{"id":581,"date":"2021-10-30T23:08:36","date_gmt":"2021-10-30T15:08:36","guid":{"rendered":"http:\/\/hk.khscience.cn\/docs\/?p=581"},"modified":"2024-10-26T20:46:26","modified_gmt":"2024-10-26T12:46:26","slug":"genfea","status":"publish","type":"post","link":"https:\/\/www.khsci.com\/docs\/index.php\/2021\/10\/30\/genfea\/","title":{"rendered":"\u7279\u5f81\u63d0\u53d6\uff08\u65f6\u57df\u3001\u9891\u57df\u6307\u6807\uff09"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote\">\n<p><\/p>\n<\/blockquote>\n\n\n         <style>\r\n             #player69fa2c8fa8112.h5vp_player { widthborder-radius overflow: hidden; }        <\/style>\r\n        <div id=\"h5vp_player\">\r\n            <div id=\"player69fa2c8fa8112\" class=\"h5vp_player h5vp_player_initializer\" data-settings=\"{&quot;options&quot;:{&quot;controls&quot;:[&quot;play-large&quot;,&quot;rewind&quot;,&quot;play&quot;,&quot;fast-forward&quot;,&quot;progress&quot;,&quot;current-time&quot;,&quot;mute&quot;,&quot;volume&quot;,&quot;settings&quot;,&quot;fullscreen&quot;],&quot;loop&quot;:{&quot;active&quot;:false},&quot;muted&quot;:false,&quot;hideControls&quot;:true,&quot;autoplay&quot;:false,&quot;tooltips&quot;:{&quot;controls&quot;:true,&quot;seek&quot;:true},&quot;resetOnEnd&quot;:true,&quot;captions&quot;:{&quot;active&quot;:true,&quot;update&quot;:true}},&quot;infos&quot;:{&quot;source&quot;:&quot;https:\\\/\\\/khscience.vip:555\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/\\u65f6\\u9891\\u57df\\u71b5_x264.mp4&quot;,&quot;poster&quot;:false,&quot;id&quot;:0}}\">\r\n                <video controls playsinline poster=\"\"  >\r\n                    <source src=\"https:\/\/khscience.vip:555\/wp-content\/uploads\/2023\/08\/\u65f6\u9891\u57df\u71b5_x264.mp4\" type=\"video\/mp4\">\r\n                    Your browser does not support the video tag.\r\n                <\/video>\r\n            <\/div>\r\n        <\/div>\r\n        \n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-1 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 has-custom-font-size is-style-outline has-small-font-size\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.bilibili.com\/video\/BV1Ff1xYbEJP\/?vd_source=5e65959f8a047340cb194f5cc1d54eb4\" target=\"_blank\" rel=\"noreferrer noopener\">\u89c6\u9891\u5907\u7528\u5730\u5740<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"is-style-default\"><strong>\u4e00\u3001\u4ee3\u7801\u8fd0\u884c\u73af\u5883<\/strong><\/p>\n\n\n\n<p class=\"is-style-iw-2em\"> <span lang=\"EN-US\">MATLAB2019a<\/span>\u53ca\u66f4\u65b0\u7248\u672c\u3002<\/p>\n\n\n\n<p class=\"is-style-iw-2em\"><strong>\u4e8c\u3001\u7a0b\u5e8f\u4ecb\u7ecd<\/strong><\/p>\n\n\n<div class=\"wp-block-image size-full\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"179\" height=\"37\" src=\"https:\/\/khsci.com\/docs\/wp-content\/uploads\/2022\/05\/image-3.png\" alt=\"\" class=\"wp-image-1756\" style=\"width:284px;height:59px\"\/><\/figure><\/div>\n\n\n<p