7\u4e0a\u9762\u7684\u516c\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\uff0c<strong>\u84dd\u7259\u4fe1\u53f7\u4f20\u8f93\u8ddd\u79bb\u589e\u52a01\u500d<\/strong>\uff0c<strong>\u529f\u7387\u5f97\u589e\u52a06dBm\uff0c\u56e0\u6b64\u8981\u60f3\u84dd\u7259\u7f51\u5173\u4f20\u8f93\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u90a3\u5728\u4e00\u5b9a\u6761\u4ef6\u4e0b\u84dd\u7259\u7f51\u5173\u7684\u529f\u7387\u5f97\u8d8a\u5927<\/strong>\u3002<\/p>\n<p><strong>4<\/strong><strong>\u3011\u6df1\u5733\u6606\u4ed1\u667a\u8054\u84dd\u7259\u7f51\u5173KTBG601\u548cKTBG602\u7684\u8986\u76d6\u8303\u56f4\uff1a<\/strong><\/p>\n<p>\u6df1\u5733\u6606\u4ed1\u667a\u8054\u84dd\u7259\u7f51\u5173KTBG601\u548cKTBG602\u5747\u5185\u7f6e\u84dd\u7259PA\u548cLNA\uff0c\u5c06\u53d1\u5c04\u529f\u7387\u589e\u52a0\u4e8622dBm\uff0c\u63a5\u6536\u7075\u654f\u5ea6\u589e\u52a0\u4e8612dBm\uff0c\u56e0\u6b64\u7406\u8bba\u4e0a\u5c06\u8986\u76d6\u8ddd\u79bb\u589e\u52a0\u4e864\u500d\uff0c\u53ef\u8fbe\u5230100\u591a\u7c73\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"\u5f88\u591a\u670b\u53cb\u95ee\u84dd\u7259\u7f51\u5173\u7684\u8986\u76d6\u8ddd\u79bb\uff0c\u4f46\u662f\u84dd\u7259\u7f51\u5173\u5728\u5de5\u4f5c\u8fc7\u7a0b\u4e2d\u5373\u53ef\u626b\u63cf\u4e5f\u53ef\u8fde\u63a5\uff0c\u5728\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f\u4e0b\u5f71\u54cd\u8986\u76d6\u8ddd\u79bb\u7684\u56e0\u7d20\u4e0d [&hellip;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-186","post","type-post","status-publish","format-standard","hentry","category-wenda"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/posts\/186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/comments?post=186"}],"version-history":[{"count":1,"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/posts\/186\/revisions"}],"predecessor-version":[{"id":197,"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/posts\/186\/revisions\/197"}],"wp:attachment":[{"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/media?parent=186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/categories?post=186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kunlunlink.com\/wp-json\/wp\/v2\/tags?post=186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}