{"id":7,"date":"2025-05-13T14:03:38","date_gmt":"2025-05-13T06:03:38","guid":{"rendered":"https:\/\/vps.houyy.dynv6.net\/?p=7"},"modified":"2025-05-28T09:47:50","modified_gmt":"2025-05-28T01:47:50","slug":"802-11-non-ht-phy","status":"publish","type":"post","link":"https:\/\/www.houyy.com\/index.php\/2025\/05\/13\/802-11-non-ht-phy\/","title":{"rendered":"802.11 non-HT Phy"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\u6982\u8ff0<\/h1>\n\n\n\n<p>non-HT\u4f5c\u4e3aWIFI\u7684\u7b2c\u4e00\u4e2aOFDM\u7269\u7406\u5c42\uff0c\u7b2c\u4e00\u6b21\u5f15\u5165\u662f\u5728802.11a\u534f\u8bae\u4e2d\uff0c802.11a\u5de5\u4f5c\u57285G\uff0c\u968f\u540e\u5728802.11g\u4e2d\u52a0\u51652.4g\u9891\u6bb5\u652f\u6301\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u5e27\u7ed3\u6784<\/h1>\n\n\n\n<p>non-HT\u7684\u7269\u7406\u5c42\u5e27\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.houyy.com\/wp-content\/uploads\/2025\/05\/image.gif\" alt=\"\" style=\"aspect-ratio:1;width:28px;height:auto\"\/><\/figure>\n\n\n\n<p>\u4e3b\u8981\u5305\u542bPreable\uff0cSIGNAL\u4ee5\u53caDATA\u4e09\u90e8\u5206\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PREAMBLE<\/h2>\n\n\n\n<p>Preamble\u8be6\u7ec6\u683c\u5f0f\u5982\u4e0b\u56fe<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.houyy.com\/wp-content\/uploads\/2025\/05\/image-1.gif\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u524d8us\u4e3aSTF\uff0c\u7531\u9891\u57df\u4e3a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.houyy.com\/wp-content\/uploads\/2025\/05\/image-2.gif\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u4ee5\u4e0a\u7684\u5e8f\u5217OFDM\u8c03\u5236\u5f97\u5230\uff0c\u7531\u4e8e\u9891\u57df\u63d2\u503c\u6548\u679c\u4e3a\u65f6\u57df\u5468\u671f\u6269\u5c55\uff0c\u6240\u4ee5\u65f6\u5e8f\u4fe1\u53f7\u4e3a4\u4e2a\u91cd\u590d\u7684\u5e8f\u5217\uff0c\u52a0\u4e0a16\u4e2aCP\uff0c\u6240\u4ee5\u53ef\u4ee5\u5f97\u52305\u4e2a\u91cd\u590d\u7684\u7684\u5e8f\u5217\uff0c2\u4e2a\u7ec4\u5408\u5f97\u523010\u4e2a\u91cd\u590d\u5e8f\u5217\u3002\u7528\u4e8e\u7c97\u540c\u6b65\u4ee5\u53ca\u7c97\u9891\u504f\u4f30\u8ba1\u3002<\/p>\n\n\n\n<p>\u540e8us\u4e3aLTF\u3002\u5305\u542b\u4e24\u4e2a\u91cd\u590d\u7684OFDM\u7b26\u53f7\u3002\u7528\u4e8e\u7cbe\u540c\u6b65\uff0c\u4ee5\u53ca\u5c0f\u6570\u9891\u504f\u7ea0\u6b63\u4ee5\u53ca\u4fe1\u9053\u4f30\u8ba1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SIGNAL<\/h2>\n\n\n\n<p>SIGANL\u90e8\u5206\u7d27\u968fPREAMBLE\u90e8\u5206\u4e4b\u540e\uff0c\u8868\u793aDATA\u90e8\u5206\u7684\u8c03\u5236\u5df2\u7ecf\u957f\u5ea6\u76f8\u5173\u4fe1\u606f\uff0c\u63a5\u6536\u7aef\u89e3\u51fa\u8fd9\u4e9b\u4fe1\u606f\u4e4b\u540e\u624d\u80fd\u6b63\u786e\u5bf9DATA\u90e8\u5206\u8fdb\u884c\u89e3\u8c03\u3002SIGNAL\u90e8\u5206\u7531\u4ee5\u4e0b\u4fe1\u606f\u8c03\u5236\u800c\u6765\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>RATE:\u5b9a\u4e49\u8c03\u5236\u65b9\u5f0f\u4ee5\u53ca\u7f16\u7801\u6548\u7387\u3002<