class=\"is-style-iw-2em\"><span style=\"font-family: \u6977\u4f53;\">\u6ce8\uff1a<img decoding=\"async\" src=\"https:\/\/khsci.com\/docs\/wp-content\/uploads\/2020\/04\/d2f64ad140f71d4582ec56dfb0893b44.png\">\u56fe\u6807\u4ee3\u8868\u8be5m\u6587\u4ef6\u4e3a\u811a\u672c\u6587\u4ef6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\uff1b<img decoding=\"async\" src=\"https:\/\/khsci.com\/docs\/wp-content\/uploads\/2020\/04\/5823613e4f686c23a078445e25e3e8eb.png\">\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<a rel=\"nofollow noopener noreferrer\" href=\"https:\/\/ww2.mathworks.cn\/help\/matlab\/learn_matlab\/scripts-and-functions.html\" target=\"_blank\">\u8fd9\u91cc<\/a>\u3002<\/span><\/p>\n\n\n\n<p class=\"is-style-iw-2em\"> <span style=\"color: #ff6600;\"><strong>1.testGenFeaTF.m\u6587\u4ef6<\/strong><\/span><\/p>\n\n\n\n<p class=\"is-style-iw-2em\">\u7279\u5f81\u63d0\u53d6\u51fd\u6570genFeatureTF\u7684\u6d4b\u8bd5\u6587\u4ef6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\u3002\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6210\u540e\uff0c\u5728MATLAB\u7684\u5de5\u4f5c\u533a\uff0c\u53cc\u51fbfea\u53d8\u91cf\uff0c\u53ef\u4ee5\u67e5\u770b\u6c42\u5f97\u7684\u5177\u4f53\u6570\u503c\u3002<\/p>\n\n\n\n<p class=\"is-style-iw-2em\"><span style=\"color: #ff6600;\"><strong>2.genFeatureTF.m\u6587\u4ef6<\/strong><\/span><\/p>\n\n\n\n<p class=\"is-style-iw-2em\">\u65f6\u9891\u57df\u4fe1\u53f7\u7279\u5f81\u63d0\u53d6\u51fd\u6570\u300223\u79cd\u5168\u90fd\u96c6\u4e2d\u5230\u4e00\u4e2a\u5c01\u88c5\u51fd\u6570\u91cc\uff0c\u53ea\u9700\u8981\u8f93\u5165\u5f85\u63d0\u53d6\u6570\u636e\u3001\u91c7\u6837\u9891\u7387\u548c\u7279\u5f81\u7c7b\u578b\uff0c\u5b9e\u73b0\u4e00\u884c\u4ee3\u7801\u5b8c\u6210\u7279\u5f81\u63d0\u53d6\u3002<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-matlab\">function fea = genFeatureTF(data,fs,featureNamesCell)                                           \n% \u65f6\u57df\u3001\u9891\u57df\u76f8\u5173\u7b97\u6cd5\u7684\u4fe1\u53f7\u7279\u5f81\u63d0\u53d6\u51fd\u6570\n% \u8f93\u5165\uff1a\n% data\uff1a\u5f85\u7279\u5f81\u63d0\u53d6\u7684\u65f6\u57df\u4fe1\u53f7\uff0c\u53ef\u4ee5\u662f\u4e8c\u7ef4\u6570\u636e\uff0c\u7ef4\u5ea6\u4e3am*n\uff0c\u5176\u4e2dm\u4e3a\u6570\u636e\u7ec4\u6570\uff0cn\u4e3a\u6bcf\u7ec4\u6570\u636e\u7684\u957f\u5ea6\u3002\u5373\u6bcf\u884c\u6570\u636e\u4e3a\u4e00\u7ec4\u3002\u884c\u5217\u65b9\u5411\u4e0d\u53ef\u51fa\u9519\n% fs\uff1a\u91c7\u6837\u9891\u7387\uff0c\u5982\u679c\u4e0d\u63d0\u53d6\u9891\u57df\u7279\u5f81\uff0cfs\u503c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a1\n% featureNamesCell\uff1a\u62df\u8fdb\u884c\u7279\u5f81\u63d0\u53d6\u7684\u7279\u5f81\u540d\u79f0\uff0c\u8be5\u53d8\u91cf\u4e3acell\u7c7b\u578b\uff0c\u5176\u4e2d\u5305\u542b\u7684\u7279\u5f81\u540d\u79f0\u4e3a\u5b57\u7b26\u4e32\uff0c\u7279\u5f81\u540d\u79f0\u9700\u8981\u5728\u4e0b\u8fb9\u5217\u8868\u4e2d\uff1a\n% \u76ee\u524d\u652f\u6301\u7684\u7279\u5f81\uff082022.5.23\uff0c\u517123\u79cd\uff09\uff1a\n% max \uff1a\u6700\u5927\u503c\n% min \uff1a\u6700\u5c0f\u503c\n% mean \uff1a\u5e73\u5747\u503c\n% peak \uff1a\u5cf0\u5cf0\u503c\n% arv  \uff1a\u6574\u6d41\u5e73\u5747\u503c\n% var  \uff1a\u65b9\u5dee\n% std  \uff1a\u6807\u51c6\u5dee\n% kurtosis  \uff1a\u5ced\u5ea6\n% skewness  \uff1a\u504f\u5ea6\n% rms       \uff1a\u5747\u65b9\u6839\n% waveformF \uff1a\u6ce2\u5f62\u56e0\u5b50\n% peakF     \uff1a\u5cf0\u503c\u56e0\u5b50\n% impulseF  \uff1a\u8109\u51b2\u56e0\u5b50\n% clearanceF\uff1a\u88d5\u5ea6\u56e0\u5b50\n% FC\uff1a\u91cd\u5fc3\u9891\u7387\n% MSF\uff1a\u5747\u65b9\u9891\u7387\n% RMSF\uff1a\u5747\u65b9\u6839\u9891\u7387\n% VF\uff1a\u9891\u7387\u65b9\u5dee\n% RVF\uff1a\u9891\u7387\u6807\u51c6\u5dee\n% SKMean\uff1a\u8c31\u5ced\u5ea6\u7684\u5747\u503c\n% SKStd\uff1a\u8c31\u5ced\u5ea6\u7684\u6807\u51c6\u5dee\n% SKSkewness\uff1a\u8c31\u5ced\u5ea6\u7684\u504f\u5ea6\n% SKKurtosis\uff1a\u8c31\u5ced\u5ea6\u7684\u5ced\u5ea6\n% \n% \u8f93\u51fa\uff1a\n% fea\uff1a\u6570\u636edata\u7684\u7279\u5f81\u503c\u6570\u7ec4\uff0c\u5176\u7279\u5f81\u503c\u987a\u5e8f\u4e0efeatureNamesCell\u4e00\u4e00\u5bf9\u5e94<\/code><\/pre>\n\n\n\n<p class=\"is-style-iw-2em\"><span style=\"color: #ff6600;\"><strong>3.testGenFeaTF2D.m\u6587\u4ef6\uff08\u5b8c\u6574\u7248\u72ec\u6709\uff09<\/strong><\/span><\/p>\n\n\n\n<p class=\"is-style-iw-2em\">\u4e8c\u7ef4\u6570\u636e\u7279\u5f81\u63d0\u53d6\u7684\u6d4b\u8bd5\u6587\u4ef6\uff0c\u5b8c\u6574\u7248\u4ee3\u7801\u4e2d\u652f\u6301\u5bf9\u4e8c\u7ef4\u6570\u636e\uff08\u7ef4\u5ea6\u4e3am*n\uff0c\u5176\u4e2dm\u4e3a\u6570\u636e\u7ec4\u6570\uff0cn\u4e3a\u6bcf\u7ec4\u6570\u636e\u7684\u957f\u5ea6\u3002\u5373\u6bcf\u884c\u6570\u636e\u4e3a\u4e00\u7ec4\uff09\u8fdb\u884c\u7279\u5f81\u63d0\u53d6\u8ba1\u7b97\u3002\u8ba1\u7b97\u7ed3\u679c\u4e2d\u6bcf\u4e00\u884c\u5bf9\u5e94\u4e00\u7ec4\u6570\u636e\u7684\u7279\u5f81\u7ed3\u679c\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u56db\u3001\u5feb\u901f\u5f00\u59cb\">\u4e09\u3001\u5feb\u901f\u5f00\u59cb<\/h4>\n\n\n\n<p class=\"is-style-iw-2em\"><strong>1.\u8fd0\u884c\u6d4b\u8bd5\u811a\u672c<\/strong><\/p>\n\n\n\n<p class=\"is-style-iw-2em\"><span style=\"color: #ff6600;\"><span style=\"color: #000000;\">\u5148\u5728MATLAB\u91cc\u6253\u5f00\u4e0b\u8f7d\u597d\u7684\u6587\u4ef6\u5939\uff0c\u7136\u540e\u8fd0\u884c<\/span><strong>testGenFeaTF.m<\/strong><span style=\"color: #000000;\">\u7a0b\u5e8f\uff0c\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6bd5\u540e\u5982\u679c\u6ca1\u62a5\u9519\uff0c\u4e14\u5de5\u4f5c\u533a\u6210\u529f\u5f97\u5230fea\u53d8\u91cf\uff0c\u5219\u8bf4\u660e\u8fd0\u884c\u73af\u5883\u6b63\u5e38\uff0c\u7a0b\u5e8f\u6b63\u786e\u3002<\/span><\/span><\/p>\n\n\n\n<p class=\"is-style-iw-2em\"><strong>2.