{"id":39466,"date":"2025-05-23T18:52:25","date_gmt":"2025-05-23T10:52:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/39466.html"},"modified":"2025-05-23T18:52:25","modified_gmt":"2025-05-23T10:52:25","slug":"%e5%9f%ba%e4%ba%8ecnn%e5%8d%b7%e7%a7%af%e7%a5%9e%e7%bb%8f%e7%bd%91%e7%bb%9c%e7%9a%84%e5%b8%a6%e9%a2%91%e5%81%8fqpsk%e8%b0%83%e5%88%b6%e4%bf%a1%e5%8f%b7%e6%a3%80%e6%b5%8b%e8%af%86%e5%88%ab%e7%ae%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/39466.html","title":{"rendered":"\u57fa\u4e8eCNN\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u7684\u5e26\u9891\u504fQPSK\u8c03\u5236\u4fe1\u53f7\u68c0\u6d4b\u8bc6\u522b\u7b97\u6cd5matlab\u4eff\u771f"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"1.%E7%AE%97%E6%B3%95%E8%BF%90%E8%A1%8C%E6%95%88%E6%9E%9C%E5%9B%BE%E9%A2%84%E8%A7%88-toc\" style=\"margin-left:0px\">1.\u7b97\u6cd5\u8fd0\u884c\u6548\u679c\u56fe\u9884\u89c8<\/p>\n<p id=\"2.%E7%AE%97%E6%B3%95%E8%BF%90%E8%A1%8C%E8%BD%AF%E4%BB%B6%E7%89%88%E6%9C%AC-toc\" style=\"margin-left:0px\">2.\u7b97\u6cd5\u8fd0\u884c\u8f6f\u4ef6\u7248\u672c<\/p>\n<p id=\"3.%E9%83%A8%E5%88%86%E6%A0%B8%E5%BF%83%E7%A8%8B%E5%BA%8F-toc\" style=\"margin-left:0px\">3.\u90e8\u5206\u6838\u5fc3\u7a0b\u5e8f<\/p>\n<p id=\"4.%E7%AE%97%E6%B3%95%E7%90%86%E8%AE%BA%E6%A6%82%E8%BF%B0-toc\" style=\"margin-left:0px\">4.\u7b97\u6cd5\u7406\u8bba\u6982\u8ff0<\/p>\n<p id=\"5.%E7%AE%97%E6%B3%95%E5%AE%8C%E6%95%B4%E7%A8%8B%E5%BA%8F%E5%B7%A5%E7%A8%8B-toc\" style=\"margin-left:0px\">5.\u7b97\u6cd5\u5b8c\u6574\u7a0b\u5e8f\u5de5\u7a0b<\/p>\n<hr id=\"hr-toc\" \/>\n<h2 id=\"1.%E7%AE%97%E6%B3%95%E8%BF%90%E8%A1%8C%E6%95%88%E6%9E%9C%E5%9B%BE%E9%A2%84%E8%A7%88\">1.\u7b97\u6cd5\u8fd0\u884c\u6548\u679c\u56fe\u9884\u89c8<\/h2>\n<p>(\u5b8c\u6574\u7a0b\u5e8f\u8fd0\u884c\u540e\u65e0\u6c34\u5370)<\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"735\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250523105223-68305367c7f1a.jpg\" width=\"980\" \/><\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"735\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250523105224-68305368044dd.jpg\" width=\"980\" \/><\/p>\n<h2 id=\"2.%E7%AE%97%E6%B3%95%E8%BF%90%E8%A1%8C%E8%BD%AF%E4%BB%B6%E7%89%88%E6%9C%AC\">2.\u7b97\u6cd5\u8fd0\u884c\u8f6f\u4ef6\u7248\u672c<\/h2>\n<p>matlab2024b<\/p>\n<h2 id=\"3.%E9%83%A8%E5%88%86%E6%A0%B8%E5%BF%83%E7%A8%8B%E5%BA%8F\">3.\u90e8\u5206\u6838\u5fc3\u7a0b\u5e8f<\/h2>\n<p>&#xff08;\u5b8c\u6574\u7248\u4ee3\u7801\u5305\u542b\u8be6\u7ec6\u4e2d\u6587\u6ce8\u91ca\u548c\u64cd\u4f5c\u6b65\u9aa4\u89c6\u9891&#xff09;<\/p>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..