{"id":1904,"date":"2026-04-13T20:23:30","date_gmt":"2026-04-13T12:23:30","guid":{"rendered":"http:\/\/www.preluna.xyz\/?p=1904"},"modified":"2026-04-13T20:57:15","modified_gmt":"2026-04-13T12:57:15","slug":"%e7%89%a9%e7%90%86%e5%b1%82%e9%ab%98%e9%a2%91%e8%80%83%e7%82%b9%ef%bc%9a%e9%a6%99%e5%86%9c%e5%ae%9a%e7%90%86%e3%80%81%e5%a5%88%e6%b0%8f%e5%87%86%e5%88%99%e3%80%81%e6%b3%a2%e7%89%b9%e7%8e%87%e3%80%81","status":"publish","type":"post","link":"http:\/\/www.preluna.xyz\/index.php\/2026\/04\/13\/%e7%89%a9%e7%90%86%e5%b1%82%e9%ab%98%e9%a2%91%e8%80%83%e7%82%b9%ef%bc%9a%e9%a6%99%e5%86%9c%e5%ae%9a%e7%90%86%e3%80%81%e5%a5%88%e6%b0%8f%e5%87%86%e5%88%99%e3%80%81%e6%b3%a2%e7%89%b9%e7%8e%87%e3%80%81\/preluna\/text\/","title":{"rendered":"\u7269\u7406\u5c42\u9ad8\u9891\u8003\u70b9\uff1a\u9999\u519c\u5b9a\u7406\u3001\u5948\u6c0f\u51c6\u5219\u3001\u6ce2\u7279\u7387\u3001\u6bd4\u7279\u7387\u4e0e QAM \u4e00\u6b21\u8bb2\u6e05"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u8fd9\u90e8\u5206\u5185\u5bb9\u5728 408 \u548c\u56fd\u5185\u8ba1\u7b97\u673a\u7f51\u7edc\u8003\u8bd5\u91cc\u975e\u5e38\u9ad8\u9891\uff0c\u800c\u4e14\u6700\u5bb9\u6613\u51fa\u73b0\u4e00\u79cd\u73b0\u8c61\uff1a\u5355\u4e2a\u516c\u5f0f\u90fd\u8ba4\u8bc6\uff0c\u4f46\u4e00\u5230\u9898\u76ee\u91cc\uff0c\u5e26\u5bbd\u3001\u6ce2\u7279\u7387\u3001\u6bd4\u7279\u7387\u3001\u7801\u5143\u72b6\u6001\u6570\u3001\u4fe1\u566a\u6bd4\u3001QAM \u4e00\u8d77\u51fa\u73b0\uff0c\u5c31\u5f00\u59cb\u6df7\u4e71\u3002<\/p>\n\n\n\n<p>\u5176\u5b9e\u8fd9\u90e8\u5206\u77e5\u8bc6\u5b8c\u5168\u53ef\u4ee5\u4e32\u6210\u4e00\u6761\u4e3b\u7ebf\u3002\u4f60\u53ef\u4ee5\u628a\u5b83\u7406\u89e3\u6210\u8fd9\u6837\uff1a<\/p>\n\n\n\n<p><strong>\u4fe1\u9053\u80fd\u4f20\u591a\u5feb<\/strong>\uff0c\u4e3b\u8981\u53d7\u4e24\u7c7b\u9650\u5236\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5e26\u5bbd\u9650\u5236<\/strong>\uff1a\u4fe1\u9053\u53d8\u5316\u592a\u5feb\u6765\u4e0d\u53ca\u8ddf\u968f\uff0c\u6240\u4ee5\u7801\u5143\u53d1\u9001\u901f\u7387\u4e0d\u80fd\u65e0\u9650\u5927\u3002<br>\u8fd9\u5c31\u662f<strong>\u5948\u6c0f\u51c6\u5219<\/strong>\u8981\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/li>\n\n\n\n<li><strong>\u566a\u58f0\u9650\u5236<\/strong>\uff1a\u5373\u4f7f\u4f60\u53d1\u5f97\u518d\u5feb\u3001\u72b6\u6001\u518d\u591a\uff0c\u566a\u58f0\u592a\u5927\u65f6\u63a5\u6536\u7aef\u4e5f\u5206\u4e0d\u6e05\u3002<br>\u8fd9\u5c31\u662f<strong>\u9999\u519c\u5b9a\u7406<\/strong>\u8981\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u6240\u4ee5\u5b83\u4eec\u5e76\u4e0d\u662f\u4e92\u76f8\u66ff\u4ee3\uff0c\u800c\u662f\u5206\u522b\u4ece\u4e24\u4e2a\u4e0d\u540c\u89d2\u5ea6\u7ed9\u51fa\u4e86\u201c\u4e0a\u9650\u201d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e00\u3001\u5148\u7ed9\u6838\u5fc3\u7ed3\u8bba<\/h1>\n\n\n\n<p>\u505a\u9898\u65f6\uff0c\u5148\u8bb0\u4f4f\u4e0b\u9762\u8fd9\u51e0\u53e5\uff0c\u5f88\u591a\u9898\u7acb\u523b\u5c31\u80fd\u5224\u65ad\u601d\u8def\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u4e09\u4e2a\u6700\u6838\u5fc3\u516c\u5f0f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\uff081\uff09\u6bd4\u7279\u7387\u3001\u6ce2\u7279\u7387\u3001\u7801\u5143\u72b6\u6001\u6570\u4e4b\u95f4\u7684\u5173\u7cfb<\/h3>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<p>\u5176\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>M<\/code> \u8868\u793a\u4e00\u4e2a\u7801\u5143\u53ef\u80fd\u53d6\u7684\u79bb\u6563\u72b6\u6001\u6570<\/li>\n\n\n\n<li><code>log&lt;sub>2&lt;\/sub>M`` \u8868\u793a\u6bcf\u4e2a\u7801\u5143\u80fd\u643a\u5e26\u591a\u5c11 bit<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e8c\u8fdb\u5236\uff1a<code>M = 2<\/code>\uff0c\u6bcf\u7801\u5143\u643a\u5e26 <code>1 bit<\/code><\/li>\n\n\n\n<li>4 \u4e2a\u72b6\u6001\uff1a<code>M = 4<\/code>\uff0c\u6bcf\u7801\u5143\u643a\u5e26 <code>2 bit<\/code><\/li>\n\n\n\n<li>8 \u4e2a\u72b6\u6001\uff1a<code>M = 8<\/code>\uff0c\u6bcf\u7801\u5143\u643a\u5e26 <code>3 bit<\/code><\/li>\n\n\n\n<li>16-QAM\uff1a<code>M = 16<\/code>\uff0c\u6bcf\u7801\u5143\u643a\u5e26 <code>4 bit<\/code><\/li>\n\n\n\n<li>64-QAM\uff1a<code>M = 64<\/code>\uff0c\u6bcf\u7801\u5143\u643a\u5e26 <code>6 bit<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\uff082\uff09\u5948\u6c0f\u51c6\u5219\uff08\u65e0\u566a\u58f0\uff09<\/h3>\n\n\n\n<p><code>\u7406\u60f3\u4f4e\u901a\u4fe1\u9053\u6700\u5927\u7801\u5143\u4f20\u8f93\u901f\u7387 = 2W<\/code><\/p>\n\n\n\n<p>\u8fdb\u4e00\u6b65\u5f97\u5230\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\uff1a<\/p>\n\n\n\n<p><code>C = 2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<p>\u5176\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>W<\/code> \u662f\u4fe1\u9053\u5e26\u5bbd\uff0c\u5355\u4f4d