<span style=\"font-family: \u9ed1\u4f53;\">\u5bfc\u5165\u6570\u636e<\/span><\/strong><\/p>\n\n\n\n<p class=\"is-style-iw-2em\">\u590d\u5236\u4e00\u4e2a<span style=\"color: #ff6600;\">testGenFeaTF.m<\/span>\u7684\u6587\u4ef6\u526f\u672c\uff0c\u5728\u8fd9\u4e2a\u526f\u672c\u91cc\u505a\u5982\u4e0b\u4fee\u6539\uff1a<\/p>\n\n\n\n<p class=\"is-style-iw-2em\">\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<a href=\"https:\/\/khsci.com\/docs\/index.php\/2020\/05\/17\/loaddata\/\">\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<a href=\"https:\/\/ww2.mathworks.cn\/help\/matlab\/standard-file-formats.html\">\u8fd9\u4e2a\u6587\u6863<\/a>\u3002<\/p>\n\n\n\n<p class=\"is-style-iw-2em\">\u5982\u679c\u4f60\u5df2\u7ecf\u5b9e\u73b0\u4e86\u6570\u636e\u5bfc\u5165\uff0c\u8fd9\u65f6\u5019\u5e94\u8be5\u62e5\u6709\u4e86\u4e00\u4e2a\u4e00\u7ef4\u6570\u636e\u53d8\u91cf\uff0c\u8fd9\u65f6\u5019\u5c31\u53ef\u4ee5\u8c03\u7528\u51fd\u6570\u8fdb\u884c\u7279\u5f81\u63d0\u53d6\u4e86\u3002<\/p>\n\n\n\n<p class=\"is-style-iw-2em\"><strong>3.\u5b9e\u73b0\u7279\u5f81\u63d0\u53d6<\/strong><\/p>\n\n\n\n<p class=\"is-style-iw-2em\">\u53c2\u7167<span style=\"color: #ff6600;\">testGenFeaTF.m<\/span>\u6587\u4ef6<span style=\"color: #000000;\">\u4e2d\u7b2c\u4e8c\u6b65\uff0cgenFeatureTF\u51fd\u6570\u7684\u8c03\u7528\u65b9\u6cd5\uff0c\u6839\u636e\u5b9e\u9645\u91c7\u6837\u9891\u7387\u548c\u7279\u5f81\u63d0\u53d6\u7c7b\u578b\u8fdb\u884c\u4fee\u6539\u8bbe\u7f6e\uff0c\u8fd0\u884c\u7a0b\u5e8f\u5373\u53ef\u3002<\/span><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u4e94\u3001\u83b7\u53d6\u7a0b\u5e8f\uff08\u9700\u4f7f\u7528\u7535\u8111\u6d4f\u89c8\u5668\u6253\u5f00\uff09\">\u56db\u3001\u5173\u4e8e\u5b8c\u6574\u7248\u4e0e\u516c\u5f00\u7248\u4ee3\u7801<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u529f\u80fd<\/td><td>\u5b8c\u6574\u7248<\/td><td>\u516c\u5f00\u7248<\/td><\/tr><tr><td>\u6570\u636e\u5bfc\u5165\u3001\u53c2\u6570\u8bbe\u7f6e\u3001\u5b9e\u73b0\u7279\u5f81\u63d0\u53d6<\/td><td>\u221a<\/td><td>\u221a<\/td><\/tr><tr><td>\u8f6f\u4ef6\u5168\u90e8\u6e90\u7801\uff08\u51fd\u6570m\u6587\u4ef6\uff09<\/td><td>\u221a<\/td><td>\u00d7<\/td><\/tr><tr><td>\u7279\u5f81\u63d0\u53d6\u6570\u636e\u957f\u5ea6<\/td><td>\u65e0\u9650\u5236<\/td><td>200\u4e2a\u70b9\u4ee5\u5185<\/td><\/tr><tr><td>\u4e8c\u7ef4\u6570\u636e\u7279\u5f81\u63d0\u53d6\uff08\u6bcf\u4e00\u884c\u4e3a\u4e00\u7ec4\u6570\u636e\uff0c\u540c\u65f6\u5206\u522b\u5bf9\u6bcf\u7ec4\u6570\u636e\u8fdb\u884c\u7279\u5f81\u63d0\u53d6\u8ba1\u7b97\uff09<\/td><td>\u221a<\/td><td>\u00d7<\/td><\/tr><tr><td>\u652f\u6301\u7684\u7279\u5f81\u6570\u91cf<\/td><td>23\u79cd<\/td><td>26\u79cd<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" 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