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>LENGTH:\u6307\u793a\u5f53\u524d\u5e27\u643a\u5e26\u7684PSDU\u5b9e\u9645\u6570\u636e\u957f\u5ea6\uff0c\u5355\u4f4d\u4e3a\u5b57\u8282\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PARTY\uff1a\u524d\u9762\u6240\u6709\u4fe1\u606f\u7684\u5947\u5076\u6821\u9a8c\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TAIL\uff1a\u5377\u79ef\u7f16\u7801\u5668\u5c3ebit\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0a\u6240\u6709bit\u6570\u636e\u7ecf1\/2\u7684BCC\u7f16\u7801\u4e4b\u540e\uff0c\u7ecfOFDM\u8c03\u5236\u4e4b\u540e\uff0c\u5f97\u52301\u4e2aOFDM\u7b26\u53f7\u3002\u5904\u7406\u8fc7\u7a0b\u540cDATA\u90e8\u5206\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DATA<\/h2>\n\n\n\n<p>DATA\u90e8\u5206\u7531SERVICE\u5b57\u6bb5\uff0c\u5b9e\u9645\u7684PSDU\u5b57\u6bb5\uff0cTAIL\uff0c\u4ee5\u53ca\u586b\u5145bit PAD\u7ecfBCC\u7f16\u7801\uff0cOFDM\u8c03\u5236\u4e4b\u540e\u5f97\u5230\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>SERVICE\uff1a16bit\uff0c\u7528\u4e8e\u89e3\u6270\u6a21\u5757\u7684\u521d\u59cb\u5316\u3002<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PSDU\uff1aMAC\u5c42\u6765\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TAIL\uff1a\u5377\u636e\u7f16\u7801\u5668\u7684\u5c3ebit\uff0c\u7528\u4e8e\u5f52\u96f6\u8bd1\u7801\u5668\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PAD\uff1a\u7531\u4e8e\u9700\u8981\u53d1\u9001\u7684bit\u6570\u91cf\u4e0d\u4e00\u5b9a\u80fd\u521a\u597d\u586b\u5145\u5b8c\u6240\u6709\u7684OFDM\u7b26\u53f7\uff0c\u56e0\u6b64\u9700\u8981\u5728\u6570\u636e\u5c3e\u90e8\u586b0\u3002\u586b0\u7684\u6570\u91cf\u5411\u4e0a\u53d6\u6574\u8ba1\u7b97\u80fd\u591f\u9700\u8981\u7684OFDM\u7b26\u53f7\u3002\u7136\u540e\u51cf\u53bb\u5b9e\u9645\u53d1\u9001\u7684BIT\u6570\u91cf\u3002\u6700\u7ec8\u5f97\u5230\u9700\u8981PAD\u7684BIT\u6570\u91cf\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8ff0 non-HT\u4f5c\u4e3aWIFI\u7684\u7b2c\u4e00\u4e2aOFDM\u7269\u7406\u5c42\uff0c\u7b2c\u4e00\u6b21\u5f15\u5165\u662f\u5728802.11a\u534f\u8bae\u4e2d\uff0c802.11a\u5de5\u4f5c\u5728 &hellip; <a href=\"https:\/\/www.houyy.com\/index.php\/2025\/05\/13\/802-11-non-ht-phy\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">802.11 non-HT Phy<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/posts\/7","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/comments?post=7"}],"version-history":[{"count":5,"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/posts\/7\/revisions"}],"predecessor-version":[{"id":35,"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/posts\/7\/revisions\/35"}],"wp:attachment":[{"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/media?parent=7"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/categories?post=7"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.houyy.com\/index.php\/wp-json\/wp\/v2\/tags?post=7"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}