{"id":114,"date":"2026-04-01T00:15:09","date_gmt":"2026-03-31T16:15:09","guid":{"rendered":"https:\/\/granddream.top\/?p=114"},"modified":"2026-04-01T00:21:39","modified_gmt":"2026-03-31T16:21:39","slug":"%e9%80%9a%e4%bf%a1%e6%a0%b8%e5%bf%83%e7%9f%a5%e8%af%86%e7%82%b9%e4%b8%80","status":"publish","type":"post","link":"https:\/\/granddream.top\/index.php\/2026\/04\/01\/%e9%80%9a%e4%bf%a1%e6%a0%b8%e5%bf%83%e7%9f%a5%e8%af%86%e7%82%b9%e4%b8%80\/","title":{"rendered":"\u901a\u4fe1\u6838\u5fc3\u77e5\u8bc6\u70b9\u4e00"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u4fe1\u53f7\u57fa\u7840\uff1a\u65f6\u57df\u4e0e\u9891\u57df<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4fe1\u53f7<\/strong>\uff1a\u901a\u4fe1\u4e2d\u6570\u636e\u7684\u8f7d\u4f53\uff0c\u4f20\u8f93\u672c\u8d28\u662f\u4fe1\u53f7\u7684\u53d8\u6362\u4e0e\u5904\u7406\u3002<\/li>\n\n\n\n<li><strong>\u65f6\u57df<\/strong>\uff1a\u770b\u4fe1\u53f7\u968f\u65f6\u95f4\u600e\u4e48\u53d8\uff08\u793a\u6ce2\u5668\uff09\u3002<\/li>\n\n\n\n<li><strong>\u9891\u57df<\/strong>\uff1a\u770b\u4fe1\u53f7\u7531\u54ea\u4e9b\u9891\u7387\u7ec4\u6210\uff08\u9891\u8c31\u4eea\uff09\u3002<\/li>\n\n\n\n<li><strong>\u4efb\u610f\u590d\u6742\u4fe1\u53f7<\/strong> = \u4e0d\u540c\u5e45\u5ea6\u3001\u9891\u7387\u3001\u76f8\u4f4d\u7684\u6b63\u5f26\u6ce2\u53e0\u52a0\u3002<\/li>\n\n\n\n<li><strong>\u6b63\u5f26\u4e09\u8981\u7d20<\/strong>\uff1a\u5e45\u5ea6 A\u3001\u9891\u7387 f\u3001\u76f8\u4f4d \u03b8\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u5085\u91cc\u53f6\u7ea7\u6570 vs \u5085\u91cc\u53f6\u53d8\u6362<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5085\u91cc\u53f6\u7ea7\u6570 FS<\/strong>\u9002\u7528\uff1a<strong>\u5468\u671f\u4fe1\u53f7<\/strong>\u7ed3\u679c\uff1a<strong>\u79bb\u6563\u9891\u8c31<\/strong>\uff08\u57fa\u9891\u6574\u6570\u500d\uff09<\/li>\n\n\n\n<li><strong>\u5085\u91cc\u53f6\u53d8\u6362 FT<\/strong>\u9002\u7528\uff1a<strong>\u975e\u5468\u671f\u4fe1\u53f7<\/strong>\u7ed3\u679c\uff1a<strong>\u8fde\u7eed\u9891\u8c31<\/strong>\uff08\u5168\u9891\u7387\uff09<\/li>\n\n\n\n<li><strong>\u5bf9\u5076\u89c4\u5f8b<\/strong>\u5468\u671f\u2192\u79bb\u6563\u9891\u8c31\uff1b\u975e\u5468\u671f\u2192\u8fde\u7eed\u9891\u8c31\u65f6\u57df\u79bb\u6563\u2192\u9891\u57df\u5468\u671f\uff1b\u65f6\u57df\u8fde\u7eed\u2192\u9891\u57df\u975e\u5468\u671f<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u7f16\u7801 vs \u8c03\u5236<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f16\u7801<\/strong>\uff1a\u4fe1\u606f \u2192 0\/1 \u6bd4\u7279\u6d41\uff08\u4fe1\u6e90\u7f16\u7801\u3001\u7ea0\u9519\u7f16\u7801\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8c03\u5236<\/strong>\uff1a0\/1 \u6bd4\u7279 \u2192 \u52a0\u8f7d\u5230\u8f7d\u6ce2\uff0c\u53d8\u6210\u53ef\u4f20\u8f93\u6ce2\u5f62\uff08QPSK\u3001QAM \u7b49\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u57fa\u5e26\u662f\u4ec0\u4e48<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u57fa\u5e26<\/strong>\uff1a\u672a\u8c03\u5236\u7684<strong>\u539f\u59cb\u4f4e\u9891\u4fe1\u53f7<\/strong>\uff0c\u9760\u8fd1 0Hz\u3002<\/li>\n\n\n\n<li>\u8d1f\u8d23\uff1a\u7f16\u7801\u3001\u89e3\u7801\u3001\u8c03\u5236\u89e3\u8c03\u7b97\u6cd5\u3001\u6570\u636e\u5904\u7406\u3002<\/li>\n\n\n\n<li>\u4e0d\u80fd\u76f4\u63a5\u5929\u7ebf\u53d1\u5c04\uff0c\u5fc5\u987b<strong>\u8c03\u5236\u5230\u5c04\u9891<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u5c04\u9891\u524d\u7aef\u3001\u5929\u7ebf\u3001\u53d1\u5c04<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u53d1\u5c04<\/strong>\uff1a\u6574\u4e2a\u4fe1\u53f7\u53d1\u9001\u7684<strong>\u8fc7\u7a0b \/ \u529f\u80fd<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u5c04\u9891\u524d\u7aef<\/strong>\uff1a\u7535\u8def\u6a21\u5757\uff0c\u5b8c\u6210<strong>\u4e0a\u53d8\u9891\u3001\u529f\u7387\u653e\u5927\u3001\u6ee4\u6ce2\u3001\u6536\u53d1\u5207\u6362<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u5929\u7ebf<\/strong>\uff1a\u65e0\u6e90\u5668\u4ef6\uff0c\u5b9e\u73b0<strong>\u7535\u4fe1\u53f7 \u2194 \u7535\u78c1\u6ce2<\/strong>\u8f6c\u6362\uff0c\u5177\u6709\u4e92\u6613\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u5929\u7ebf\u6838\u5fc3\u77e5\u8bc6\u70b9<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u539f\u7406<\/strong>\uff1a\u4ea4\u53d8\u7535\u6d41\u4ea7\u751f\u7535\u78c1\u6ce2\uff1b\u534a\u6ce2\u632f\u5b50\u6700\u5e38\u7528\u3002<\/li>\n\n\n\n<li><strong>\u65b9\u5411\u56fe<\/strong>\uff1aE \u9762\u3001H \u9762\uff1b\u4e3b\u74e3\u3001\u65c1\u74e3\u3001\u96f6\u70b9\u3001\u534a\u529f\u7387\u89d2 HPBW\u3002<\/li>\n\n\n\n<li><strong>\u5168\u5411 \/ \u5b9a\u5411<\/strong>\uff1a\u5168\u5411\u5747\u5300\u8f90\u5c04\uff1b\u5b9a\u5411\u80fd\u91cf\u96c6\u4e2d\u3001\u589e\u76ca\u9ad8\u3002<\/li>\n\n\n\n<li><strong>\u5173\u952e\u53c2\u6570<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u65b9\u5411\u7cfb\u6570 D\uff1a\u53ea\u770b\u65b9\u5411\u6027<\/li>\n\n\n\n<li>\u8f90\u5c04\u6548\u7387 \u03b7\uff1a\u529f\u7387\u8f6c\u5316\u80fd\u529b<\/li>\n\n\n\n<li><strong>\u589e\u76ca G = \u03b7 \u00d7 D<\/strong>\uff08\u6700\u5e38\u7528\u6307\u6807\uff09<\/li>\n\n\n\n<li>\u589e\u76ca\u4e0d\u662f\u653e\u5927\uff0c\u662f<strong>\u80fd\u91cf\u805a\u7126<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u56de\u6ce2\u635f\u8017 