{"id":29288,"date":"2023-09-15T04:41:39","date_gmt":"2023-09-14T20:41:39","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=29288"},"modified":"2023-09-15T04:41:39","modified_gmt":"2023-09-14T20:41:39","slug":"bjsztzdk","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/29288.html","title":{"rendered":"\u6bd4\u8f83\u6570\u5b57\u8c03\u5236\u5e26\u5bbd"},"content":{"rendered":"

  \u5f53\u4eca\uff0c\u6570\u5b57\u8c03\u5236\u5e26\u5bbd\u6280\u672f\u5df2\u6210\u4e3a\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u4f20\u8f93\u901f\u7387\uff0c\u66f4\u597d\u7684\u4fe1\u53f7\u8d28\u91cf\u548c\u66f4\u9ad8\u7684\u7f51\u7edc\u5bb9\u91cf\u3002\u672c\u6587\u5c06\u6bd4\u8f83\u5e38\u89c1\u7684\u6570\u5b57\u8c03\u5236\u5e26\u5bbd\u6280\u672f\uff0c\u4ee5\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u5b83\u4eec\u4e4b\u95f4\u7684\u5dee\u5f02\uff0c\u5e76\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u9009\u62e9\u6700\u9002\u5408\u60a8\u7684\u6280\u672f\u3002<\/p>\n

QAM\u548cQPSK\u7684\u6bd4\u8f83<\/h2>\n

QAM\uff08\u6b63\u4ea4\u8c03\u5236\u591a\u8def\u590d\u7528\uff09<\/h3>\n

  QAM\u662f\u4e00\u79cd\u9ad8\u7ea7\u6570\u5b57\u8c03\u5236\u65b9\u5f0f\uff0c\u5b83\u53ef\u4ee5\u540c\u65f6\u4f20\u8f93\u591a\u4e2a\u4fe1\u53f7\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7387\u3002\u5b83\u7684\u8c03\u5236\u7b49\u7ea7\u53ef\u4ee5\u8fbe\u5230256\u7ea7\uff0c\u6bd4\u8f83QPSK\u76844\u7ea7\u8c03\u5236\u8981\u9ad8\u5f97\u591a\u3002\u6b64\u5916\uff0cQAM\u8fd8\u5177\u6709\u66f4\u5927\u7684\u4fe1\u566a\u6bd4\uff0c\u53ef\u4ee5\u6709\u6548\u6291\u5236\u566a\u58f0\u5e72\u6270\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n

QPSK\uff08\u6b63\u4ea4\u76f8\u79fb\u8c03\u5236\uff09<\/h3>\n

  QPSK\u662f\u4e00\u79cd\u57fa\u672c\u7684\u6570\u5b57\u8c03\u5236\u65b9\u5f0f\uff0c\u5b83\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u6570\u636e\u7b26\u53f7\u5206\u89e3\u4e3a\u4e24\u4e2a\u76f8\u79fb\u8c03\u5236\u4fe1\u53f7\uff0c\u5e76\u5c06\u5b83\u4eec\u6df7\u5408\u5728\u4e00\u8d77\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7387\u3002\u5b83\u7684\u8c03\u5236\u7b49\u7ea7\u53ea\u67094\u7ea7\uff0c\u6bd4QAM\u7684256\u7ea7\u8981\u4f4e\u5f97\u591a\u3002\u6b64\u5916\uff0cQPSK\u7684\u4fe1\u566a\u6bd4\u4e5f\u8f83\u4f4e\uff0c\u4e0d\u80fd\u6709\u6548\u6291\u5236\u566a\u58f0\u5e72\u6270\uff0c\u964d\u4f4e\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n

OFDM\u548cOFDMA\u7684\u6bd4\u8f83<\/h2>\n

OFDM\uff08\u6b63\u4ea4\u9891\u5206\u591a\u5740\uff09<\/h3>\n

  OFDM\u662f\u4e00\u79cd\u57fa\u4e8e\u6b63\u4ea4\u8c03\u5236\u7684\u591a\u5740\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u5c06\u4e00\u4e2a\u4fe1\u53f7\u5206\u89e3\u4e3a\u591a\u4e2a\u5b50\u4fe1\u53f7\uff0c\u5e76\u5c06\u5b83\u4eec\u5206\u522b\u53d1\u9001\u5230\u4e0d\u540c\u7684\u9891\u9053\u4e0a\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7387\u3002\u5b83\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u6709\u6548\u6291\u5236\u591a\u5f84\u8870\u843d\uff0c\u62b5\u6297\u5e72\u6270\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n

OFDMA\uff08\u6b63\u4ea4\u9891\u5206\u591a\u5740\u591a\u8def\u590d\u7528\uff09<\/h3>\n

  OFDMA\u662f\u57fa\u4e8eOFDM\u7684\u4e00\u79cd\u9ad8\u7ea7\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u5c06\u4e00\u4e2a\u4fe1\u53f7\u5206\u89e3\u4e3a\u591a\u4e2a\u5b50\u4fe1\u53f7\uff0c\u5e76\u5c06\u5b83\u4eec\u5206\u522b\u53d1\u9001\u5230\u4e0d\u540c\u7684\u9891\u9053\u4e0a\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7387\u3002\u5b83\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u4ee5\u6709\u6548\u6291\u5236\u591a\u5f84\u8870\u843d\uff0c\u62b5\u6297\u5e72\u6270\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u591a\u7528\u6237\u5171\u4eab\uff0c\u63d0\u9ad8\u7f51\u7edc\u5bb9\u91cf\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u4ece\u4e0a\u6587\u53ef\u4ee5\u770b\u51fa\uff0cQAM\u548cQPSK\u662f\u5e38\u89c1\u7684\u6570\u5b57\u8c03\u5236\u5e26\u5bbd\u6280\u672f\uff0c\u5b83\u4eec\u7684\u8c03\u5236\u7b49\u7ea7\u548c\u4fe1\u566a\u6bd4\u6709\u5f88\u5927\u7684\u4e0d\u540c\u3002<\/strong>\u6b64\u5916\uff0c\u8fd8\u6709OFDM\u548cOFDMA\uff0c\u5b83\u4eec\u53ef\u4ee5\u6709\u6548\u6291\u5236\u591a\u5f84\u8870\u843d\uff0c\u62b5\u6297\u5e72\u6270\uff0c\u63d0\u9ad8\u4fe1\u53f7\u8d28\u91cf\u3002\u603b\u4e4b\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\uff0c\u4ece\u4e2d\u9009\u62e9\u4e00\u79cd\u6700\u9002\u5408\u81ea\u5df1\u7684\u6570\u5b57\u8c03\u5236\u5e26\u5bbd\u6280\u672f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5f53\u4eca\uff0c\u6570\u5b57\u8c03\u5236\u5e26\u5bbd\u6280\u672f\u5df2\u6210\u4e3a\u73b0\u4ee3\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u4f20\u8f93\u901f\u7387\uff0c\u66f4\u597d\u7684\u4fe1\u53f7\u8d28\u91cf\u548c\u66f4\u9ad8\u7684\u7f51\u7edc\u5bb9\u91cf\u3002\u672c\u6587\u5c06\u6bd4\u8f83\u5e38\u89c1\u7684\u6570\u5b57\u8c03\u5236\u5e26\u5bbd\u6280\u672f\uff0c\u4ee5\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3<\/p>\n","protected":false},"author":1,"featured_media":3671,"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":[52],"class_list":["post-29288","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-wxtx"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/29288","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=29288"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/29288\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/3671"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=29288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=29288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=29288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}