{"id":962,"date":"2021-12-21T21:06:34","date_gmt":"2021-12-21T13:06:34","guid":{"rendered":"http:\/\/hk.khscience.cn\/docs\/?p=962"},"modified":"2024-04-07T21:45:15","modified_gmt":"2024-04-07T13:45:15","slug":"freana","status":"publish","type":"post","link":"https:\/\/www.khsci.com\/docs\/index.php\/2021\/12\/21\/freana\/","title":{"rendered":"\u9891\u8c31\/\u529f\u7387\u8c31\u5feb\u901f\u753b\u56fe\u7a0b\u5e8f"},"content":{"rendered":"\n
\n

\u9891\u8c31\/\u529f\u7387\u8c31\u5feb\u901f\u753b\u56fe\u7a0b\u5e8f\u7528\u4e8e\u9891\u8c31\u548c\u529f\u7387\u8c31\u7684\u5feb\u901f\u4fbf\u6377\u7684\u8ba1\u7b97<\/strong> \u76ee\u524d\u5df2\u7ecf\u53ef\u4ee5\u5b9e\u73b0\u5feb\u901f\u753b\u56fe\u3001\u53bb\u8d8b\u52bf\u7b49\u529f\u80fd<\/strong> \u4ee3\u7801\u4e0d\u5b9a\u671f\u66f4\u65b0\u4e2d~<\/strong> \u81f4\u529b\u4e8e\u5b9e\u73b0\u4f18\u8d28\u3001\u6613\u7528\u7684\u7a0b\u5e8f\uff0c\u5e2e\u52a9\u7814\u7a76\u4eba\u5458\u5feb\u901f\u5b9e\u73b0\u76ee\u6807<\/strong><\/p>\n<\/blockquote>\n\n\n\n

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

\u5df2\u6d4b\u8bd5MATLAB2019\uff0c\u5176\u4ed6\u7248\u672cMATLAB\u7406\u8bba\u4e0a\u4e5f\u53ef\u4ee5\u4f7f\u7528\u3002<\/p>\n\n\n\n

\u4e8c\u3001\u7a0b\u5e8f\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\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.demoSpecAnalysis.m\u811a\u672c\u6587\u4ef6<\/strong><\/p>\n\n\n\n

\u9891\u8c31\/\u529f\u7387\u8c31\u753b\u56fe\u51fd\u6570pSpecAnalysis\u7684\u6d4b\u8bd5\u6587\u4ef6\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\u3002<\/p>\n\n\n\n

2.pSpecAnalysis.m\u51fd\u6570\u6587\u4ef6<\/strong><\/p>\n\n\n\n

\u5bf9\u6570\u636e\u8fdb\u884c\u53ca\u9891\u8c31\u5206\u6790\uff08\u753b\u9891\u8c31\u6216\u529f\u7387\u8c31\uff09\uff0c\u5b9e\u73b0\u4e00\u884c\u4ee3\u7801\u5b8c\u6210\u9891\u8c31\/\u529f\u7387\u8c31\u753b\u56fe\u3002<\/p>\n\n\n\n