Hz<\/li>\n\n\n\n<li><code>M<\/code> \u662f\u7801\u5143\u72b6\u6001\u6570<\/li>\n\n\n\n<li><code>C<\/code> \u662f\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u5355\u4f4d bit\/s<\/li>\n<\/ul>\n\n\n\n<p>\u5948\u6c0f\u51c6\u5219\u8ba8\u8bba\u7684\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u5728\u65e0\u566a\u58f0\u3001\u4ec5\u53d7\u5e26\u5bbd\u9650\u5236\u65f6\uff0c\u6700\u591a\u80fd\u4f20\u591a\u5feb\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\uff083\uff09\u9999\u519c\u5b9a\u7406\uff08\u6709\u566a\u58f0\uff09<\/h3>\n\n\n\n<p><code>C = W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<p>\u5176\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>W<\/code> \u662f\u5e26\u5bbd<\/li>\n\n\n\n<li><code>S\/N<\/code> \u662f\u4fe1\u566a\u6bd4\u7684\u201c\u771f\u503c\u6bd4\u201d\uff0c\u4e0d\u662f dB<\/li>\n\n\n\n<li><code>C<\/code> \u662f\u4fe1\u9053\u6781\u9650\u5bb9\u91cf<\/li>\n<\/ul>\n\n\n\n<p>\u9999\u519c\u5b9a\u7406\u8ba8\u8bba\u7684\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u5728\u6709\u566a\u58f0\u6761\u4ef6\u4e0b\uff0c\u8fd9\u4e2a\u4fe1\u9053\u65e0\u8bba\u91c7\u7528\u4ec0\u4e48\u7f16\u7801\u548c\u8c03\u5236\uff0c\u53ef\u9760\u4f20\u8f93\u901f\u7387\u90fd\u4e0d\u53ef\u80fd\u8d85\u8fc7\u591a\u5c11\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u5948\u6c0f\u51c6\u5219\u548c\u9999\u519c\u5b9a\u7406\u7684\u5173\u7cfb<\/h2>\n\n\n\n<p>\u6700\u91cd\u8981\u7684\u4e00\u53e5\u8bdd\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u5948\u6c0f\u51c6\u5219\u7ed9\u51fa\u201c\u65e0\u566a\u58f0\u65f6\u201d\u7684\u4e0a\u9650\uff0c\u9999\u519c\u5b9a\u7406\u7ed9\u51fa\u201c\u6709\u566a\u58f0\u65f6\u201d\u7684\u7edd\u5bf9\u4e0a\u9650\u3002<\/strong><\/p>\n\n\n\n<p>\u5982\u679c\u4e00\u4e2a\u9898\u540c\u65f6\u7ed9\u4e86\u5e26\u5bbd\u3001\u72b6\u6001\u6570\u3001\u4fe1\u566a\u6bd4\uff0c\u90a3\u4e48\u4f60\u5e94\u8be5\u60f3\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5948\u6c0f\uff1a<code>2W \u00d7 log&lt;sub>2&lt;\/sub>M<\/code><\/li>\n\n\n\n<li>\u9999\u519c\uff1a<code>W \u00d7 log&lt;sub>2&lt;\/sub>(1 + S\/N)<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u771f\u6b63\u53ef\u8fbe\u5230\u7684\u53ef\u9760\u4f20\u8f93\u901f\u7387\uff0c\u4e0d\u80fd\u8d85\u8fc7\u8fd9\u4e24\u4e2a\u503c\u4e2d\u7684\u8f83\u5c0f\u8005\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n<p><code>\u5b9e\u9645\u53ef\u53ef\u9760\u4f20\u8f93\u901f\u7387 \u2264 min{ 2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M , W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N) }<\/code><\/p>\n\n\n\n<p>\u8fd9\u53e5\u8bdd\u662f\u628a\u6574\u7ae0\u5185\u5bb9\u4e32\u8d77\u6765\u7684\u5173\u952e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e8c\u3001\u5148\u628a\u51e0\u4e2a\u6982\u5ff5\u5f7b\u5e95\u533a\u5206\u6e05\u695a<\/h1>\n\n\n\n<p>\u8fd9\u51e0\u4e2a\u540d\u8bcd\u5728\u9898\u76ee\u91cc\u4f1a\u53cd\u590d\u6df7\u7740\u51fa\u73b0\uff0c\u5fc5\u987b\u5206\u6e05\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6982\u5ff5<\/th><th>\u672c\u8d28<\/th><th>\u5e38\u89c1\u5355\u4f4d<\/th><th>\u4f60\u53ef\u4ee5\u600e\u4e48\u7406\u89e3<\/th><\/tr><\/thead><tbody><tr><td>\u5e26\u5bbd <code>W<\/code><\/td><td>\u4fe1\u9053\u53ef\u901a\u8fc7\u7684\u9891\u7387\u8303\u56f4<\/td><td>Hz<\/td><td>\u8def\u6709\u591a\u5bbd<\/td><\/tr><tr><td>\u6ce2\u7279\u7387<\/td><td>\u6bcf\u79d2\u53d1\u9001\u591a\u5c11\u4e2a\u7801\u5143<\/td><td>Baud<\/td><td>\u6bcf\u79d2\u6253\u51fa\u591a\u5c11\u4e2a\u201c\u7b26\u53f7\u201d<\/td><\/tr><tr><td>\u6bd4\u7279\u7387<\/td><td>\u6bcf\u79d2\u53d1\u9001\u591a\u5c11\u4e2a\u6bd4\u7279<\/td><td>bit\/s<\/td><td>\u6bcf\u79d2\u771f\u6b63\u4f20\u591a\u5c11\u4fe1\u606f\u4f4d<\/td><\/tr><tr><td>\u7801\u5143\u72b6\u6001\u6570 <code>M<\/code><\/td><td>\u4e00\u4e2a\u7801\u5143\u6709\u591a\u5c11\u79cd\u53ef\u80fd\u53d6\u503c<\/td><td>\u65e0\u5355\u4f4d<\/td><td>\u6bcf\u4e2a\u7b26\u53f7\u6709\u591a\u5c11\u79cd\u53d8\u5316\u65b9\u5f0f<\/td><\/tr><tr><td>\u6bcf\u7801\u5143\u643a\u5e26\u6bd4\u7279\u6570<\/td><td>\u4e00\u4e2a\u7801\u5143\u80fd\u8868\u793a\u591a\u5c11 bit<\/td><td>bit\/\u7801\u5143<\/td><td><code>log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/td><\/tr><tr><td>\u4fe1\u9053\u5bb9\u91cf <code>C<\/code><\/td><td>\u5728\u7ed9\u5b9a\u6761\u4ef6\u4e0b\u7684\u6700\u5927\u53ef\u9760\u4f20\u8f93\u901f\u7387<\/td><td>bit\/s<\/td><td>\u8fd9\u6761\u4fe1\u9053\u7684\u7406\u8bba\u6781\u9650<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e09\u3001QAM\u3001\u76f8\u4f4d\u6570\u3001\u5e45\u5ea6\u6570\u548c\u72b6\u6001\u6570\u600e\u4e48\u8054\u7cfb\uff1f<\/h1>\n\n\n\n<p>\u8003\u8bd5\u91cc\u7ecf\u5e38\u51fa\u73b0 