{"id":3071,"date":"2023-11-17T21:50:50","date_gmt":"2023-11-17T13:50:50","guid":{"rendered":"http:\/\/khsci.com\/docs\/?p=3071"},"modified":"2024-04-07T21:23:27","modified_gmt":"2024-04-07T13:23:27","slug":"stft","status":"publish","type":"post","link":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/","title":{"rendered":"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801"},"content":{"rendered":"\n

\u4e00\u3001\u4ee3\u7801\u8fd0\u884c\u73af\u5883<\/strong><\/h4>\n\n\n\n

MATLAB2019a\u53ca\u66f4\u65b0\u7248\u672c\u3002<\/p>\n\n\n\n

\u4e8c\u3001\u7a0b\u5e8f\u4ecb\u7ecd<\/strong><\/h4>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n

\u6ce8\uff1a\u56fe\u6807\u4ee3\u8868\u8be5m\u6587\u4ef6\u4e3a\u811a\u672c\u6587\u4ef6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\uff1b\u56fe\u6807\u4ee3\u8868\u51fd\u6570\u6587\u4ef6\uff0c\u5728\u6ca1\u6709\u8f93\u5165\u53d8\u91cf\u7684\u60c5\u51b5\u4e0b\u65e0\u6cd5\u76f4\u63a5\u8fd0\u884c\u3002\u66f4\u8be6\u7ec6\u7684\u89e3\u91ca\u53ef\u4ee5\u770b\u8fd9\u91cc<\/a>\u3002<\/p>\n\n\n\n

1.demoSTFT.m\u6587\u4ef6<\/strong><\/p>\n\n\n\n

\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362\u753b\u56fe\u51fd\u6570pSTFT2D.m\u3001pSTFT3D.m\u7684\u6d4b\u8bd5\u811a\u672c\u6587\u4ef6\uff0c\u5176\u4e2d\u6709\u4ee3\u7801\u8c03\u7528\u7684\u6f14\u793a\u6848\u4f8b\u3002<\/p>\n\n\n\n

\u6587\u4ef6\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\u3002\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6210\u540e\uff0c\u5c06\u4f1a\u753b\u51fa\u5982\u4e0b\u56fe\u50cf\uff1a<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n
\n
\"\"<\/figure><\/div>\n\n\n

2.pSTFT2D.m\u6587\u4ef6<\/strong><\/p>\n\n\n\n

\u8fd9\u4e2a\u51fd\u6570\u8ba1\u7b97\u7ed9\u5b9a\u4fe1\u53f7\u7684\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362\uff08STFT\uff09\uff0c\u5e76\u7ed8\u5236\u7ed3\u679c\u7684\u4e8c\u7ef4\u56fe\u50cf\u3002<\/p>\n\n\n\n