function [p,f] = pSpecAnalysis(data,fs,options)\n\n% \u5bf9\u6570\u636e\u8fdb\u884c\u53ca\u9891\u8c31\u5206\u6790\uff08\u753b\u9891\u8c31\u6216\u529f\u7387\u8c31\uff09\n% \u8f93\u5165\uff1a\n% data\u4e3a\u5f85\u5206\u6790\u4fe1\u53f7\uff0c\u9700\u8981\u662f\u4e00\u7ef4\u5b9e\u6570\n% fs\u4e3a\u91c7\u6837\u9891\u7387\uff0c\u5373\u6bcf\u79d2\u949f\u91c7\u6837\u70b9\u6570\n% options\u4e3a\u53ef\u9009\u9009\u9879\uff0c\u4f7f\u7528\u7ed3\u6784\u4f53\u7684\u65b9\u5f0f\u5bfc\u5165\uff0c\u5b89\u88c5\u81ea\u8eab\u9700\u6c42\u9009\u62e9\u662f\u5426\u8bbe\u7f6e\u3002\u5177\u4f53\u5305\u62ec\uff1a\n%     options.Detrend \uff1a\u53bb\u8d8b\u52bf\uff0c\u8bbe\u7f6eoptions.Detrend = 1\u65f6\uff0c\u5c06\u5728\u505afft\u524d\u53bb\u9664data\u8d8b\u52bf\uff0c\n%                                       \u5f53\u753b\u51fa\u7684\u9891\u8c31\u56fe\u57280\u9891\u7387\u65f6\u51fa\u73b0\u5cf0\u503c\uff0c\u53ef\u5c06\u8be5\u9009\u9879\u7f6e1\uff0c\u53ef\u4ee5\u6709\u6548\u6291\u52360\u9891\u7387\u7684\u5cf0\u503c\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0d\u53bb\u8d8b\u52bf\n%     options.analysisType \uff1a\u9891\u8c31\u5206\u6790\u7c7b\u578b\uff0c\u5f53options.analysisType = \u2018fft\u2019\u65f6\uff0c\u8fdb\u884cFFT\n%                                                                            \u5f53options.analysisType = \u2018psd\u2019\u65f6\uff0c\u8ba1\u7b97\u529f\u7387\u8c31\n%     options.psdUnit \uff1a\u529f\u7387\u8c31\u5355\u4f4d\uff0c\u5f53options.psdUnit = 1\u65f6\uff0c\u5355\u4f4d\u4e3aW\/Hz(\u9ed8\u8ba4)\n%                                                               \u5f53options.psdUnit = 2\u65f6\uff0c\u5355\u4f4d\u4e3a\u5206\u8d1ddB\n%     options.plotType \uff1a\u753b\u56fe\u79cd\u7c7b\u9009\u62e9\uff0c\u5f53options.plotType = 1\u65f6\uff0c\u53ea\u7ed8\u5236\u4fe1\u53f7\u9891\u8c31\u56fe\uff08\u9ed8\u8ba4\uff09\n%                                                                     \u5f53options.plotType = 2\u65f6\uff0c\u7ed8\u5236\u4fe1\u53f7\u65f6\u57df\u56fe\u548c\u9891\u8c31\u56fe\u5728\u540c\u4e00\u5f20\u56fe\u4e0a\uff08\u4e0a\u4e0b\u4e24\u5f20\uff09<\/code><\/pre>\n\n\n\n
3.kSpecAnalysis.m\u51fd\u6570\u6587\u4ef6<\/strong><\/p>\n\n\n\n
\u5bf9\u6570\u636e\u8fdb\u884c\u53ca\u9891\u8c31\u5206\u6790\uff0c\u8ba1\u7b97fft\u6216psd\u6570\u503c\u7ed3\u679c\uff0c\u4e0d\u753b\u56fe\u3002<\/p>\n\n\n\n
function [p,f] = kSpecAnalysis(data,fs,options)\n% \u5bf9\u6570\u636e\u8fdb\u884c\u53ca\u9891\u8c31\u5206\u6790\uff08\u753b\u9891\u8c31\u6216\u529f\u7387\u8c31\uff09\n% \u8f93\u5165\uff1a\n% data\u4e3a\u5f85\u5206\u6790\u4fe1\u53f7\uff0c\u9700\u8981\u662f\u4e00\u7ef4\u5b9e\u6570\n% fs\u4e3a\u91c7\u6837\u9891\u7387\uff0c\u5373\u6bcf\u79d2\u949f\u91c7\u6837\u70b9\u6570\n% options\u4e3a\u53ef\u9009\u9009\u9879\uff0c\u4f7f\u7528\u7ed3\u6784\u4f53\u7684\u65b9\u5f0f\u5bfc\u5165\uff0c\u5b89\u88c5\u81ea\u8eab\u9700\u6c42\u9009\u62e9\u662f\u5426\u8bbe\u7f6e\u3002\u5177\u4f53\u5305\u62ec\uff1a\n%    options.Detrend \uff1a\u53bb\u8d8b\u52bf\uff0c\u8bbe\u7f6eoptions.Detrend = 1\u65f6\uff0c\u5c06\u5728\u505afft\u524d\u53bb\u9664data\u8d8b\u52bf\uff0c\n%                                       \u5f53\u753b\u51fa\u7684\u9891\u8c31\u56fe\u57280\u9891\u7387\u65f6\u51fa\u73b0\u5cf0\u503c\uff0c\u53ef\u5c06\u8be5\u9009\u9879\u7f6e1\uff0c\u53ef\u4ee5\u6709\u6548\u6291\u52360\u9891\u7387\u7684\u5cf0\u503c\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0d\u53bb\u8d8b\u52bf\n%    