{"id":16069,"date":"2026-03-24T06:37:58","date_gmt":"2026-03-24T06:37:58","guid":{"rendered":"https:\/\/sistc.com\/?p=16069"},"modified":"2026-03-24T06:38:01","modified_gmt":"2026-03-24T06:38:01","slug":"microphone-array-basics-beamforming-snr","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/microphone-array-basics-beamforming-snr\/","title":{"rendered":"\u4ec0\u4e48\u662f\u9ea6\u514b\u98ce\u9635\u5217\uff1f\u6ce2\u675f\u6210\u5f62\u548c\u4fe1\u566a\u6bd4\u589e\u5f3a\u5b9e\u7528\u6307\u5357"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u8bed\u97f3\u4ea4\u4e92\u5df2\u6210\u4e3a\u4eba\u5de5\u667a\u80fd\u8bbe\u5907\u7684\u4e3b\u8981\u754c\u9762\u3001, <strong>\u9ea6\u514b\u98ce\u9635\u5217\u6280\u672f<\/strong> \u5df2\u6210\u4e3a\u51c6\u786e\u3001\u53ef\u9760\u7684\u97f3\u9891\u91c7\u96c6\u7684\u5173\u952e\u63a8\u52a8\u56e0\u7d20\u3002.<\/p><p class=\"wp-block-paragraph\">\u4ece\u667a\u80fd\u5bb6\u5c45\u8bbe\u5907\u5230\u6c7d\u8f66\u8bed\u97f3\u7cfb\u7edf\uff0c\u9ea6\u514b\u98ce\u9635\u5217\u90fd\u80fd\u663e\u8457\u63d0\u9ad8 <strong>\u8bed\u97f3\u6e05\u6670\u5ea6\u3001\u566a\u97f3\u6291\u5236\u548c\u65b9\u5411\u7075\u654f\u5ea6<\/strong>.<\/p><p class=\"wp-block-paragraph\">\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u4ee5\u6e05\u6670\u5b9e\u7528\u7684\u65b9\u5f0f\u5206\u89e3\u9ea6\u514b\u98ce\u9635\u5217\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u800c\u4e0d\u9700\u8981\u590d\u6742\u7684\u6570\u5b66\u77e5\u8bc6\u3002.<\/p><h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f\u9ea6\u514b\u98ce\u9635\u5217\uff1f<\/h2><p class=\"wp-block-paragraph\">\u5fae\u673a\u7535\u7cfb\u7edf <strong>\u9ea6\u514b\u98ce\u9635\u5217<\/strong> \u662f\u4e00\u4e2a\u7531\u591a\u4e2a\u4f20\u58f0\u5668\u5143\u4ef6\u7ec4\u6210\u7684\u7cfb\u7edf\uff0c\u5176\u8f93\u51fa\u7ecf\u8fc7\u5171\u540c\u5904\u7406\u540e\u5b9e\u73b0\uff1a<\/p><ul class=\"wp-block-list\"><li>\u66f4\u9ad8 <strong>\u4fe1\u566a\u6bd4\uff08SNR\uff09<\/strong><\/li>\n\n<li>\u589e\u5f3a\u578b <strong>\u65b9\u5411\u6027<\/strong><\/li>\n\n<li>\u6539\u8fdb <strong>\u8bed\u8a00\u6e05\u6670\u5ea6<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">\u4e0e\u5355\u4e2a\u9ea6\u514b\u98ce\u76f8\u6bd4\uff0c\u9635\u5217\u53ef\u4ee5 \u201c\u805a\u7126 \u201d\u6765\u81ea\u7279\u5b9a\u65b9\u5411\u7684\u58f0\u97f3\uff0c\u540c\u65f6\u6291\u5236\u4e0d\u5fc5\u8981\u7684\u566a\u97f3\u3002.<\/p><p class=\"wp-block-paragraph\">\ud83d\udc49 \u63a2\u7d22 SISTC MEMS \u9ea6\u514b\u98ce\u89e3\u51b3\u65b9\u6848\uff1a<br><a href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">https:\/\/sistc.com\/product-category\/mems-microphone\/<\/a><\/p><h2 class=\"wp-block-heading\">\u4eba\u5de5\u667a\u80fd\u8bed\u97f3\u7cfb\u7edf\u4e2d\u7684\u9ea6\u514b\u98ce\u9635\u5217\u4e3a\u4f55\u91cd\u8981<\/h2><p class=\"wp-block-paragraph\">\u73b0\u4ee3\u4eba\u5de5\u667a\u80fd\u8bbe\u5907\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u4f9d\u8d56\u4e8e <strong>\u8fdc\u573a\u8bed\u97f3\u62fe\u53d6<\/strong>. .