<br \/>\nfor loop &#061; 1:length(YTest(1, :))<br \/>\n    disp(loop); % \u663e\u793a\u5f53\u524d\u5faa\u73af\u6b21\u6570<br \/>\n    temp &#061; classify(net, XTest(:,:,:,:,loop)); % \u5bf9\u6d4b\u8bd5\u6570\u636e\u8fdb\u884c\u5206\u7c7b<\/p>\n<p>    for n &#061; 1:length(temp)<br \/>\n        if YTest(n, loop) &#061;&#061; &#039;ON&#039;<br \/>\n            if temp(n) ~&#061; YTest(n, loop)<br \/>\n                FDR(loop) &#061; FDR(loop) &#043; 1; % \u8bef\u68c0\u6b21\u6570\u52a0 1<br \/>\n            end<br \/>\n            cnt1 &#061; cnt1 &#043; 1; % ON \u72b6\u6001\u8ba1\u6570\u5668\u52a0 1<br \/>\n        else<br \/>\n            if temp(n) ~&#061; YTest(n, loop)<br \/>\n                MDR(loop) &#061; MDR(loop) &#043; 1; % \u6f0f\u68c0\u6b21\u6570\u52a0 1<br \/>\n            end<br \/>\n            cnt2 &#061; cnt2 &#043; 1; % OFF \u72b6\u6001\u8ba1\u6570\u5668\u52a0 1<br \/>\n        end<br \/>\n    end<br \/>\n    FDR(loop) &#061; FDR(loop) \/ cnt1; % \u8ba1\u7b97\u8bef\u68c0\u7387<br \/>\n    MDR(loop) &#061; MDR(loop) \/ cnt2; % \u8ba1\u7b97\u6f0f\u68c0\u7387<br \/>\n    ACC(loop) &#061; 1 &#8211; sum(temp ~&#061; YTest(:, loop)) \/ length(temp); % \u8ba1\u7b97\u51c6\u786e\u7387<br \/>\nend<\/p>\n<p>SNR &#061; -20:2:6; % \u4fe1\u566a\u6bd4\u8303\u56f4<\/p>\n<p>% \u7ed8\u5236\u8bef\u68c0\u7387\u548c\u6f0f\u68c0\u7387\u56fe<br \/>\nfigure;<br \/>\nsemilogy(SNR, FDR, &#039;bo-&#039;, &#039;LineWidth&#039;, 2); % \u7ed8\u5236\u8bef\u68c0\u7387\u66f2\u7ebf<br \/>\nhold on;<br \/>\ngrid on;<br \/>\ntitle(&#039;Miss &amp; False&#039;); % \u56fe\u6807\u9898<br \/>\nxlabel(&#039;SNR (dB)&#039;); % x \u8f74\u6807\u7b7e<br \/>\nylabel(&#039;Probability&#039;); % y \u8f74\u6807\u7b7e<br \/>\nlegend(&#039;False detection ratio&#039;); % \u56fe\u4f8b<\/p>\n<p>% \u7ed8\u5236\u51c6\u786e\u7387\u56fe<br \/>\nfigure;<br \/>\nplot(SNR, ACC, &#039;bo-&#039;, &#039;LineWidth&#039;, 2); % \u7ed8\u5236\u51c6\u786e\u7387\u66f2\u7ebf<br \/>\ngrid on;<br \/>\nxlabel(&#039;SNR (dB)&#039;); % x \u8f74\u6807\u7b7e<br \/>\nylabel(&#039;Total Accuracy&#039;); % y \u8f74\u6807\u7b7e<\/p>\n<p>% \u4fdd\u5b58\u7ed3\u679c<\/p>\n<p>if sel&#061;&#061;1<br \/>\n   save R1.mat FDR ACC SNR; % \u4fdd\u5b58 QPSK \u7684\u7ed3\u679c<br \/>\nend<br \/>\nif sel&#061;&#061;2<br \/>\n   save R2.mat FDR ACC SNR; % \u4fdd\u5b58 QPSK \u7684\u7ed3\u679c<br \/>\nend<br \/>\nif sel&#061;&#061;3<br \/>\n   save R3.mat FDR ACC SNR; % \u4fdd\u5b58 QPSK \u7684\u7ed3\u679c<br \/>\nend<br \/>\n217 <\/p>\n<h2 id=\"4.