options.analysisType \uff1a\u9891\u8c31\u5206\u6790\u7c7b\u578b\uff0c\u5f53options.analysisType = \u2018fft\u2019\u65f6\uff0c\u8fdb\u884cFFT\n%                                                                           \u5f53options.analysisType = \u2018psd\u2019\u65f6\uff0c\u8ba1\u7b97\u529f\u7387\u8c31\n%    options.psdUnit      \uff1a\u529f\u7387\u8c31\u5355\u4f4d\uff0c\u5f53options.psdUnit = 1\u65f6\uff0c\u5355\u4f4d\u4e3aW\/Hz(\u9ed8\u8ba4)\n%                                                                  \u5f53options.psdUnit = 2\u65f6\uff0c\u5355\u4f4d\u4e3a\u5206\u8d1ddB % \u8f93\u51fa\uff1a\n% p\uff1a\u9891\u8c31\u5206\u6790\u7684\u5e45\u503c % f\uff1a\u9891\u8c31\u5206\u6790\u7684\u9891\u7387\u8f74<\/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\u884cdemoSpecAnalysis<\/strong>.m<\/strong>\u7a0b\u5e8f\uff0c\u7a0b\u5e8f\u8fd0\u884c\u5b8c\u6bd5\u540e\u5982\u679c\u6ca1\u62a5\u9519\uff0c\u4e14\u753b\u51fa\u9891\u8c31\u56fe\u50cf\uff0c\u5219\u8bf4\u660e\u8fd0\u884c\u73af\u5883\u6b63\u5e38\uff0c\u7a0b\u5e8f\u6b63\u786e\u3002<\/p>\n\n\n\n
2.\u5bfc\u5165\u6570\u636e<\/strong><\/p>\n\n\n\n
\u590d\u5236\u4e00\u4e2ademoSpecAnalysis.m\u7684\u6587\u4ef6\u526f\u672c\uff0c\u5728\u8fd9\u4e2a\u526f\u672c\u91cc\u505a\u5982\u4e0b\u4fee\u6539\uff1a<\/p>\n\n\n\n
\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<\/p>\n\n\n\n
\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
3.\u5b9e\u73b0\u753b\u56fe<\/strong><\/p>\n\n\n\n
\u53c2\u7167demoSpecAnalysis.m\u6587\u4ef6\u4e2d\u7b2c\u4e8c\u6b65\uff0cpSpecAnalysis\u51fd\u6570\u7684\u8c03\u7528\u65b9\u6cd5\uff0c\u6839\u636e\u5b9e\u9645\u91c7\u6837\u9891\u7387\u548c\u753b\u56fe\u9009\u9879\u4fee\u6539\u8bbe\u7f6e\uff0c\u8fd0\u884c\u7a0b\u5e8f\u5373\u53ef\u3002<\/p>\n\n\n\n
\u56db\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
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\u9891\u8c31\/\u529f\u7387\u8c31\u753b\u56fe\u7a0b\u5e8f\uff08\u516c\u5f00\u7248\uff09<\/h3>\n        
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\u6587\u4ef6\u5c3a\u5bf8: 14.28 KB<\/div>\n                    
\u66f4\u65b0: 06-01-2022<\/div>\n        <\/div>\n    <\/div>\n    
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\u4e94\u3001\u83b7\u53d6\u5b8c\u6574\u7248\u7a0b\u5e8f<\/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\u970013\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 13\u5143<\/b> \u624d\u80fd\u67e5\u770b\u6b64\u5904\u5185\u5bb9\uff01\u7acb\u5373\u652f\u4ed8<\/a>\n\t\t\t<\/div><\/p><\/a><\/p>\n\n\n\n
\u516d\u3001\u516c\u5f00\u7248\u4e0e\u5b8c\u6574\u7248\u7a0b\u5e8f\u533a\u522b<\/h4>\n\n\n\n
\u529f\u80fd<\/td>\u5b8c\u6574\u7248<\/td>\u516c\u5f00\u7248<\/td><\/tr>
\u6570\u636e\u5bfc\u5165\u3001\u53c2\u6570\u8bbe\u7f6e\u3001\u5b9e\u73b0\u9891\u8c31\/\u529f\u7387\u8c31\u5feb\u901f\u753b\u56fe<\/td>\u221a<\/td>\u221a<\/td><\/tr>
\u8f6f\u4ef6\u5168\u90e8\u6e90\u7801\uff08\u51fd\u6570m\u6587\u4ef6\uff09<\/td>\u221a<\/td>\u00d7<\/td><\/tr>
\u9891\u8c31\/\u529f\u7387\u8c31\u5206\u6790\u6570\u636e\u957f\u5ea6<\/td>\u65e0\u9650\u5236<\/td>2000\u4e2a\u70b9\u4ee5\u5185<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u4e94\u3001\u91cd\u8981\u66f4\u65b0<\/h4>\n\n\n\n
20230412 \u4fee\u590d\u90e8\u5206bug<\/p>\n\n\n\n
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