\u7136\u800c\uff0c\u73b0\u5b9e\u4e16\u754c\u7684\u73af\u5883\u4f1a\u5e26\u6765\u4ec0\u4e48\u5462\uff1f<\/p><ul class=\"wp-block-list\"><li>\u80cc\u666f\u566a\u97f3<\/li>\n\n<li>\u6df7\u54cd<\/li>\n\n<li>\u591a\u4e2a\u626c\u58f0\u5668<\/li><\/ul><p class=\"wp-block-paragraph\">\u9ea6\u514b\u98ce\u9635\u5217\u901a\u8fc7\u7ec4\u5408\u6765\u89e3\u51b3\u8fd9\u4e9b\u96be\u9898\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>\u7a7a\u95f4\u6ee4\u6ce2\uff08\u6ce2\u675f\u6210\u5f62\uff09<\/strong><\/li>\n\n<li><strong>\u964d\u566a\u7b97\u6cd5<\/strong><\/li>\n\n<li><strong>\u591a\u901a\u9053\u4fe1\u53f7\u5904\u7406<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">\u5728 SISTC\uff0c\u6211\u4eec\u6574\u5408\u4e86 <strong>MEMS \u9ea6\u514b\u98ce + \u4fe1\u53f7\u8c03\u8282 + \u4eba\u5de5\u667a\u80fd\u7b97\u6cd5<\/strong> \u4e3a\u5404\u79cd\u5e94\u7528\u63d0\u4f9b\u4f18\u5316\u7684\u58f0\u5b66\u6027\u80fd\u3002.<\/p><h2 class=\"wp-block-heading\">\u6838\u5fc3\u539f\u7406\uff1a\u6ce2\u5e72\u6d89<\/h2><p class=\"wp-block-paragraph\">\u9ea6\u514b\u98ce\u9635\u5217\u7684\u57fa\u672c\u539f\u7406\u662f <strong>\u6ce2\u5e72\u6270<\/strong>.<\/p><p class=\"wp-block-paragraph\">\u5f53\u58f0\u6ce2\u5230\u8fbe\u4e0d\u540c\u7684\u9ea6\u514b\u98ce\u65f6\uff1a<\/p><ul class=\"wp-block-list\"><li>\u6765\u81ea <strong>\u76ee\u6807\u65b9\u5411<\/strong> \u5bf9\u9f50\u2192 <strong>\u5efa\u8bbe\u6027\u5e72\u6270<\/strong><\/li>\n\n<li>\u6765\u81ea\u5176\u4ed6\u65b9\u5411\u7684\u4fe1\u53f7\u9519\u4f4d\u2192 <strong>\u7834\u574f\u6027\u5e72\u6270<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">\u8fd9\u5c31\u4ea7\u751f\u4e86 <strong>\u5b9a\u5411\u7075\u654f\u5ea6\u6a21\u5f0f<\/strong>, \u5141\u8bb8\u7cfb\u7edf\u6709\u9009\u62e9\u5730 \u201c\u76d1\u542c\u201d\u3002.<\/p><h2 class=\"wp-block-heading\">\u6ce2\u675f\u6210\u5f62\u7684\u5de5\u4f5c\u539f\u7406<\/h2><p class=\"wp-block-paragraph\">\u6ce2\u675f\u6210\u5f62\u662f\u4ee5\u7535\u5b50\u65b9\u5f0f\u8c03\u6574\u9ea6\u514b\u98ce\u7075\u654f\u5ea6\u7684\u8fc7\u7a0b\u3002.<\/p><p class=\"wp-block-paragraph\">\u5b83\u6d89\u53ca<\/p><ul class=\"wp-block-list\"><li>\u65f6\u95f4\u5ef6\u8fdf\u8c03\u6574<\/li>\n\n<li>\u76f8\u4f4d\u5bf9\u9f50<\/li>\n\n<li>\u4fe1\u53f7\u6743\u91cd<\/li><\/ul><p class=\"wp-block-paragraph\">\u7cfb\u7edf\u65e0\u9700\u79fb\u52a8\u9ea6\u514b\u98ce\uff0c\u800c\u662f\u53ef\u4ee5 <strong>\u4ee5\u6570\u5b57\u65b9\u5f0f\u5f15\u5bfc\u6536\u542c\u65b9\u5411<\/strong>.