\u4ee3\u7801\u8bf4\u660e\uff1a<\/p>\n\n\n\n

function stftData = pSTFT2D(data, Fs, windowType, windowSize, overlap, FFTLength)\n    % pSTFT2D - \u7ed8\u5236STFT\u7684\u4e8c\u7ef4\u56fe\u5f62\n    % \u8fd9\u4e2a\u51fd\u6570\u8ba1\u7b97\u7ed9\u5b9a\u4fe1\u53f7\u7684\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362\uff08STFT\uff09\uff0c\u5e76\u7ed8\u5236\u7ed3\u679c\u7684\u4e8c\u7ef4\u56fe\u50cf\u3002\n    %\n    % \u8f93\u5165:\n    %   data - \u5f85\u5206\u6790\u6570\u636e\uff0c\u4e00\u7ef4\u4fe1\u53f7\u6570\u7ec4\u3002\n    %   Fs - \u91c7\u6837\u9891\u7387\uff0c\u5355\u4f4d\u4e3aHz\u3002\n    %   windowType - \u7a97\u53e3\u51fd\u6570\u7684\u53e5\u67c4\uff0c\u4f8b\u5982 @hann \u6216 @hamming\u3002\u66f4\u591a\u5173\u4e8e\u7a97\u7684\u4ecb\u7ecd\u53ef\u4ee5\u770b\u8fd9\u91cc\uff1ahttps:\/\/ww2.mathworks.cn\/help\/signal\/ug\/windows.html\n    %                \u8fd9\u6307\u5b9a\u4e86STFT\u4e2d\u4f7f\u7528\u7684\u7a97\u53e3\u7c7b\u578b\u3002\n    %   windowSize - \u7a97\u53e3\u5927\u5c0f\uff0c\u4ee5\u6837\u672c\u6570\u4e3a\u5355\u4f4d\u3002\n    %                \u8fd9\u51b3\u5b9a\u4e86\u6bcf\u4e2aSTFT\u7a97\u53e3\u5305\u542b\u7684\u6837\u672c\u6570\u3002\n    %   overlap - \u7a97\u53e3\u91cd\u53e0\u5927\u5c0f\uff0c\u4ee5\u6837\u672c\u6570\u4e3a\u5355\u4f4d\u3002\n    %             \u8fd9\u6307\u5b9a\u4e86\u76f8\u90bb\u7a97\u53e3\u4e4b\u95f4\u7684\u91cd\u53e0\u6837\u672c\u6570\u3002\n    %   FFTLength - \u5728\u6bcf\u4e2a\u7a97\u53e3\u4e0a\u6267\u884cFFT\u7684\u70b9\u6570\u3002\n    %               \u8fd9\u53ef\u4ee5\u5f71\u54cd\u9891\u7387\u5206\u8fa8\u7387\u548cSTFT\u7684\u8ba1\u7b97\u8d1f\u8377\u3002\n    % \u8f93\u51fa\uff1a\n    % stftData\u4e3aSTFT\u7684\u8ba1\u7b97\u7ed3\u679c<\/code><\/pre>\n\n\n\n
3.pSTFT3D.m\u6587\u4ef6<\/strong><\/p>\n\n\n\n
\u6b64\u51fd\u6570\u8ba1\u7b97\u7ed9\u5b9a\u4fe1\u53f7\u7684\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362\uff08STFT\uff09\uff0c\u5e76\u7ed8\u5236\u7ed3\u679c\u7684\u4e09\u7ef4\u56fe\u50cf\u3002<\/p>\n\n\n\n
\u4ee3\u7801\u8bf4\u660e\uff1a<\/p>\n\n\n\n
function stftData = pSTFT3D(data, Fs, windowType, windowSize, overlap, FFTLength)\n    % pSTFT3D - \u7ed8\u5236STFT\u7684\u4e09\u7ef4\u56fe\u5f62\n    % \u6b64\u51fd\u6570\u8ba1\u7b97\u7ed9\u5b9a\u4fe1\u53f7\u7684\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362\uff08STFT\uff09\uff0c\u5e76\u7ed8\u5236\u7ed3\u679c\u7684\u4e09\u7ef4\u56fe\u50cf\u3002\n    %\n    % \u8f93\u5165:\n    %   data - \u5f85\u5206\u6790\u6570\u636e\uff0c\u4e00\u7ef4\u4fe1\u53f7\u6570\u7ec4\u3002\n    %   Fs - \u91c7\u6837\u9891\u7387\uff0c\u5355\u4f4d\u4e3aHz\u3002\n    %   windowType - \u7a97\u53e3\u51fd\u6570\u7684\u53e5\u67c4\uff0c\u4f8b\u5982 @hann \u6216 @hamming\u3002\u66f4\u591a\u5173\u4e8e\u7a97\u7684\u4ecb\u7ecd\u53ef\u4ee5\u770b\u8fd9\u91cc\uff1ahttps:\/\/ww2.mathworks.cn\/help\/signal\/ug\/windows.html\n    %                \u8fd9\u6307\u5b9a\u4e86STFT\u4e2d\u4f7f\u7528\u7684\u7a97\u53e3\u7c7b\u578b\u3002\n    %   windowSize - \u7a97\u53e3\u5927\u5c0f\uff0c\u4ee5\u6837\u672c\u6570\u4e3a\u5355\u4f4d\u3002\n    %                \u8fd9\u51b3\u5b9a\u4e86\u6bcf\u4e2aSTFT\u7a97\u53e3\u5305\u542b\u7684\u6837\u672c\u6570\u3002\n    %   overlap - \u7a97\u53e3\u91cd\u53e0\u5927\u5c0f\uff0c\u4ee5\u6837\u672c\u6570\u4e3a\u5355\u4f4d\u3002\n    %             \u8fd9\u6307\u5b9a\u4e86\u76f8\u90bb\u7a97\u53e3\u4e4b\u95f4\u7684\u91cd\u53e0\u6837\u672c\u6570\u3002\n    %   FFTLength - \u5728\u6bcf\u4e2a\u7a97\u53e3\u4e0a\u6267\u884cFFT\u7684\u70b9\u6570\u3002\n    %               \u8fd9\u53ef\u4ee5\u5f71\u54cd\u9891\u7387\u5206\u8fa8\u7387\u548cSTFT\u7684\u8ba1\u7b97\u8d1f\u8377\u3002\n    %\n    % \u8f93\u51fa\uff1a\n    % stftData\u4e3aSTFT\u7684\u8ba1\u7b97\u7ed3\u679c<\/code><\/pre>\n\n\n\n
\u4e09\u3001\u5feb\u901f\u5f00\u59cb<\/h4>\n\n\n\n
1.\u8fd0\u884c\u6d4b\u8bd5\u811a\u672c<\/strong><\/p>\n\n\n\n
\u5148\u5728MATLAB\u91cc\u6253\u5f00\u4e0b\u8f7d\u597d\u7684\u6587\u4ef6\u5939\uff0c\u7136\u540e\u8fd0\u884cdemoSTFT<\/strong>.m<\/strong>\u7a0b\u5e8f\uff0c\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6bd5\u540e\u5982\u679c\u6ca1\u62a5\u9519\uff0c\u4e14\u6b63\u5e38\u753b\u51fa\u4e0a\u8ff0\u56fe\u50cf\uff0c\u5219\u8bf4\u660e\u8fd0\u884c\u73af\u5883\u6b63\u5e38\uff0c\u7a0b\u5e8f\u6b63\u786e\u3002<\/p>\n\n\n\n
2.\u4fee\u6539\u4eff\u771f\u6570\u636e\/\u5bfc\u5165\u6570\u636e<\/strong><\/p>\n\n\n\n
\u590d\u5236\u4e00\u4e2ademoSTFT<\/strong><\/strong>.m<\/strong>\u7684\u6587\u4ef6\u526f\u672c\uff0c\u5728\u8fd9\u4e2a\u526f\u672c\u91cc\u505a\u5982\u4e0b\u4fee\u6539\uff1a<\/p>\n\n\n\n
\uff081\uff09\u7b2c\u4e00\u79cd\u60c5\u51b5\uff0c\u4f60\u53ef\u80fd\u60f3\u8981\u5bf9\u4f60\u81ea\u5df1\u8981\u7814\u7a76\u7684\u4eff\u771f\u6570\u636e<\/strong>\u8fdb\u884c\u6ee4\u6ce2\u6d4b\u8bd5\uff0c\u6b64\u65f6\u4f60\u9700\u8981\u5bf9 demoWPT<\/strong><\/strong>.m<\/strong> \u811a\u672c\u6587\u4ef6\u4e2d\u7684\u7b2c1\u5c0f\u8282\u5185\u5bb9\u8fdb\u884c\u4fee\u6539\u66ff\u6362\u5373\u53ef\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8bf7\u6700\u597d\u4fdd\u6301\u53d8\u91cf\u540d\u7684\u4e00\u81f4<\/strong>\uff0c\u5373\u5c06\u5f85\u5206\u6790\u4fe1\u53f7\u547d\u540d\u4e3adata\uff0c\u4e3a\u4e00\u7ef4\u6570\u636e\u3002\u6b64\u65f6\u6570\u636e\u66ff\u6362\u5b8c\u6210\u3002<\/p>\n\n\n\n
\uff082\uff09\u7b2c\u4e8c\u79cd\u60c5\u51b5\uff0c\u4f60\u53ef\u80fd\u662f\u60f3\u5bf9\u4e00\u6bb5\u771f\u5b9e\u91c7\u96c6<\/strong>\u7684\u6570\u636e\u8fdb\u884c\u6ee4\u6ce2\uff0c\u6b64\u65f6\u9700\u8981\u6839\u636e\u4f60\u7684\u6587\u4ef6\u7c7b\u578b\u7684\u4e0d\u540c\uff08excel,txt,csv\u7b49\uff09\uff0c\u5c06\u6570\u636e\u5bfc\u5165MATLAB\u7684\u65b9\u6cd5\u6709\u6240\u4e0d\u540c\u3002\u540c\u5b66\u4eec\u53ef\u4ee5\u770b\u535a\u4e3b\u9488\u5bf9\u5e38\u7528\u6587\u4ef6\u7684\u5bfc\u5165\u65b9\u6cd5\u7684\u8fd9\u4e2a\u6559\u7a0b<\/a>\uff0c\u6559\u7a0b\u4e0a\u672a\u5305\u542b\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5927\u5bb6\u53ef\u4ee5\u518d\u53c2\u8003\u8fd9\u4e2a\u6587\u6863<\/a>\u3002\u5bfc\u5165\u5b8c\u6210\u540e\u8bf7\u5c06\u8fd9\u4e2a\u5f85\u5206\u6790\u4fe1\u53f7\u547d\u540d\u4e3adata<\/strong>\u3002<\/p>\n\n\n\n
3.\u5b9e\u73b0STFT<\/strong><\/p>\n\n\n\n
\u53c2\u7167\u811a\u672c\u6587\u4ef6\u4e2d\u7b2c\u4e8c\u6b65\uff0c\u6839\u636e\u9700\u8981\u8c03\u6574\u76f8\u5173\u53c2\u6570\u3002<\/p>\n\n\n\n
\u8fd0\u884c\u7a0b\u5e8f\u5373\u53ef\u3002<\/p>\n\n\n\n
\u56db\u3001\u5173\u4e8e\u5b8c\u6574\u7248\u4e0e\u516c\u5f00\u7248\u4ee3\u7801<\/h4>\n\n\n\n