%E7%AE%97%E6%B3%95%E7%90%86%E8%AE%BA%E6%A6%82%E8%BF%B0\">4.\u7b97\u6cd5\u7406\u8bba\u6982\u8ff0<\/h2>\n<p style=\"text-align:justify\">QPSK \u8c03\u5236\u539f\u7406&#xff1a;QPSK&#xff08;\u56db\u76f8\u76f8\u79fb\u952e\u63a7&#xff09;\u662f\u4e00\u79cd\u5e38\u7528\u7684\u6570\u5b57\u8c03\u5236\u65b9\u5f0f\u3002\u5b83\u5c06\u8f93\u5165\u7684\u4e8c\u8fdb\u5236\u6bd4\u7279\u6d41\u5206\u6210\u4e24\u8def&#xff0c;\u5206\u522b\u8fdb\u884c\u6b63\u4ea4\u8c03\u5236\u3002\u5177\u4f53\u6765\u8bf4&#xff0c;\u8bbe\u8f93\u5165\u7684\u4e8c\u8fdb\u5236\u6bd4\u7279\u6d41\u4e3ab(t)&#xff0c;\u5c06\u5176\u5206\u4e3a\u4e24\u8defI(t)\u548cQ(t)&#xff0c;\u6bcf\u8def\u7684\u6bd4\u7279\u901f\u7387\u662f\u539f\u6bd4\u7279\u6d41\u7684\u4e00\u534a\u3002\u7136\u540e&#xff0c;\u7528\u8fd9\u4e24\u8def\u4fe1\u53f7\u5206\u522b\u5bf9\u8f7d\u6ce2\u7684\u540c\u76f8\u5206\u91cf\u548c\u6b63\u4ea4\u5206\u91cf\u8fdb\u884c\u8c03\u5236\u3002\u6570\u5b66\u8868\u8fbe\u5f0f\u4e3a&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"198\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250523105224-68305368333be.png\" width=\"1143\" \/><\/p>\n<p style=\"text-align:justify\">\u00a0 \u00a0 \u00a0 \u5728\u5b9e\u9645\u901a\u4fe1\u4e2d&#xff0c;\u7531\u4e8e\u6536\u53d1\u4e24\u7aef\u7684\u8f7d\u6ce2\u9891\u7387\u53ef\u80fd\u5b58\u5728\u504f\u5dee&#xff0c;\u4f1a\u5bfc\u81f4\u63a5\u6536\u5230\u7684 QPSK \u4fe1\u53f7\u4ea7\u751f\u9891\u504f\u3002\u8bbe\u9891\u504f\u4e3a\u0394\u03c9&#xff0c;\u5219\u63a5\u6536\u5230\u7684\u5e26\u9891\u504f QPSK \u4fe1\u53f7\u53ef\u4ee5\u8868\u793a\u4e3a&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"57\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250523105224-68305368547de.png\" width=\"543\" \/><\/p>\n<p style=\"text-align:justify\">\u00a0 \u00a0 \u00a0 \u5176\u4e2dn(t)\u662f\u52a0\u6027\u9ad8\u65af\u767d\u566a\u58f0\u3002\u9891\u504f\u4f1a\u4f7f QPSK\u4fe1\u53f7\u7684\u76f8\u4f4d\u53d1\u751f\u7ebf\u6027\u53d8\u5316&#xff0c;\u4ece\u800c\u5f71\u54cd\u4fe1\u53f7\u7684\u68c0\u6d4b\u548c\u8bc6\u522b\u3002<\/p>\n<p style=\"text-align:justify\">\u00a0 \u00a0 \u00a0 \u5377\u79ef\u795e\u7ecf\u7f51\u7edc&#xff08;CNN&#xff09;\u5728\u56fe\u50cf\u5904\u7406\u548c\u4fe1\u53f7\u5904\u7406\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u5bf9\u4e8e\u5e26\u9891\u504fQPSK\u8c03\u5236\u4fe1\u53f7\u68c0\u6d4b\u8bc6\u522b&#xff0c;CNN\u53ef\u4ee5\u81ea\u52a8\u5b66\u4e60\u4fe1\u53f7\u7684\u7279\u5f81&#xff0c;\u901a\u8fc7\u5377\u79ef\u5c42\u63d0\u53d6\u4fe1\u53f7\u7684\u5c40\u90e8\u7279\u5f81&#xff0c;\u6c60\u5316\u5c42\u5bf9\u7279\u5f81\u8fdb\u884c\u538b\u7f29\u548c\u964d\u7ef4&#xff0c;\u5168\u8fde\u63a5\u5c42\u5c06\u63d0\u53d6\u7684\u7279\u5f81\u8fdb\u884c\u5206\u7c7b\u3002CNN\u80fd\u591f\u81ea\u9002\u5e94\u5730\u5904\u7406\u9891\u504f\u5e26\u6765\u7684\u76f8\u4f4d\u53d8\u5316&#xff0c;\u901a\u8fc7\u5927\u91cf\u7684\u8bad\u7ec3\u6570\u636e\u5b66\u4e60\u5230\u4e0d\u540c\u9891\u504f\u4e0bQPSK\u4fe1\u53f7\u7684\u7279\u5f81\u6a21\u5f0f&#xff0c;\u4ece\u800c\u5b9e\u73b0\u51c6\u786e\u7684\u68c0\u6d4b\u548c\u8bc6\u522b\u3002<\/p>\n<p style=\"text-align:justify\">\u00a0 \u00a0 \u00a0 \u00a0 \u5c06\u9884\u5904\u7406\u540e\u7684\u6570\u636e\u5206\u4e3a\u8bad\u7ec3\u96c6\u548c\u9a8c\u8bc1\u96c6&#xff0c;\u4f7f\u7528\u8bad\u7ec3\u96c6\u5bf9 CNN \u6a21\u578b\u8fdb\u884c\u8bad\u7ec3\u3002\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d&#xff0c;\u5c06\u4e00\u6279\u8bad\u7ec3\u6570\u636e\u8f93\u5165\u5230\u6a21\u578b\u4e2d&#xff0c;\u8ba1\u7b97\u635f\u5931\u51fd\u6570\u5e76\u901a\u8fc7\u4f18\u5316\u7b97\u6cd5\u66f4\u65b0\u6a21\u578b\u7684\u53c2\u6570\u3002\u540c\u65f6&#xff0c;\u5728\u9a8c\u8bc1\u96c6\u4e0a\u8bc4\u4f30\u6a21\u578b\u7684\u6027\u80fd&#xff0c;\u6839\u636e\u9a8c\u8bc1\u96c6\u7684\u635f\u5931\u548c\u51c6\u786e\u7387\u7b49\u6307\u6807\u6765\u8c03\u6574\u6a21\u578b\u7684\u8d85\u53c2\u6570&#xff0c;\u5982\u5b66\u4e60\u7387\u3001\u5377\u79ef\u6838\u5927\u5c0f\u3001\u5c42\u6570\u7b49&#xff0c;\u76f4\u5230\u6a21\u578b\u6536\u655b\u6216\u8fbe\u5230\u9884\u8bbe\u7684\u8bad\u7ec3\u8f6e\u6570\u3002<\/p>\n<h2 id=\"5.%E7%AE%97%E6%B3%95%E5%AE%8C%E6%95%B4%E7%A8%8B%E5%BA%8F%E5%B7%A5%E7%A8%8B\">5.\u7b97\u6cd5\u5b8c\u6574\u7a0b\u5e8f\u5de5\u7a0b<\/h2>\n<p style=\"text-align:center\"><span style=\"color:#fe2c24\">OOOOO<\/span><\/p>\n<p style=\"text-align:center\"><span style=\"color:#fe2c24\">OOO<\/span><\/p>\n<p style=\"text-align:center\"><span style=\"color:#fe2c24\">O<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb902\u6b21\uff0c\u70b9\u8d5e4\u6b21\uff0c\u6536\u85cf8\u6b21\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e00\u79cd\u57fa\u4e8e\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\uff08CNN\uff09\u7684QPSK\u8c03\u5236\u4fe1\u53f7\u68c0\u6d4b\u4e0e\u8bc6\u522b\u7b97\u6cd5\u3002\u6587\u7ae0\u9996\u5148\u5c55\u793a\u4e86\u7b97\u6cd5\u8fd0\u884c\u6548\u679c\u56fe\uff0c\u5e76\u63d0\u4f9b\u4e86Matlab 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