<\/p><p class=\"wp-block-paragraph\">\u8fd9\u5bf9\u4e8e<\/p><ul class=\"wp-block-list\"><li>\u667a\u80fd\u626c\u58f0\u5668<\/li>\n\n<li>\u4f1a\u8bae\u7cfb\u7edf<\/li>\n\n<li>\u6c7d\u8f66\u8bed\u97f3\u52a9\u624b<\/li><\/ul><p class=\"wp-block-paragraph\">\u76f8\u5173\u89e3\u51b3\u65b9\u6848\uff1a<br><a href=\"https:\/\/sistc.com\/zh\/product-category\/sensor-module\/\">https:\/\/sistc.com\/product-category\/sensor-module\/<\/a><\/p><h2 class=\"wp-block-heading\">\u9ea6\u514b\u98ce\u9635\u5217\u7684\u5173\u952e\u6027\u80fd\u6307\u6807<\/h2><p class=\"wp-block-paragraph\">\u4e3a\u4e86\u8bc4\u4f30\u9635\u5217\u6027\u80fd\uff0c\u4f7f\u7528\u4e86\u56db\u4e2a\u5173\u952e\u6307\u6807\uff1a<\/p><h3 class=\"wp-block-heading\">1.\u4fe1\u566a\u6bd4\uff08SNR\uff09\u589e\u76ca<\/h3><p class=\"wp-block-paragraph\">\u9ea6\u514b\u98ce\u9635\u5217\u901a\u8fc7\u8fde\u8d2f\u7ec4\u5408\u4fe1\u53f7\u6765\u63d0\u9ad8\u4fe1\u566a\u6bd4\u3002.<\/p><ul class=\"wp-block-list\"><li>\u4ee5\u5efa\u8bbe\u6027\u7684\u65b9\u5f0f\u53d1\u51fa\u4fe1\u53f7<\/li>\n\n<li>\u968f\u673a\u589e\u52a0\u566a\u97f3<\/li><\/ul><p class=\"wp-block-paragraph\">\u7ed3\u679c <strong>\u66f4\u6e05\u6670\u7684\u8bed\u97f3\u6355\u6349<\/strong><\/p><h3 class=\"wp-block-heading\">2.\u6307\u5411\u6027\uff08DI - \u6307\u5411\u6027\u6307\u6570\uff09<\/h3><p class=\"wp-block-paragraph\">\u6307\u5411\u6027\u8861\u91cf\u9635\u5217\u5bf9\u7279\u5b9a\u65b9\u5411\u7684\u805a\u7126\u7a0b\u5ea6\u3002.<\/p><ul class=\"wp-block-list\"><li>\u66f4\u9ad8\u7684 DI = \u66f4\u597d\u7684\u566a\u58f0\u6291\u5236<\/li>\n\n<li>\u5178\u578b\u9635\u5217\u7684\u6027\u80fd\u660e\u663e\u4f18\u4e8e\u4f20\u7edf\u9ea6\u514b\u98ce<\/li><\/ul><h3 class=\"wp-block-heading\">3.\u9635\u5217\u56e0\u5b50 (AF)<\/h3><p class=\"wp-block-paragraph\">SISTC\u7684 <strong>\u9635\u5217\u56e0\u5b50<\/strong> \u5b9a\u4e49\u9635\u5217\u7684\u5b9a\u5411\u54cd\u5e94\u6a21\u5f0f\u3002.<\/p><p class=\"wp-block-paragraph\">\u5b83\u51b3\u5b9a<\/p><ul class=\"wp-block-list\"><li>\u4e3b\u53f6\uff08\u76ee\u6807\u65b9\u5411\uff09<\/li>\n\n<li>\u4fa7\u53f6\uff08\u4e0d\u9700\u8981\u7684\u654f\u611f\u5ea6\uff09<\/li>\n\n<li>\u5149\u675f\u5bbd\u5ea6<\/li><\/ul><h3 class=\"wp-block-heading\">4.\u9891\u7387\u54cd\u5e94<\/h3><p class=\"wp-block-paragraph\">\u9635\u5217\u5904\u7406\u4f1a\u5f71\u54cd\u9891\u7387\u54cd\u5e94\uff1a<\/p><ul class=\"wp-block-list\"><li>\u53ef\u80fd <strong>\u4f4e\u9891\u6eda\u964d<\/strong><\/li>\n\n<li>\u6f5c\u529b <strong>\u9ad8\u9891\u4f2a\u5f71<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">\u8fd9\u9700\u8981\u7cbe\u5fc3\u7684\u7cfb\u7edf\u7ea7\u8bbe\u8ba1\u3002.