\u529f\u80fd<\/strong><\/td>\u5b8c\u6574\u7248<\/strong><\/td>\u516c\u5f00\u7248<\/strong><\/td><\/tr>
\u6570\u636e\u5bfc\u5165\u3001\u53c2\u6570\u8bbe\u7f6e\u3001\u5b9e\u73b0\u6ee4\u6ce2<\/td>\u221a<\/td>\u221a<\/td><\/tr>
\u8f6f\u4ef6\u5168\u90e8\u6e90\u7801\uff08\u51fd\u6570m\u6587\u4ef6\uff09<\/td>\u221a<\/td>\u00d7<\/td><\/tr>
\u753b\u56fe\u6c34\u5370<\/td>\u6709\u6c34\u5370<\/td>\u65e0\u6c34\u5370<\/td><\/tr>
\u53ef\u5206\u6790\u6570\u636e\u957f\u5ea6<\/td>\u65e0\u9650\u5236<\/td>300\u4e2a\u70b9\u4ee5\u5185<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u4e94\u3001\u83b7\u53d6\u516c\u5f00\u7248\u7a0b\u5e8f\uff08\u9700\u4f7f\u7528\u7535\u8111\u6d4f\u89c8\u5668\u6253\u5f00\uff09<\/h4>\n\n\n\n
\n\n    
\n                
STFT\u516c\u5f00\u7248\u4ee3\u7801V2<\/h3>\n        
\n                    
\u6587\u4ef6\u5c3a\u5bf8: 33.74 KB<\/div>\n                    
\u66f4\u65b0: 17-11-2023<\/div>\n        <\/div>\n    <\/div>\n    
\n                \n                    <\/g><\/svg>\n                    \u4e0b\u8f7d<\/span>\n                <\/a>\n    <\/div>\n<\/div>\n\n\n\n\n
\u6ce8\uff1a\u516c\u5f00\u7248\u4ee3\u7801\u9700\u4f7f\u7528MATLAB2022a\u53ca\u4ee5\u4e0a\u7248\u672c<\/p>\n\n\n\n
\u516d\u3001\u83b7\u53d6\u5b8c\u6574\u7248\u7a0b\u5e8f\uff08\u4f7f\u7528\u7535\u8111\u6d4f\u89c8\u5668\u6216\u8005\u624b\u673a\u6d4f\u89c8\u5668\u6253\u5f00\uff09<\/h4>\n\n\n\n
\u83b7\u53d6\u901a\u9053\u4e00\uff08\u6dd8\u5b9d\uff09\uff1a<\/strong>\u70b9\u51fb\u6b64\u5904\u83b7\u53d6\u5b8c\u6574\u7248\u7a0b\u5e8f<\/a><\/p>\n\n\n\n
\u83b7\u53d6\u901a\u9053\u4e8c\uff08\u672c\u9875\u9762\uff09\uff1a<\/strong>\u70b9\u51fb\u4e0b\u9762\u201c\u7acb\u5373\u652f\u4ed8\u201d\u6309\u94ae\uff0c\u4ed8\u6b3e\u540e\u83b7\u53d6\u5b8c\u6574\u7248\u4ee3\u7801\u4e0b\u8f7d\u94fe\u63a5\u548c\u552e\u540e\u8054\u7cfb\u65b9\u5f0f~\u672c\u901a\u9053\u5904\u4e8e\u6d4b\u8bd5\u9636\u6bb5\uff0c\u4f7f\u7528\u8be5\u901a\u9053\u53ef\u4ee5\u989d\u5916\u4f18\u60e0\uff08\u4ec5\u970026\u5143\uff09\u3002\u4ed8\u6b3e\u5b8c\u6210\u540e\u5237\u65b0\u4e00\u4e0b\u672c\u9875\u9762\u5373\u53ef\u770b\u5230\u4e0b\u8f7d\u94fe\u63a5\u3002<\/strong><\/p>\n\n\n\n
\uff08\u6ce8\u610f\u652f\u4ed8\u8df3\u8f6c\u5931\u8d25\u7684\u8bdd\uff0c\u8bf7\u4f7f\u7528\u6d4f\u89c8\u5668\u6253\u5f00\u672c\u9875\u9762\uff09<\/p>\n\n\n
\n\t\t\t\t\u60a8\u9700\u8981\u5148\u652f\u4ed8 26\u5143<\/b> \u624d\u80fd\u67e5\u770b\u6b64\u5904\u5185\u5bb9\uff01\u7acb\u5373\u652f\u4ed8<\/a>\n\t\t\t<\/div><\/p>\n\n\n\n
\u4e03\u3001\u5b8c\u6574\u7248\u4ee3\u7801\u91cd\u8981\u66f4\u65b0<\/h4>\n\n\n\n
20231117 \u4ee3\u7801\u521d\u59cb\u7248\u672c\uff08\u516c\u5f00\u7248\u6240\u5728\u7248\u672c\uff09<\/p>\n\n\n\n
\u516b\u3001\u5e38\u89c1\u95ee\u9898<\/h4>\n\n\n\n
\u65e0<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u4ee3\u7801\u8fd0\u884c\u73af\u5883 MATLAB2019a\u53ca\u66f4\u65b0\u7248\u672c\u3002 \u4e8c\u3001\u7a0b\u5e8f\u4ecb\u7ecd \u6ce8\uff1a\u56fe\u6807\u4ee3\u8868\u8be5m\u6587\u4ef6\u4e3a\u811a\u672c\u6587\u4ef6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0 […]<\/p>\n","protected":false},"author":1,"featured_media":3077,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"yoast_head":"\n\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801 - \u5de5\u5177\u7bb1\u6587\u6863<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801 - \u5de5\u5177\u7bb1\u6587\u6863\" \/>\n<meta property=\"og:description\" content=\"\u4e00\u3001\u4ee3\u7801\u8fd0\u884c\u73af\u5883 MATLAB2019a\u53ca\u66f4\u65b0\u7248\u672c\u3002 \u4e8c\u3001\u7a0b\u5e8f\u4ecb\u7ecd \u6ce8\uff1a\u56fe\u6807\u4ee3\u8868\u8be5m\u6587\u4ef6\u4e3a\u811a\u672c\u6587\u4ef6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/\" \/>\n<meta property=\"og:site_name\" content=\"\u5de5\u5177\u7bb1\u6587\u6863\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-17T13:50:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-07T13:23:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.khsci.com\/docs\/wp-content\/uploads\/2023\/11\/image-8.png\" \/>\n\t<meta property=\"og:image:width\" content=\"531\" \/>\n\t<meta property=\"og:image:height\" content=\"401\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"kuohao\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"kuohao\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/\"},\"author\":{\"name\":\"kuohao\",\"@id\":\"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5\"},\"headline\":\"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801\",\"datePublished\":\"2023-11-17T13:50:50+00:00\",\"dateModified\":\"2024-04-07T13:23:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/\"},\"wordCount\":50,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/\",\"url\":\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/\",\"name\":\"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801 - \u5de5\u5177\u7bb1\u6587\u6863\",\"isPartOf\":{\"@id\":\"https:\/\/www.khsci.com\/docs\/#website\"},\"datePublished\":\"2023-11-17T13:50:50+00:00\",\"dateModified\":\"2024-04-07T13:23:27+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.khsci.com\/docs\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.khsci.com\/docs\/#website\",\"url\":\"https:\/\/www.khsci.com\/docs\/\",\"name\":\"\u5de5\u5177\u7bb1\u6587\u6863\",\"description\":\"khToolbox\",\"publisher\":{\"@id\":\"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.khsci.com\/docs\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5\",\"name\":\"kuohao\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/khsci.com\/docs\/wp-content\/uploads\/2022\/11\/logo-1.png\",\"contentUrl\":\"https:\/\/khsci.com\/docs\/wp-content\/uploads\/2022\/11\/logo-1.png\",\"width\":255,\"height\":97,\"caption\":\"kuohao\"},\"logo\":{\"@id\":\"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/image\/\"},\"url\":\"https:\/\/www.khsci.com\/docs\/index.php\/author\/kuohao\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801 - \u5de5\u5177\u7bb1\u6587\u6863","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/","og_locale":"zh_CN","og_type":"article","og_title":"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801 - \u5de5\u5177\u7bb1\u6587\u6863","og_description":"\u4e00\u3001\u4ee3\u7801\u8fd0\u884c\u73af\u5883 MATLAB2019a\u53ca\u66f4\u65b0\u7248\u672c\u3002 \u4e8c\u3001\u7a0b\u5e8f\u4ecb\u7ecd \u6ce8\uff1a\u56fe\u6807\u4ee3\u8868\u8be5m\u6587\u4ef6\u4e3a\u811a\u672c\u6587\u4ef6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0 […]","og_url":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/","og_site_name":"\u5de5\u5177\u7bb1\u6587\u6863","article_published_time":"2023-11-17T13:50:50+00:00","article_modified_time":"2024-04-07T13:23:27+00:00","og_image":[{"width":531,"height":401,"url":"https:\/\/www.khsci.com\/docs\/wp-content\/uploads\/2023\/11\/image-8.png","type":"image\/png"}],"author":"kuohao","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"kuohao","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#article","isPartOf":{"@id":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/"},"author":{"name":"kuohao","@id":"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5"},"headline":"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801","datePublished":"2023-11-17T13:50:50+00:00","dateModified":"2024-04-07T13:23:27+00:00","mainEntityOfPage":{"@id":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/"},"wordCount":50,"commentCount":0,"publisher":{"@id":"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/","url":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/","name":"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801 - \u5de5\u5177\u7bb1\u6587\u6863","isPartOf":{"@id":"https:\/\/www.khsci.com\/docs\/#website"},"datePublished":"2023-11-17T13:50:50+00:00","dateModified":"2024-04-07T13:23:27+00:00","breadcrumb":{"@id":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.khsci.com\/docs\/index.php\/2023\/11\/17\/stft\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.khsci.com\/docs\/"},{"@type":"ListItem","position":2,"name":"\u77ed\u65f6\u5085\u91cc\u53f6\u53d8\u6362STFT\u753b\u56fe\u4ee3\u7801"}]},{"@type":"WebSite","@id":"https:\/\/www.khsci.com\/docs\/#website","url":"https:\/\/www.khsci.com\/docs\/","name":"\u5de5\u5177\u7bb1\u6587\u6863","description":"khToolbox","publisher":{"@id":"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.khsci.com\/docs\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":["Person","Organization"],"@id":"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/44b1dc94a273203f641349de36ebc0a5","name":"kuohao","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/image\/","url":"https:\/\/khsci.com\/docs\/wp-content\/uploads\/2022\/11\/logo-1.png","contentUrl":"https:\/\/khsci.com\/docs\/wp-content\/uploads\/2022\/11\/logo-1.png","width":255,"height":97,"caption":"kuohao"},"logo":{"@id":"https:\/\/www.khsci.com\/docs\/#\/schema\/person\/image\/"},"url":"https:\/\/www.khsci.com\/docs\/index.php\/author\/kuohao\/"}]}},"_links":{"self":[{"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/posts\/3071"}],"collection":[{"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/comments?post=3071"}],"version-history":[{"count":6,"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/posts\/3071\/revisions"}],"predecessor-version":[{"id":3361,"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/posts\/3071\/revisions\/3361"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/media\/3077"}],"wp:attachment":[{"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/media?parent=3071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/categories?post=3071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.khsci.com\/docs\/index.php\/wp-json\/wp\/v2\/tags?post=3071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}