S11<\/strong>\uff1a\u8d8a\u5c0f\u8d8a\u597d\uff0c-10dB=10% \u53cd\u5c04\uff0c-20dB=1% \u53cd\u5c04\u3002<\/li>\n\n\n\n<li><strong>\u6781\u5316<\/strong>\uff1a\u7ebf\u6781\u5316\u3001\u5706\u6781\u5316\uff1b\u5fc5\u987b<strong>\u6536\u53d1\u6781\u5316\u5339\u914d<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u5e38\u89c1\u5929\u7ebf<\/strong>\uff1a\u5bf9\u79f0\u632f\u5b50\u3001\u5355\u6781\u5b50\u3001\u5fae\u5e26\u3001\u516b\u6728\u3001\u629b\u7269\u9762\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u4fe1\u9053\u8870\u843d\u6a21\u578b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u5927\u5c3a\u5ea6\u8870\u843d<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8def\u5f84\u635f\u8017<\/strong>\uff1a\u968f\u8ddd\u79bb\u589e\u5927\u800c\u8870\u51cf\uff08Friis \u516c\u5f0f\uff09\u3002<\/li>\n\n\n\n<li><strong>\u9634\u5f71\u8870\u843d<\/strong>\uff1a\u969c\u788d\u7269\u906e\u6321\u5bfc\u81f4\u6162\u8870\u843d\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5c0f\u5c3a\u5ea6\u8870\u843d<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u591a\u5f84\u8870\u843d<\/strong>\uff1a\u591a\u6761\u8def\u5f84\u53e0\u52a0\uff0c\u4fe1\u53f7\u5feb\u901f\u8d77\u4f0f\u3002<\/li>\n\n\n\n<li><strong>\u591a\u666e\u52d2\u9891\u504f<\/strong>\uff1a\u79fb\u52a8\u9020\u6210\u9891\u7387\u504f\u79fb\uff0c\u4fe1\u9053\u65f6\u53d8\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u591a\u5f84\u6548\u5e94\u540e\u679c<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65f6\u5ef6\u6269\u5c55 \u03c4max<\/strong> \u2192 <strong>\u76f8\u5e72\u5e26\u5bbd Bc=1\/\u03c4max<\/strong><\/li>\n\n\n\n<li>\u4fe1\u53f7\u5e26\u5bbd &gt; Bc \u2192 <strong>\u9891\u7387\u9009\u62e9\u6027\u8870\u843d<\/strong> \u2192 <strong>\u7801\u95f4\u5e72\u6270 ISI<\/strong><\/li>\n\n\n\n<li>\u4fe1\u53f7\u5e26\u5bbd &lt; Bc \u2192 <strong>\u5e73\u5766\u8870\u843d<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u591a\u666e\u52d2\u6548\u5e94<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u79fb\u52a8 \u2192 \u9891\u504f fd \u2192 <strong>\u76f8\u5e72\u65f6\u95f4 Tc=1\/fd<\/strong><\/li>\n\n\n\n<li>\u7801\u5143\u65f6\u95f4 &gt; Tc \u2192 <strong>\u5feb\u8870\u843d<\/strong><\/li>\n\n\n\n<li>\u7801\u5143\u65f6\u95f4 &lt; Tc \u2192 <strong>\u6162\u8870\u843d<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u4fe1\u9053\u5747\u8861<\/h3>\n\n\n\n<p>\u62b5\u6d88\u7801\u95f4\u5e72\u6270 ISI\uff0c\u5e38\u7528\uff1aZF\u3001MMSE\u3001\u5224\u51b3\u53cd\u9988\u5747\u8861\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516b\u3001\u901a\u4fe1\u7cfb\u7edf\u6027\u80fd\u6307\u6807<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9891\u8c31\u6548\u7387<\/strong>\uff1a\u03b7 = Rb \/ BW\uff08bps\/Hz\uff09<\/li>\n\n\n\n<li><strong>\u8bef\u6bd4\u7279\u7387<\/strong>\uff1aBER = \u9519\u8bef\u6bd4\u7279 \/ \u603b\u6bd4\u7279<\/li>\n\n\n\n<li><strong>\u6bd4\u7279\u4fe1\u566a\u6bd4<\/strong>\uff1aEb\/N0 = (S\/N) \u00d7 (BW\/Rb)<\/li>\n\n\n\n<li><strong>\u9999\u519c\u5bb9\u91cf<\/strong>\uff1aC = n\u00b7BW\u00b7log\u2082(1+SNR)<\/li>\n\n\n\n<li><strong>\u9999\u519c\u6781\u9650<\/strong>\uff1aEb\/N0 \u2265 <strong>-1.6 dB<\/strong>\uff08\u65e0\u5dee\u9519\u5e95\u7ebf\uff09<\/li>\n\n\n\n<li><strong>\u8c03\u5236\u9636\u6570<\/strong>\uff1a\u8d8a\u9ad8\u8d8a\u5feb\uff0cBER \u8d8a\u5927\uff1b\u4fe1\u9053\u597d\u9ad8\u9636\uff0c\u4fe1\u9053\u5dee\u4f4e\u9636\u3002<\/li>\n\n\n\n<li><strong>\u4fe1\u9053\u7f16\u7801<\/strong>\uff1a\u52a0\u5197\u4f59\u7ea0\u9519\uff0c\u63d0\u5347\u53ef\u9760\u6027\uff0c\u7565\u964d\u6548\u7387\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e5d\u3001\u5b8c\u6574\u53d1\u9001\u94fe\u8def<\/h2>\n\n\n\n<p>\u4fe1\u6e90 \u2192 <strong>\u7f16\u7801<\/strong> \u2192 <strong>\u57fa\u5e26\u4fe1\u53f7<\/strong> \u2192 <strong>\u8c03\u5236<\/strong> \u2192 <strong>\u5c04\u9891\u524d\u7aef<\/strong> \u2192 <strong>\u5929\u7ebf<\/strong> \u2192 <strong>\u53d1\u5c04<\/strong> \u2192 \u4fe1\u9053<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-pale-cyan-blue-color\">\u7530\u99a5\u7504-\u4f60\u5c31\u4e0d\u8981\u60f3\u8d77\u6211<\/mark><\/p>\n\n\n\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/granddream.top\/wp-content\/uploads\/2026\/04\/\u7530\u99a5\u7504-\u4f60\u5c31\u4e0d\u8981\u60f3\u8d77\u6211.mp3\"><\/audio><\/figure>\n<\/div><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u4fe1\u53f7\u57fa\u7840\uff1a\u65f6\u57df\u4e0e\u9891\u57df \u4e8c\u3001\u5085\u91cc\u53f6\u7ea7\u6570 vs \u5085\u91cc\u53f6\u53d8\u6362 \u4e09\u3001\u7f16\u7801 vs \u8c03\u5236 \u56db\u3001\u57fa\u5e26\u662f\u4ec0\u4e48 \u4e94\u3001\u5c04\u9891\u524d\u7aef [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":120,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[12],"class_list":["post-114","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article","tag-12"],"_links":{"self":[{"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/posts\/114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/comments?post=114"}],"version-history":[{"count":5,"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/posts\/114\/revisions"}],"predecessor-version":[{"id":123,"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/posts\/114\/revisions\/123"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/media\/120"}],"wp:attachment":[{"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/media?parent=114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/categories?post=114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/granddream.top\/index.php\/wp-json\/wp\/v2\/tags?post=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}