<\/p><h2 class=\"wp-block-heading\">\u9ea6\u514b\u98ce\u9635\u5217\u4e0e\u4f20\u7edf\u9ea6\u514b\u98ce<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u70b9<\/th><th>\u5355\u9ea6\u514b\u98ce<\/th><th>\u9ea6\u514b\u98ce\u9635\u5217<\/th><\/tr><\/thead><tbody><tr><td>\u4fe1\u566a\u6bd4<\/td><td>\u6709\u9650<\/td><td>\u9ad8<\/td><\/tr><tr><td>\u65b9\u5411\u6027<\/td><td>\u56fa\u5b9a\u5f0f<\/td><td>\u53ef\u8c03\u8282<\/td><\/tr><tr><td>\u566a\u97f3\u6291\u5236<\/td><td>\u5f31<\/td><td>\u5f3a\u5927<\/td><\/tr><tr><td>\u4eba\u5de5\u667a\u80fd\u96c6\u6210<\/td><td>\u57fa\u672c<\/td><td>\u9ad8\u7ea7<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u8bf4 MEMS \u9ea6\u514b\u98ce\u9635\u5217\u662f\u672a\u6765\u7684\u8d8b\u52bf\uff1f<\/h2><p class=\"wp-block-paragraph\">\u542f\u7528 MEMS \u9ea6\u514b\u98ce\uff1a<\/p><ul class=\"wp-block-list\"><li>\u4f53\u79ef\u5c0f\u5de7<\/li>\n\n<li>\u9ad8\u5ea6\u4e00\u81f4\u6027<\/li>\n\n<li>\u4f4e\u529f\u8017<\/li>\n\n<li>\u53ef\u6269\u5c55\u9635\u5217\u8bbe\u8ba1<\/li><\/ul><p class=\"wp-block-paragraph\">\u5728 SISTC\uff0c\u6211\u4eec\u5c06\u4ee5\u4e0b\u65b9\u9762\u7ed3\u5408\u8d77\u6765\uff1a<\/p><ul class=\"wp-block-list\"><li>\u5148\u8fdb\u7684\u5fae\u673a\u7535\u7cfb\u7edf\u8bbe\u8ba1<\/li>\n\n<li>\u58f0\u5b66\u4f18\u5316<\/li>\n\n<li>\u5d4c\u5165\u5f0f\u4eba\u5de5\u667a\u80fd\u7b97\u6cd5<\/li><\/ul><p class=\"wp-block-paragraph\">\u8f6f\u4ef6\uff0c <strong>\u65b0\u4e00\u4ee3\u667a\u80fd\u97f3\u9891\u89e3\u51b3\u65b9\u6848<\/strong>.<\/p><h2 class=\"wp-block-heading\">\u7ed3\u8bba<\/h2><p class=\"wp-block-paragraph\">\u9ea6\u514b\u98ce\u9635\u5217\u6b63\u5728\u6539\u53d8\u673a\u5668\u7406\u89e3\u58f0\u97f3\u7684\u65b9\u5f0f\u3002.<\/p><p class=\"wp-block-paragraph\">\u901a\u8fc7\u5229\u7528 <strong>\u6ce2\u5e72\u6270\u548c\u6ce2\u675f\u6210\u5f62<\/strong>, \u5b83\u4eec\u4f7f<\/p><ul class=\"wp-block-list\"><li>\u7cbe\u786e\u7684\u8bed\u97f3\u6355\u6349<\/li>\n\n<li>\u5f3a\u5927\u7684\u566a\u97f3\u6291\u5236\u529f\u80fd<\/li>\n\n<li>\u667a\u80fd\u5b9a\u5411\u76d1\u542c<\/li><\/ul><p class=\"wp-block-paragraph\">\u5728\u4e0b\u4e00\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55 <strong>\u53cc\u9ea6\u514b\u98ce\u9635\u5217\u5de5\u4f5c<\/strong>, \u5305\u62ec\u76f8\u4f4d\u5dee\u3001\u5dee\u5206\u9635\u5217\u548c\u5b9e\u9645\u8bbe\u8ba1\u6743\u8861\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u968f\u7740\u8bed\u97f3\u4ea4\u4e92\u6210\u4e3a\u4eba\u5de5\u667a\u80fd\u8bbe\u5907\u7684\u4e3b\u8981\u754c\u9762\uff0c\u9ea6\u514b\u98ce\u9635\u5217\u6280\u672f\u5df2\u6210\u4e3a\u51c6\u786e\u53ef\u9760\u5730\u6355\u6349\u97f3\u9891\u7684\u5173\u952e\u6280\u672f\u3002\u4ece\u667a\u80fd\u5bb6\u5c45\u8bbe\u5907\u5230\u6c7d\u8f66 [...]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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