QAM\u3001\u76f8\u4f4d\u3001\u5e45\u5ea6\u8fd9\u4e9b\u5b57\u773c\uff0c\u672c\u8d28\u4e0a\u4ecd\u7136\u662f\u5728\u95ee\u4f60\uff1a<strong>\u4e00\u4e2a\u7801\u5143\u4e00\u5171\u6709\u591a\u5c11\u79cd\u72b6\u6001\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u4e00\u822c\u539f\u5219<\/h2>\n\n\n\n<p>\u5982\u679c\u9898\u76ee\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6709 <code>a<\/code> \u79cd\u76f8\u4f4d<\/li>\n\n\n\n<li>\u6bcf\u79cd\u76f8\u4f4d\u6709 <code>b<\/code> \u79cd\u5e45\u5ea6<\/li>\n<\/ul>\n\n\n\n<p>\u90a3\u4e48\u603b\u72b6\u6001\u6570\u5c31\u662f\uff1a<\/p>\n\n\n\n<p><code>M = a \u00d7 b<\/code><\/p>\n\n\n\n<p>\u4e8e\u662f\u6bcf\u7801\u5143\u53ef\u643a\u5e26\u7684\u6bd4\u7279\u6570\u5c31\u662f\uff1a<\/p>\n\n\n\n<p><code>log&lt;sub&gt;2&lt;\/sub&gt;(a \u00d7 b)<\/code><\/p>\n\n\n\n<p>\u518d\u4e58\u4ee5\u6ce2\u7279\u7387\uff0c\u5c31\u5f97\u5230\u6bd4\u7279\u7387\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u5e38\u89c1\u4f8b\u5b50<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8c03\u5236\u65b9\u5f0f<\/th><th>\u72b6\u6001\u6570 <code>M<\/code><\/th><th>\u6bcf\u7801\u5143 bit \u6570<\/th><\/tr><\/thead><tbody><tr><td>BPSK<\/td><td>2<\/td><td>1<\/td><\/tr><tr><td>QPSK<\/td><td>4<\/td><td>2<\/td><\/tr><tr><td>8PSK<\/td><td>8<\/td><td>3<\/td><\/tr><tr><td>16-QAM<\/td><td>16<\/td><td>4<\/td><\/tr><tr><td>64-QAM<\/td><td>64<\/td><td>6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>16-QAM<\/code>\uff1a\u6bcf\u7801\u5143\u643a\u5e26 <code>4 bit<\/code><\/li>\n\n\n\n<li><code>64-QAM<\/code>\uff1a\u6bcf\u7801\u5143\u643a\u5e26 <code>6 bit<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u82e5\u6ce2\u7279\u7387\u4e3a <code>1200 Baud<\/code><\/li>\n\n\n\n<li>\u7528 <code>16-QAM<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u5219\u6bd4\u7279\u7387\u4e3a\uff1a<\/p>\n\n\n\n<p><code>1200 \u00d7 4 = 4800 bit\/s<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u56db\u3001\u4ec0\u4e48\u65f6\u5019\u7528\u5948\u6c0f\u51c6\u5219\uff0c\u4ec0\u4e48\u65f6\u5019\u7528\u9999\u519c\u5b9a\u7406\uff1f<\/h1>\n\n\n\n<p>\u8fd9\u662f\u8003\u8bd5\u91cc\u6700\u5173\u952e\u7684\u5224\u65ad\u70b9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u7528\u5948\u6c0f\u51c6\u5219\u7684\u5178\u578b\u5173\u952e\u8bcd<\/h2>\n\n\n\n<p>\u9898\u5e72\u51fa\u73b0\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u5948\u6c0f\u51c6\u5219\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u65e0\u566a\u58f0<\/li>\n\n\n\n<li>\u7406\u60f3\u4fe1\u9053<\/li>\n\n\n\n<li>\u5e26\u5bbd\u4e3a\u591a\u5c11 Hz<\/li>\n\n\n\n<li>\u7801\u5143\u6709\u591a\u5c11\u79cd\u72b6\u6001<\/li>\n\n\n\n<li>\u6700\u5927\u7801\u5143\u901f\u7387<\/li>\n\n\n\n<li>\u6700\u5927\u6570\u636e\u901f\u7387\uff08\u4e14\u7ed9\u4e86\u72b6\u6001\u6570\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u65f6\u4e00\u822c\u7528\uff1a<\/p>\n\n\n\n<p><code>C = 2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<p>\u5982\u679c\u53ea\u95ee\u6700\u5927\u6ce2\u7279\u7387\uff0c\u5219\u7528\uff1a<\/p>\n\n\n\n<p><code>\u6700\u5927\u6ce2\u7279\u7387 = 2W<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u7528\u9999\u519c\u5b9a\u7406\u7684\u5178\u578b\u5173\u952e\u8bcd<\/h2>\n\n\n\n<p>\u9898\u5e72\u51fa\u73b0\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u9999\u519c\u5b9a\u7406\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fe1\u566a\u6bd4<\/li>\n\n\n\n<li>S\/N<\/li>\n\n\n\n<li>dB<\/li>\n\n\n\n<li>\u6709\u566a\u58f0\u4fe1\u9053<\/li>\n\n\n\n<li>\u4fe1\u9053\u5bb9\u91cf<\/li>\n\n\n\n<li>\u6781\u9650\u4f20\u8f93\u901f\u7387<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u65f6\u4e00\u822c\u7528\uff1a<\/p>\n\n\n\n<p><code>C = W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<p>\u82e5\u7ed9\u7684\u662f dB\uff0c\u8981\u5148\u6362\u7b97\uff1a<\/p>\n\n\n\n<p><code>\u4fe1\u566a\u6bd4(dB) = 10 \u00d7 log&lt;sub&gt;10&lt;\/sub&gt;(S\/N)<\/code><\/p>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<p><code>S\/N = 10&lt;sup&gt;\u4fe1\u566a\u6bd4(dB) \/ 10&lt;\/sup&gt;<\/code><\/p>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>30 dB<\/code><\/li>\n\n\n\n<li>\u5219 <code>S\/N = 10&lt;sup>3&lt;\/sup> = 