{"id":13911,"date":"2020-03-11T08:49:42","date_gmt":"2020-03-11T00:49:42","guid":{"rendered":"http:\/\/www.jdcui.com\/?p=13911"},"modified":"2026-02-18T17:39:35","modified_gmt":"2026-02-18T09:39:35","slug":"%e6%95%b0%e5%ad%a6%e8%bd%af%e4%bb%b6-four_tran-simple-example-square-wave-signal-decomposition-four_tran%e5%82%85%e9%87%8c%e5%8f%b6%e5%88%86%e6%9e%90%e5%b7%a5%e5%85%b7%e7%ae%80%e5%8d%95","status":"publish","type":"post","link":"http:\/\/www.jdcui.com\/?p=13911","title":{"rendered":"[\u6570\u5b66][\u8f6f\u4ef6] FOUR_TRAN Example 2:  Square Wave Signal Decomposition [FOUR_TRAN\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u4f7f\u7528\u6848\u4f8b2: \u65b9\u6ce2\u4fe1\u53f7\u5206\u89e3]"},"content":{"rendered":"<p><span style=\"color: #ff00ff; background-color: #ccffcc;\"><strong>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002<\/strong><\/span><\/p>\n<hr \/>\n<p>20200205\u653e\u5047\u671f\u95f4\u505a\u7684\uff0c\u73b0\u5728\u6574\u7406\u51fa\u6765\u3002\u6574\u4e2a\u6691\u5047\uff0c\u56e0\u4e3a\u75ab\u60c5\u90fd\u5f85\u5728\u5bb6\u4e2d\u3002<\/p>\n<p>\u7b80\u5355\u7684\u5085\u91cc\u53f6\u5206\u6790\u4f8b\u5b50\uff0c\u65b9\u6ce2\u4fe1\u53f7\u5206\u89e3\u3002\u7528\u524d\u9762\u81ea\u5df1\u5199\u7684<a href=\"http:\/\/www.jdcui.com\/?p=13874\" target=\"_blank\" rel=\"noopener noreferrer\"><strong> FOUR_TRAN<\/strong><\/a> \u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u8fdb\u884c\u5206\u6790\u3002<\/p>\n<p>\u51c6\u5907\u5982\u4e0b\u7684\u65b9\u6ce2\u4fe1\u53f7\u6570\u636e\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14056\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN00.gif\" alt=\"\" width=\"600\" height=\"401\" \/><\/p>\n<p>\u6253\u5f00<strong><a href=\"http:\/\/www.jdcui.com\/?p=13874\" target=\"_blank\" rel=\"noopener noreferrer\">FOUR_TRAN<\/a>\uff0c<\/strong>\u5bfc\u5165\u65b9\u6ce2\u6570\u636e\uff0c\u8fdb\u884c\u5085\u91cc\u53f6\u5206\u6790\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14057\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN0.gif\" alt=\"\" width=\"600\" height=\"486\" \/><\/p>\n<p>\u5c06\u524d2\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\uff0c\u83b7\u5f97\u4e0b\u56fe\u7c89\u8272\u90e8\u5206\u66f2\u7ebf\u3002\u66f2\u7ebf\u7c7b\u4f3c\u4e00\u4e2asin\u51fd\u6570\uff0c\u4e0e\u65b9\u6ce2\u5dee\u5f02\u8f83\u5927\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14058\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN1.gif\" alt=\"\" width=\"600\" height=\"486\" \/><\/p>\n<p>\u5c06\u524d5\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\uff0c\u83b7\u5f97\u4e0b\u56fe\u7070\u8272\u90e8\u5206\u66f2\u7ebf\uff0c\u66f2\u7ebf\u76f8\u5bf9\u6709\u4e4b\u524d\u591a\uff0c\u4e0e\u65b9\u6ce2\u63a5\u8fd1\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14059\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN2.gif\" alt=\"\" width=\"600\" height=\"486\" \/><\/p>\n<p>\u5c06\u524d20\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\uff0c\u83b7\u5f97\u4e0b\u56fe\u84dd\u8272\u90e8\u5206\u66f2\u7ebf\uff0c\u53d1\u73b0\u66f2\u7ebf\u4ee5\u65b9\u6ce2\u4e3a\u4e2d\u5fc3\u8fdb\u884c\u9707\u8361\uff0c\u5e76\u4e14\u4e0e\u65b9\u6ce2\u5341\u5206\u63a5\u8fd1\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14060\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN3.gif\" alt=\"\" width=\"600\" height=\"486\" \/><\/p>\n<p>\u63a5\u7740\u5c06\u524d50\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14061\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN4.gif\" alt=\"\" width=\"600\" height=\"486\" \/><\/p>\n<p>\u4ee5\u4e0b\u662f\uff0c\u5c06\u524d300\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\u7684\u7ed3\u679c\uff0c\u53ef\u89c1\u66f2\u7ebf\u5728\u79bb\u6563\u70b9\u4e0a\u4e0e\u65b9\u6ce2\u543b\u5408\u4e86\u3002\u65b9\u6ce2\u53ef\u4ee5\u7531\u8fd9\u4e48\u591a\u4e09\u89d2\u51fd\u6570\u7d2f\u52a0\u800c\u6210\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14062\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN5.gif\" alt=\"\" width=\"600\" height=\"486\" \/><\/p>\n<p>\u7ed8\u5236\u6210EXCEL\u56fe\u5f62\u5982\u4e0b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14063\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2020\/02\/FOUR_TRAN6.gif\" alt=\"\" width=\"600\" height=\"501\" \/><\/p>\n<ul style=\"list-style-type: square;\">\n<li><strong>\u5173\u4e8e\u8f6f\u4ef6(<span style=\"color: #000080;\"> About the Program<\/span>)<\/strong><\/li>\n<\/ul>\n<p><strong>\u00a0 [01] <a href=\"http:\/\/www.jdcui.com\/?p=13874\" target=\"_blank\" rel=\"noopener noreferrer\">[\u6570\u5b66][\u5730\u9707\u52a8][\u8f6f\u4ef6] FOUR_TRAN: Fourier Analysis Tool [\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177]<\/a><\/strong><\/p>\n<ul style=\"list-style-type: square;\">\n<li><strong>\u6848\u4f8b (<span style=\"color: #000080;\"> Examples <\/span>)<\/strong><\/li>\n<\/ul>\n<p><strong>[01] <a href=\"http:\/\/www.jdcui.com\/?p=13909\" target=\"_blank\" rel=\"noopener noreferrer\">[\u6570\u5b66][\u8f6f\u4ef6] FOUR_TRAN Example 1: Filtering [FOUR_TRAN\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u4f7f\u7528\u6848\u4f8b1: \u6ee4\u6ce2]<\/a><\/strong><\/p>\n<p><strong>[02] <a href=\"http:\/\/www.jdcui.com\/?p=13911\" target=\"_blank\" rel=\"noopener noreferrer\">[\u6570\u5b66][\u8f6f\u4ef6] FOUR_TRAN Example 2: Square Wave Signal Decomposition [FOUR_TRAN\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u4f7f\u7528\u6848\u4f8b2: \u65b9\u6ce2\u4fe1\u53f7\u5206\u89e3]<\/a><\/strong><\/p>\n<p><strong>[03] <a href=\"http:\/\/www.jdcui.com\/?p=13914\" target=\"_blank\" rel=\"noopener noreferrer\">[\u6570\u5b66][\u8f6f\u4ef6] FOUR_TRAN Example 3: Earthquake Ground Acceleration Frequency Spectrum Analysis [FOUR_TRAN\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u4f7f\u7528\u6848\u4f8b3: \u5730\u9707\u6ce2\u9891\u8c31\u5206\u6790]<\/a><\/strong><\/p>\n<p><strong>[04] <a title=\"[\u632f\u52a8\u53f0][\u8bd5\u9a8c][\u8f6f\u4ef6] \u632f\u52a8\u53f0(Shaking Table Test)\u767d\u566a\u58f0\u8bd5\u9a8c\u6570\u636e\u5904\u7406\u2014\u2014\u6c42\u7ed3\u6784\u81ea\u632f\u7279\u6027\" href=\"http:\/\/www.jdcui.com\/?p=15689\" target=\"_blank\" rel=\"noopener noreferrer\">[\u632f\u52a8\u53f0][\u8bd5\u9a8c][\u8f6f\u4ef6] \u632f\u52a8\u53f0(Shaking Table Test)\u767d\u566a\u58f0\u8bd5\u9a8c\u6570\u636e\u5904\u7406\u2014\u2014\u6c42\u7ed3\u6784\u81ea\u632f\u7279\u6027<\/a><\/strong><\/p>\n<p><center><strong><div  class=\"thumbs-rating-container\" id=\"thumbs-rating-13911\" data-content-id=\"13911\"><button class=\"thumbs-rating-up thumbs-rating-voted\" onclick=\"thumbs_rating_vote(13911, 1);\">Vote Up +5<\/button> <button class=\"thumbs-rating-down thumbs-rating-voted\" onclick=\"thumbs_rating_vote(13911, 2);\">Vote Down -1<\/button><span class=\"thumbs-rating-already-voted\">You already voted!<\/span><\/div><\/strong><\/center><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"text-align: left;\"><strong>\u5fae\u4fe1\u516c\u4f17\u53f7\u00a0(<span style=\"color: #000080;\">\u00a0Wechat\u00a0Subscription<\/span>)<\/strong><\/li>\n<\/ul>\n<p><a href=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3636\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\" alt=\"WeChat_QRCode\" width=\"250\" height=\"255\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><strong>\u6b22\u8fce\u5173\u6ce8\u00a0\u201c<span style=\"color: #ff00ff;\">\u7ed3\u6784\u4e4b\u65c5<\/span>\u201d\u00a0\u5fae\u4fe1\u516c\u4f17\u53f7<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002 20200205\u653e\u5047\u671f\u95f4\u505a\u7684\uff0c\u73b0\u5728\u6574\u7406\u51fa\u6765\u3002\u6574\u4e2a\u6691\u5047\uff0c\u56e0\u4e3a\u75ab\u60c5\u90fd\u5f85\u5728\u5bb6\u4e2d\u3002 \u7b80\u5355\u7684\u5085\u91cc\u53f6\u5206\u6790\u4f8b\u5b50\uff0c\u65b9\u6ce2\u4fe1\u53f7\u5206\u89e3\u3002\u7528\u524d\u9762\u81ea\u5df1\u5199\u7684 FOUR_TRAN \u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u8fdb\u884c\u5206\u6790\u3002 \u51c6\u5907\u5982\u4e0b\u7684\u65b9\u6ce2\u4fe1\u53f7\u6570\u636e\u3002 \u6253\u5f00FOUR_TRAN\uff0c\u5bfc\u5165\u65b9\u6ce2\u6570\u636e\uff0c\u8fdb\u884c\u5085\u91cc\u53f6\u5206\u6790\u3002 \u5c06\u524d2\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\uff0c\u83b7\u5f97\u4e0b\u56fe\u7c89\u8272\u90e8\u5206\u66f2\u7ebf\u3002\u66f2\u7ebf\u7c7b\u4f3c\u4e00\u4e2asin\u51fd\u6570\uff0c\u4e0e\u65b9\u6ce2\u5dee\u5f02\u8f83\u5927\u3002 \u5c06\u524d5\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\uff0c\u83b7\u5f97\u4e0b\u56fe\u7070\u8272\u90e8\u5206\u66f2\u7ebf\uff0c\u66f2\u7ebf\u76f8\u5bf9\u6709\u4e4b\u524d\u591a\uff0c\u4e0e\u65b9\u6ce2\u63a5\u8fd1\u4e86\u3002 \u5c06\u524d20\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\uff0c\u83b7\u5f97\u4e0b\u56fe\u84dd\u8272\u90e8\u5206\u66f2\u7ebf\uff0c\u53d1\u73b0\u66f2\u7ebf\u4ee5\u65b9\u6ce2\u4e3a\u4e2d\u5fc3\u8fdb\u884c\u9707\u8361\uff0c\u5e76\u4e14\u4e0e\u65b9\u6ce2\u5341\u5206\u63a5\u8fd1\u4e86\u3002 \u63a5\u7740\u5c06\u524d50\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\u3002 \u4ee5\u4e0b\u662f\uff0c\u5c06\u524d300\u9636\u9891\u7387\u7684\u6570\u636e\u7d2f\u52a0\u7684\u7ed3\u679c\uff0c\u53ef\u89c1\u66f2\u7ebf\u5728\u79bb\u6563\u70b9\u4e0a\u4e0e\u65b9\u6ce2\u543b\u5408\u4e86\u3002\u65b9\u6ce2\u53ef\u4ee5\u7531\u8fd9\u4e48\u591a\u4e09\u89d2\u51fd\u6570\u7d2f\u52a0\u800c\u6210\u3002 \u7ed8\u5236\u6210EXCEL\u56fe\u5f62\u5982\u4e0b\u3002 \u5173\u4e8e\u8f6f\u4ef6( About the Program) \u00a0 [01] [\u6570\u5b66][\u5730\u9707\u52a8][\u8f6f\u4ef6] FOUR_TRAN: Fourier Analysis Tool [\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177] \u6848\u4f8b ( Examples ) [01] &#8230;<\/p>\n","protected":false},"author":1,"featured_media":14063,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,31],"tags":[2260,2256,2269,2258,2276,2275,1951,2273,2274],"class_list":["post-13911","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-math-geometry","category-my-software-","tag-dft","tag-four_tran","tag-fourier","tag-fourier-transform","tag-signal","tag-square-wave","tag-1951","tag-2273","tag-2274"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"CJD\"\/>\n\t<meta name=\"keywords\" content=\"dft,four_tran,fourier,fourier transform,signal,square wave,\u5085\u91cc\u53f6\u53d8\u6362,\u65b9\u6ce2,\u65b9\u6ce2\u4fe1\u53f7\" \/>\n\t<link rel=\"canonical\" href=\"http:\/\/www.jdcui.com\/?p=13911\" \/>\n\t<meta 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09:18:52","updated":"2026-02-18 09:51:14","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"http:\/\/www.jdcui.com\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"http:\/\/www.jdcui.com\/?cat=4\" title=\"Math &amp; Geometry [\u6570\u5b66\u4e0e\u51e0\u4f55]\">Math &amp; Geometry [\u6570\u5b66\u4e0e\u51e0\u4f55]<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t[\u6570\u5b66][\u8f6f\u4ef6] FOUR_TRAN Example 2:  Square Wave Signal Decomposition [FOUR_TRAN\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u4f7f\u7528\u6848\u4f8b2: \u65b9\u6ce2\u4fe1\u53f7\u5206\u89e3]\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"http:\/\/www.jdcui.com"},{"label":"Math &amp; Geometry 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