1000<\/code><\/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\">3. \u540c\u65f6\u7ed9\u4e86\u72b6\u6001\u6570\u548c\u4fe1\u566a\u6bd4\u600e\u4e48\u529e\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u662f\u7efc\u5408\u9898\u6700\u5bb9\u6613\u5361\u4f4f\u7684\u5730\u65b9\u3002<\/p>\n\n\n\n<p>\u6b64\u65f6\u4e0d\u8981\u53ea\u5957\u4e00\u4e2a\u516c\u5f0f\uff0c\u800c\u8981\u60f3\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5948\u6c0f\u4e0a\u9650\uff1a\u7531\u5e26\u5bbd\u548c\u72b6\u6001\u6570\u51b3\u5b9a<\/li>\n\n\n\n<li>\u9999\u519c\u4e0a\u9650\uff1a\u7531\u5e26\u5bbd\u548c\u4fe1\u566a\u6bd4\u51b3\u5b9a<\/li>\n<\/ul>\n\n\n\n<p><strong>\u771f\u6b63\u80fd\u7a33\u5b9a\u8fbe\u5230\u7684\u901f\u7387\uff0c\u53d6\u4e24\u8005\u8f83\u5c0f\u503c\u3002<\/strong><\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u5948\u6c0f\u548c\u9999\u519c\u4e0d\u662f\u201c\u8c01\u66f4\u9ad8\u7ea7\u5c31\u7528\u8c01\u201d\uff0c\u800c\u662f\u5206\u522b\u6784\u6210\u4e0d\u540c\u9650\u5236\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e94\u3001\u628a\u6574\u6761\u903b\u8f91\u94fe\u4e32\u8d77\u6765<\/h1>\n\n\n\n<p>\u8fd9\u4e00\u7ae0\u6700\u91cd\u8981\u7684\u903b\u8f91\u94fe\u53ef\u4ee5\u5199\u6210\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u4ece\u7801\u5143\u72b6\u6001\u6570\u5230\u6bcf\u7801\u5143\u6bd4\u7279\u6570<\/h2>\n\n\n\n<p><code>\u6bcf\u7801\u5143\u643a\u5e26 bit \u6570 = log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u4ece\u6ce2\u7279\u7387\u5230\u6bd4\u7279\u7387<\/h2>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u4ece\u5e26\u5bbd\u5230\u6700\u5927\u6ce2\u7279\u7387\uff08\u5948\u6c0f\uff09<\/h2>\n\n\n\n<p><code>\u6700\u5927\u6ce2\u7279\u7387 = 2W<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u4ece\u5e26\u5bbd\u548c\u72b6\u6001\u6570\u5230\u65e0\u566a\u58f0\u6700\u5927\u6bd4\u7279\u7387<\/h2>\n\n\n\n<p><code>C = 2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u4ece\u5e26\u5bbd\u548c\u4fe1\u566a\u6bd4\u5230\u6709\u566a\u58f0\u6781\u9650\u5bb9\u91cf\uff08\u9999\u519c\uff09<\/h2>\n\n\n\n<p><code>C = W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u771f\u6b63\u53ef\u9760\u4f20\u8f93\u4e0a\u9650<\/h2>\n\n\n\n<p><code>\u5b9e\u9645\u53ef\u9760\u4f20\u8f93\u901f\u7387 \u2264 min{ 2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M , W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N) }<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u516d\u3001\u4f60\u63d0\u5230\u7684\u51e0\u9053\u9898\uff0c\u9010\u9898\u8bb2\u6e05\u695a<\/h1>\n\n\n\n<p>\u4e0b\u9762\u6309\u8003\u7814\u9898\u89e3\u6790\u6a21\u5f0f\u6765\u505a\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b\u9898 1\uff1a\u4fe1\u606f\u901f\u7387\u4e3a 64 KB\/s\uff0c\u4e00\u4e2a\u8f7d\u6ce2\u4fe1\u53f7\u6709 4 \u4e2a\u6709\u6548\u79bb\u6563\u503c\uff0c\u6c42\u6ce2\u7279\u7387<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed3\u8bba<\/h3>\n\n\n\n<p>\u5982\u679c\u9898\u76ee\u4e2d\u7684 <code>64 KB\/s<\/code> \u662f<strong>\u5b57\u8282\u6bcf\u79d2<\/strong>\uff0c\u5219\uff1a<\/p>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = 64 \u00d7 8 = 512 Kb\/s<\/code><\/p>\n\n\n\n<p>\u56e0\u4e3a <code>M = 4<\/code>\uff0c\u6240\u4ee5\uff1a<\/p>\n\n\n\n<p><code>\u6bcf\u7801\u5143\u643a\u5e26 bit \u6570 = log&lt;sub&gt;2&lt;\/sub&gt;4 = 2<\/code><\/p>\n\n\n\n<p>\u6545\u6ce2\u7279\u7387\u4e3a\uff1a<\/p>\n\n\n\n<p><code>\u6ce2\u7279\u7387 = \u6bd4\u7279\u7387 \/ 2 = 256 KBaud<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f46\u8003\u8bd5\u91cc\u6709\u4e00\u4e2a\u5927\u5751<\/h3>\n\n\n\n<p>\u5f88\u591a\u6559\u6750\u6216\u9898\u76ee\u539f\u672c\u60f3\u5199\u7684\u662f <code>64 Kb\/s<\/code>\uff0c\u53ea\u662f\u5927\u5c0f\u5199\u5199\u4e71\u4e86\u3002<br>\u6240\u4ee5\u8fd9\u9898\u5fc5\u987b\u5148\u770b\u6e05\u5355\u4f4d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>Kb\/s<\/code>\uff1a\u5343\u6bd4\u7279\u6bcf\u79d2<\/li>\n\n\n\n<li><code>KB\/s<\/code>\uff1a\u5343\u5b57\u8282\u6bcf\u79d2<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u662f <code>64 Kb\/s<\/code>\uff0c\u5219\uff1a<\/p>\n\n\n\n<p><code>\u6ce2\u7279\u7387 = 64 \/ 2 = 32 KBaud<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd9\u7c7b\u9898\u7684\u8bc6\u522b\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u9898\u76ee\u7ed9\u4e86\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fe1\u606f\u901f\u7387<\/li>\n\n\n\n<li>\u72b6\u6001\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u6c42\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6ce2\u7279\u7387<\/li>\n<\/ul>\n\n\n\n<p>\u5c31\u76f4\u63a5\u7528\uff1a<\/p>\n\n\n\n<p><code>\u6ce2\u7279\u7387 = \u6bd4\u7279\u7387 \/ log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b\u9898 2\uff1a\u65e0\u566a\u58f0\u7684 8000 Hz \u4fe1\u9053\uff0c\u6bcf\u4e2a\u4fe1\u53f7\u5305\u542b 8 \u7ea7\uff0c\u6bcf\u79d2\u91c7\u6837 4000 \u6b21\uff0c\u53ef\u83b7\u5f97\u7684\u6700\u5927\u4f20\u8f93\u901f\u7387\u4e3a\u591a\u5c11\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u9898\u6587\u5b57\u6709\u70b9\u6df7\u6742\uff0c\u4f46\u6309\u4f60\u7ed9\u51fa\u7684\u6761\u4ef6\uff0c\u6700\u76f4\u63a5\u7684\u5904\u7406\u65b9\u5f0f\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u79d2\u91c7\u6837 4000 \u6b21\uff0c\u53ef\u89c6\u4e3a\u6bcf\u79d2\u53d1\u9001 <code>4000<\/code> \u4e2a\u7801\u5143<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u4fe1\u53f7 8 \u7ea7\uff0c\u6240\u4ee5 <code>M = 8<\/code><\/li>\n\n\n\n<li>\u6bcf\u7801\u5143\u643a\u5e26 <code>log&lt;sub>2&lt;\/sub>8 = 3 bit<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u4e8e\u662f\uff1a<\/p>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = 4000 \u00d7 3 = 12000 bit\/s<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed3\u8bba<\/h3>\n\n\n\n<p><code>12000 bit\/s<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u4e0d\u662f 2W \u00d7 log2M = 2 \u00d7 8000 \u00d7 3 = 48000 bit\/s\uff1f<\/h3>\n\n\n\n<p>\u56e0\u4e3a\u9898\u76ee\u53c8\u989d\u5916\u7ed9\u4e86\u201c\u6bcf\u79d2\u91c7\u6837 4000 \u6b21\u201d\uff0c\u8fd9\u76f8\u5f53\u4e8e\u5b9e\u9645\u7801\u5143\u901f\u7387\u5df2\u7ecf\u88ab\u9650\u5b9a\u6210 <code>4000 Baud<\/code>\u3002<br>\u5948\u6c0f\u51c6\u5219\u7ed9\u7684\u662f<strong>\u4e0a\u9650<\/strong>\uff0c\u5e76\u4e0d\u4ee3\u8868\u5b9e\u9645\u4e00\u5b9a\u8dd1\u5230\u4e0a\u9650\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7406\u8bba\u6700\u5927\u7801\u5143\u901f\u7387\u53ef\u5230 <code>2W = 16000 Baud<\/code><\/li>\n\n\n\n<li>\u4f46\u9898\u76ee\u5b9e\u9645\u53ea\u8ba9\u4f60\u6bcf\u79d2\u91c7\u6837 <code>4000<\/code> \u6b21<\/li>\n\n\n\n<li>\u6240\u4ee5\u5b9e\u9645\u4f20\u8f93\u901f\u7387\u6309 <code>4000 Baud<\/code> \u7b97<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u6b63\u662f\u8003\u8bd5\u5e38\u89c1\u9677\u9631\uff1a<strong>\u7406\u8bba\u4e0a\u9650<\/strong>\u548c<strong>\u5b9e\u9645\u7ed9\u5b9a\u53d1\u9001\u901f\u7387<\/strong>\u4e0d\u8981\u6df7\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b\u9898 3\uff1a\u4fe1\u566a\u6bd4\u4e3a 127:1 \u7684 4000 Hz \u4fe1\u9053\uff0c\u6700\u5927\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e3a\u591a\u5c11\uff1f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9898\u578b\u5224\u65ad<\/h3>\n\n\n\n<p>\u5178\u578b\u9999\u519c\u5b9a\u7406\u9898\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5df2\u77e5<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>W = 4000 Hz<\/code><\/li>\n\n\n\n<li><code>S\/N = 127<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u5165\uff1a<\/p>\n\n\n\n<p><code>C = W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<p>\u5f97\u5230\uff1a<\/p>\n\n\n\n<p><code>C = 4000 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(128)<\/code><\/p>\n\n\n\n<p>\u56e0\u4e3a\uff1a<\/p>\n\n\n\n<p><code>log&lt;sub&gt;2&lt;\/sub&gt;128 = 7<\/code><\/p>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<p><code>C = 4000 \u00d7 7 = 28000 bit\/s<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed3\u8bba<\/h3>\n\n\n\n<p><code>28000 bit\/s<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b\u9898 4\uff1a\u4e00\u4e2a\u4fe1\u9053\u6bcf 1\/8 \u79d2\u91c7\u6837\u4e00\u6b21\uff0c\u5171\u6709 16 \u79cd\u53d8\u5316\u72b6\u6001\uff0c\u6c42\u6700\u5927\u4f20\u8f93\u901f\u7387<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5173\u952e\u4fe1\u606f\u63d0\u53d6<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf <code>1\/8<\/code> \u79d2\u91c7\u6837\u4e00\u6b21\uff0c\u8bf4\u660e\u6bcf\u79d2\u91c7\u6837 <code>8<\/code> \u6b21<\/li>\n\n\n\n<li>\u53ef\u89c6\u4e3a\u6ce2\u7279\u7387 <code>8 Baud<\/code><\/li>\n\n\n\n<li>\u72b6\u6001\u6570 <code>M = 16<\/code><\/li>\n\n\n\n<li>\u6bcf\u7801\u5143\u643a\u5e26 <code>log&lt;sub>2&lt;\/sub>16 = 4 bit<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u56e0\u6b64\uff1a<\/p>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = 8 \u00d7 4 = 32 bit\/s<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed3\u8bba<\/h3>\n\n\n\n<p><code>32 bit\/s<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd9\u7c7b\u9898\u4e3a\u4ec0\u4e48\u5bb9\u6613\u9519\uff1f<\/h3>\n\n\n\n<p>\u56e0\u4e3a\u5f88\u591a\u4eba\u4e00\u770b\u5230\u201c\u91c7\u6837\u201d\u5c31\u6761\u4ef6\u53cd\u5c04\u53bb\u60f3\u5e26\u5bbd\u548c\u5948\u6c0f\u516c\u5f0f\u3002<br>\u4f46\u8fd9\u9898\u672c\u8d28\u4e0a\u5df2\u7ecf\u76f4\u63a5\u7ed9\u4e86<strong>\u7801\u5143\u53d1\u9001\u9891\u7387<\/strong>\uff0c\u6240\u4ee5\u76f4\u63a5\uff1a<\/p>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<p>\u5c31\u884c\u4e86\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b\u9898 5\uff1a\u91c7\u7528 8 \u79cd\u76f8\u4f4d\uff0c\u6bcf\u79cd\u76f8\u4f4d\u5404\u6709 2 \u79cd\u5e45\u5ea6\u7684 QAM \u8c03\u5236\uff0c\u5728 1200 Baud \u4e0b\u80fd\u8fbe\u5230\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e3a\u591a\u5c11\uff1f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9898\u578b\u5224\u65ad<\/h3>\n\n\n\n<p>QAM \u72b6\u6001\u6570\u8ba1\u7b97\u9898\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5148\u6c42\u603b\u72b6\u6001\u6570<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u76f8\u4f4d\u6570\uff1a8<\/li>\n\n\n\n<li>\u5e45\u5ea6\u6570\uff1a2<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<p><code>M = 8 \u00d7 2 = 16<\/code><\/p>\n\n\n\n<p>\u6bcf\u7801\u5143\u643a\u5e26\uff1a<\/p>\n\n\n\n<p><code>log&lt;sub&gt;2&lt;\/sub&gt;16 = 4 bit<\/code><\/p>\n\n\n\n<p>\u6ce2\u7279\u7387\u4e3a\uff1a<\/p>\n\n\n\n<p><code>1200 Baud<\/code><\/p>\n\n\n\n<p>\u56e0\u6b64\u6bd4\u7279\u7387\u4e3a\uff1a<\/p>\n\n\n\n<p><code>1200 \u00d7 4 = 4800 bit\/s<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed3\u8bba<\/h3>\n\n\n\n<p><code>4800 bit\/s<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u6613\u9519\u70b9<\/h3>\n\n\n\n<p>\u6700\u5e38\u89c1\u9519\u8bef\u6709\u4e24\u4e2a\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u628a\u72b6\u6001\u6570\u9519\u7b97\u6210 <code>8 + 2 = 10<\/code><\/li>\n\n\n\n<li>\u77e5\u9053\u662f 16 \u72b6\u6001\uff0c\u4f46\u5fd8\u4e86 <code>log&lt;sub>2&lt;\/sub>16 = 4<\/code><\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u7c7b\u9898\u7684\u56fa\u5b9a\u6a21\u677f\u5c31\u662f\uff1a<\/p>\n\n\n\n<p><code>\u603b\u72b6\u6001\u6570 = \u76f8\u4f4d\u79cd\u6570 \u00d7 \u5e45\u5ea6\u79cd\u6570 \u00d7 \u5176\u4ed6\u53ef\u533a\u5206\u7ef4\u5ea6\u79cd\u6570<\/code><\/p>\n\n\n\n<p>\u7136\u540e\u4ee3\u5165\uff1a<\/p>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b\u9898 6\uff1a\u82e5\u67d0\u4fe1\u9053\u5728\u65e0\u566a\u58f0\u60c5\u51b5\u4e0b\u7684\u6781\u9650\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e0d\u5c0f\u4e8e\u4fe1\u566a\u6bd4\u4e3a 30 dB \u6761\u4ef6\u4e0b\u7684\u6781\u9650\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u5219\u4fe1\u53f7\u72b6\u6001\u6570\u81f3\u5c11\u4e3a\u591a\u5c11\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u9898\u975e\u5e38\u5178\u578b\uff0c\u6b63\u597d\u4f53\u73b0\u5948\u6c0f\u548c\u9999\u519c\u7684\u5173\u7cfb\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8bbe\u5e26\u5bbd\u540c\u4e3a <code>W<\/code><\/h3>\n\n\n\n<p>\u65e0\u566a\u58f0\u65f6\uff0c\u7531\u5948\u6c0f\u51c6\u5219\uff1a<\/p>\n\n\n\n<p><code>C&lt;sub&gt;\u5948&lt;\/sub&gt; = 2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<p>\u6709\u566a\u58f0\u65f6\uff0c\u7531\u9999\u519c\u5b9a\u7406\uff1a<\/p>\n\n\n\n<p><code>C&lt;sub&gt;\u9999&lt;\/sub&gt; = W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<p>\u9898\u610f\u8bf4\uff1a<\/p>\n\n\n\n<p><code>C&lt;sub&gt;\u5948&lt;\/sub&gt; \u2265 C&lt;sub&gt;\u9999&lt;\/sub&gt;<\/code><\/p>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<p><code>2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M \u2265 W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<p>\u7ea6\u53bb <code>W<\/code>\uff1a<\/p>\n\n\n\n<p><code>2 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M \u2265 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5148\u628a 30 dB \u8f6c\u6210\u771f\u503c\u6bd4<\/h3>\n\n\n\n<p><code>30 dB = 10 \u00d7 log&lt;sub&gt;10&lt;\/sub&gt;(S\/N)<\/code><\/p>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<p><code>S\/N = 10&lt;sup&gt;30\/10&lt;\/sup&gt; = 10&lt;sup&gt;3&lt;\/sup&gt; = 1000<\/code><\/p>\n\n\n\n<p>\u6545\uff1a<\/p>\n\n\n\n<p><code>1 + S\/N = 1001<\/code><\/p>\n\n\n\n<p>\u4e8e\u662f\uff1a<\/p>\n\n\n\n<p><code>2 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M \u2265 log&lt;sub&gt;2&lt;\/sub&gt;1001<\/code><\/p>\n\n\n\n<p>\u7b49\u4ef7\u4e8e\uff1a<\/p>\n\n\n\n<p><code>log&lt;sub&gt;2&lt;\/sub&gt;M \u2265 (1\/2)log&lt;sub&gt;2&lt;\/sub&gt;1001<\/code><\/p>\n\n\n\n<p>\u53c8\u56e0\u4e3a\uff1a<\/p>\n\n\n\n<p><code>sqrt(1001) \u2248 31.6<\/code><\/p>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<p><code>M \u2265 31.6<\/code><\/p>\n\n\n\n<p>\u72b6\u6001\u6570\u81f3\u5c11\u5e94\u53d6\u6574\u6570\uff0c\u4e14\u901a\u5e38\u53d6 2 \u7684\u5e42\u6b21\u72b6\u6001\u6570\uff0c\u56e0\u6b64\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ed3\u8bba<\/h3>\n\n\n\n<p><code>M \u81f3\u5c11\u4e3a 32<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd9\u9898\u7684\u4ef7\u503c<\/h3>\n\n\n\n<p>\u8fd9\u7c7b\u9898\u4e0d\u662f\u5355\u7eaf\u5957\u516c\u5f0f\uff0c\u800c\u662f\u5728\u8003\uff1a<\/p>\n\n\n\n<p><strong>\u80fd\u5426\u628a\u5948\u6c0f\u4e0a\u9650\u548c\u9999\u519c\u4e0a\u9650\u653e\u5230\u540c\u4e00\u4e2a\u4e0d\u7b49\u5f0f\u91cc\u6bd4\u8f83\u3002<\/strong><\/p>\n\n\n\n<p>\u8fd9\u662f\u7efc\u5408\u9898\u91cc\u6700\u91cd\u8981\u7684\u80fd\u529b\u4e4b\u4e00\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e03\u3001\u4fe1\u566a\u6bd4\u4e3a\u4ec0\u4e48\u548c\u4fe1\u53f7\u529f\u7387\u3001\u566a\u58f0\u529f\u7387\u6709\u5173\uff1f<\/h1>\n\n\n\n<p>\u4f60\u6700\u540e\u63d0\u5230\u8fd9\u4e00\u70b9\uff0c\u975e\u5e38\u5173\u952e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u4fe1\u566a\u6bd4\u7684\u5b9a\u4e49<\/h2>\n\n\n\n<p><code>S\/N = \u4fe1\u53f7\u5e73\u5747\u529f\u7387 \/ \u566a\u58f0\u5e73\u5747\u529f\u7387<\/code><\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fe1\u53f7\u529f\u7387\u8d8a\u5927\uff0c\u8d8a\u5bb9\u6613\u4ece\u566a\u58f0\u4e2d\u5206\u8fa8\u51fa\u6765<\/li>\n\n\n\n<li>\u566a\u58f0\u529f\u7387\u8d8a\u5927\uff0c\u8d8a\u4e0d\u5bb9\u6613\u5206\u8fa8<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5 <code>S\/N<\/code> \u8d8a\u5927\uff0c\u4fe1\u9053\u6297\u566a\u80fd\u529b\u8d8a\u5f3a\uff0c\u9999\u519c\u5bb9\u91cf\u4e5f\u5c31\u8d8a\u9ad8\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u4e3a\u4ec0\u4e48\u9999\u519c\u5bb9\u91cf\u968f\u4fe1\u566a\u6bd4\u589e\u52a0\u800c\u589e\u52a0\uff1f<\/h2>\n\n\n\n<p>\u56e0\u4e3a\uff1a<\/p>\n\n\n\n<p><code>C = W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<p>\u5f53 <code>S\/N<\/code> \u589e\u5927\u65f6\uff0c<code>log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code> \u53d8\u5927\uff0c\u5bb9\u91cf\u4e0a\u5347\u3002<\/p>\n\n\n\n<p>\u4f46\u6ce8\u610f\u5b83\u662f\u5bf9\u6570\u589e\u957f\uff0c\u4e0d\u662f\u7ebf\u6027\u589e\u957f\u3002<br>\u8fd9\u610f\u5473\u7740\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u9ad8\u4fe1\u566a\u6bd4\u786e\u5b9e\u80fd\u63d0\u9ad8\u5bb9\u91cf<\/li>\n\n\n\n<li>\u4f46\u63d0\u5347\u4f1a\u8d8a\u6765\u8d8a\u201c\u6ca1\u90a3\u4e48\u5212\u7b97\u201d<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u662f\u9999\u519c\u516c\u5f0f\u53cd\u6620\u51fa\u7684\u5f88\u91cd\u8981\u7684\u5de5\u7a0b\u542b\u4e49\uff0c\u4f46\u5728\u8003\u7814\u91cc\u4e3b\u8981\u662f\u7528\u6765\u8ba1\u7b97\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u516b\u3001\u8fd9\u90e8\u5206\u5185\u5bb9\u6700\u5bb9\u6613\u9519\u7684\u5730\u65b9<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u628a\u6ce2\u7279\u7387\u548c\u6bd4\u7279\u7387\u6df7\u4e86<\/h2>\n\n\n\n<p>\u5fc5\u987b\u8bb0\u4f4f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6ce2\u7279\u7387\uff1a\u6bcf\u79d2\u591a\u5c11\u7801\u5143<\/li>\n\n\n\n<li>\u6bd4\u7279\u7387\uff1a\u6bcf\u79d2\u591a\u5c11 bit<\/li>\n<\/ul>\n\n\n\n<p>\u4e24\u8005\u5173\u7cfb\uff1a<\/p>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<p>\u53ea\u6709\u4e8c\u8fdb\u5236\u60c5\u51b5\u4e0b\uff0c\u4e8c\u8005\u624d\u6570\u503c\u76f8\u7b49\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u628a\u5948\u6c0f\u548c\u9999\u519c\u6df7\u4e86<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5948\u6c0f\uff1a\u65e0\u566a\u58f0\uff0c\u8ddf\u72b6\u6001\u6570 <code>M<\/code> \u6709\u5173<\/li>\n\n\n\n<li>\u9999\u519c\uff1a\u6709\u566a\u58f0\uff0c\u8ddf\u4fe1\u566a\u6bd4 <code>S\/N<\/code> \u6709\u5173<\/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\">3. \u7ed9\u7684\u662f dB \u5374\u76f4\u63a5\u4ee3\u5165\u9999\u519c\u516c\u5f0f<\/h2>\n\n\n\n<p>\u9999\u519c\u516c\u5f0f\u91cc\u5fc5\u987b\u662f\u666e\u901a\u6bd4\u503c <code>S\/N<\/code>\uff0c\u4e0d\u662f dB\u3002<br>\u82e5\u7ed9 <code>30 dB<\/code>\uff0c\u8981\u5148\u53d8\u6210 <code>1000<\/code>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. QAM \u72b6\u6001\u6570\u7b97\u9519<\/h2>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>8 \u79cd\u76f8\u4f4d<\/li>\n\n\n\n<li>2 \u79cd\u5e45\u5ea6<\/li>\n<\/ul>\n\n\n\n<p>\u4e0d\u662f 10 \u79cd\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<p><code>8 \u00d7 2 = 16<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u7406\u8bba\u4e0a\u9650\u548c\u5b9e\u9645\u901f\u7387\u6df7\u6dc6<\/h2>\n\n\n\n<p>\u9898\u76ee\u5982\u679c\u5df2\u7ecf\u7ed9\u4e86\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u79d2\u91c7\u6837\u591a\u5c11\u6b21<\/li>\n\n\n\n<li>\u6bcf\u79d2\u53d1\u9001\u591a\u5c11\u4e2a\u7801\u5143<\/li>\n<\/ul>\n\n\n\n<p>\u90a3\u5c31\u5148\u6309\u5b9e\u9645\u901f\u7387\u7b97\u3002<br>\u5948\u6c0f\u548c\u9999\u519c\u901a\u5e38\u7ed9\u7684\u662f<strong>\u4e0a\u9650<\/strong>\uff0c\u4e0d\u662f\u9898\u76ee\u5b9e\u9645\u5df2\u7ecf\u8fbe\u5230\u7684\u901f\u7387\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e5d\u3001\u8003\u8bd5\u4e2d\u5982\u4f55\u5feb\u901f\u5224\u65ad\u8be5\u7528\u4ec0\u4e48\u516c\u5f0f\uff1f<\/h1>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u7528\u4e0b\u9762\u8fd9\u4e2a\u201c\u79d2\u5224\u6a21\u677f\u201d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u770b\u5230\u201c\u65e0\u566a\u58f0\u3001\u5e26\u5bbd\u3001\u72b6\u6001\u6570\u201d<\/h2>\n\n\n\n<p>\u60f3\u5230\uff1a<\/p>\n\n\n\n<p><code>C = 2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u770b\u5230\u201c\u4fe1\u566a\u6bd4\u3001dB\u3001\u4fe1\u9053\u5bb9\u91cf\u201d<\/h2>\n\n\n\n<p>\u60f3\u5230\uff1a<\/p>\n\n\n\n<p><code>C = W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u770b\u5230\u201c\u6ce2\u7279\u7387\u3001\u72b6\u6001\u6570\u3001QAM\u3001\u76f8\u4f4d\u3001\u5e45\u5ea6\u201d<\/h2>\n\n\n\n<p>\u60f3\u5230\uff1a<\/p>\n\n\n\n<p><code>\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u770b\u5230\u201c\u6bd4\u8f83\u65e0\u566a\u58f0\u6781\u9650\u4e0e\u6709\u566a\u58f0\u6781\u9650\u201d<\/h2>\n\n\n\n<p>\u60f3\u5230\uff1a<\/p>\n\n\n\n<p><code>2W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;M<\/code> \u548c <code>W \u00d7 log&lt;sub&gt;2&lt;\/sub&gt;(1 + S\/N)<\/code> \u5efa\u7acb\u4e0d\u7b49\u5f0f<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u770b\u5230\u201cdB\u201d<\/h2>\n\n\n\n<p>\u5148\u505a\u4e00\u6b65\uff1a<\/p>\n\n\n\n<p><code>S\/N = 10&lt;sup&gt;dB\/10&lt;\/sup&gt;<\/code><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u5341\u3001\u628a\u8fd9\u7ae0\u538b\u7f29\u6210\u8003\u8bd5\u901f\u8bb0\u7248<\/h1>\n\n\n\n<p>\u8fd9\u90e8\u5206\u5982\u679c\u8003\u524d\u53ea\u770b\u4e00\u5206\u949f\uff0c\u5efa\u8bae\u8bb0\u4e0b\u9762\u8fd9\u4e9b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u4e09\u6761\u4e3b\u516c\u5f0f<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log2M\n\u5948\u6c0f\uff1aC = 2W \u00d7 log2M\n\u9999\u519c\uff1aC = W \u00d7 log2(1 + S\/N)\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u4e09\u4e2a\u6838\u5fc3\u533a\u5206<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6ce2\u7279\u7387\uff1a\u6bcf\u79d2\u591a\u5c11\u7801\u5143\n\u6bd4\u7279\u7387\uff1a\u6bcf\u79d2\u591a\u5c11\u6bd4\u7279\n\u6bcf\u7801\u5143\u643a\u5e26\u6bd4\u7279\u6570\uff1alog2M\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u4e24\u4e2a\u5b9a\u7406\u7684\u9002\u7528\u8303\u56f4<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5948\u6c0f\uff1a\u65e0\u566a\u58f0\uff0c\u53ea\u53d7\u5e26\u5bbd\u9650\u5236\n\u9999\u519c\uff1a\u6709\u566a\u58f0\uff0c\u7ed9\u51fa\u7edd\u5bf9\u6781\u9650\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. QAM \u5904\u7406\u539f\u5219<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u603b\u72b6\u6001\u6570 M = \u76f8\u4f4d\u6570 \u00d7 \u5e45\u5ea6\u6570\n\u6bcf\u7801\u5143\u6bd4\u7279\u6570 = log2M\n\u6bd4\u7279\u7387 = \u6ce2\u7279\u7387 \u00d7 log2M\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u771f\u6b63\u53ef\u9760\u901f\u7387\u7684\u672c\u8d28<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5b9e\u9645\u53ef\u9760\u4f20\u8f93\u901f\u7387\u4e0d\u80fd\u8d85\u8fc7\uff1a\nmin{ 2W \u00d7 log2M, W \u00d7 log2(1 + S\/N) }\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u6700\u540e\u5c0f\u7ed3<\/h1>\n\n\n\n<p>\u4f60\u8fd9\u6b21\u63d0\u5230\u7684\u8fd9\u4e9b\u6982\u5ff5\uff0c\u5176\u5b9e\u4e0d\u662f\u96f6\u6563\u7684\uff0c\u800c\u662f\u4e00\u6574\u5957\u903b\u8f91\u94fe\uff1a<\/p>\n\n\n\n<p><strong>\u5e26\u5bbd\u51b3\u5b9a\u6700\u5927\u7801\u5143\u901f\u7387\uff0c\u72b6\u6001\u6570\u51b3\u5b9a\u6bcf\u4e2a\u7801\u5143\u80fd\u88c5\u591a\u5c11 bit\uff0c\u4e8c\u8005\u7ed3\u5408\u5f97\u5230\u65e0\u566a\u58f0\u4e0b\u7684\u6700\u5927\u6bd4\u7279\u7387\uff1b\u566a\u58f0\u518d\u8fdb\u4e00\u6b65\u901a\u8fc7\u4fe1\u566a\u6bd4\u9650\u5236\u4e86\u53ef\u9760\u4f20\u8f93\u4e0a\u9650\uff0c\u8fd9\u5c31\u662f\u9999\u519c\u5b9a\u7406\u3002<\/strong><\/p>\n\n\n\n<p>\u6240\u4ee5\u6574\u7ae0\u771f\u6b63\u7684\u4e3b\u7ebf\u53ef\u4ee5\u6982\u62ec\u6210\u4e00\u53e5\u8bdd\uff1a<\/p>\n\n\n\n<p><strong>\u4fe1\u9053\u4f20\u591a\u5feb\uff0c\u4e00\u65b9\u9762\u770b\u5e26\u5bbd\uff0c\u53e6\u4e00\u65b9\u9762\u770b\u566a\u58f0\uff1b\u800c\u5177\u4f53\u4e00\u4e2a\u7801\u5143\u80fd\u88c5\u591a\u5c11\u4fe1\u606f\uff0c\u8fd8\u8981\u770b\u5b83\u6709\u591a\u5c11\u79cd\u53ef\u533a\u5206\u72b6\u6001\u3002<\/strong><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u90e8\u5206\u5185\u5bb9\u5728 408 \u548c\u56fd\u5185\u8ba1\u7b97\u673a\u7f51\u7edc\u8003\u8bd5\u91cc\u975e\u5e38\u9ad8\u9891\uff0c\u800c\u4e14\u6700\u5bb9\u6613\u51fa\u73b0\u4e00\u79cd\u73b0\u8c61\uff1a\u5355\u4e2a\u516c\u5f0f\u90fd\u8ba4\u8bc6\uff0c\u4f46\u4e00\u5230\u9898\u76ee\u91cc\uff0c\u5e26 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-1904","post","type-post","status-publish","format-standard","hentry","category-text"],"_links":{"self":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/1904","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=1904"}],"version-history":[{"count":4,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/1904\/revisions"}],"predecessor-version":[{"id":1910,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/1904\/revisions\/1910"}],"wp:attachment":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=1904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=1904"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=1904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}