{"id":10766,"date":"2025-10-10T12:28:01","date_gmt":"2025-10-10T04:28:01","guid":{"rendered":"https:\/\/www.invbus.com\/blog\/?p=10766"},"modified":"2025-10-10T12:28:06","modified_gmt":"2025-10-10T04:28:06","slug":"%e4%ba%86%e8%a7%a3%e4%ba%a4%e6%98%93%e4%b8%ad%e7%9a%84-snr%ef%bc%9a-snr-%e4%bb%a3%e8%a1%a8%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.invbus.com\/blog\/?p=10766","title":{"rendered":"\u4e86\u89e3\u4ea4\u6613\u4e2d\u7684 SNR\uff1a SNR \u4ee3\u8868\u4ec0\u4e48\uff1f"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shallbd.com\/images\/post\/0d90263963161e78ad4e4dd841412af4_huf545500fc1678a3e83a30cc0042bd089_46189_1110x0_resize_q90_lanczos.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shallbd.com\/images\/post\/0d90263963161e78ad4e4dd841412af4_huf545500fc1678a3e83a30cc0042bd089_46189_1110x0_resize_q90_lanczos.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"post-thumb\"\/><\/div><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"snr-\u5728\u4ea4\u6613\u4e2d\u4ee3\u8868\u4ec0\u4e48\">SNR \u5728\u4ea4\u6613\u4e2d\u4ee3\u8868\u4ec0\u4e48\uff1f<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u5230\u4ea4\u6613\uff0c\u4ea4\u6613\u8005\u9700\u8981\u719f\u6089\u8bb8\u591a\u672f\u8bed\u548c\u7f29\u5199\u8bcd\u3002 \u5176\u4e2d\u4e00\u4e2a\u7f29\u5199\u5c31\u662f SNR\uff0c\u5b83\u4ee3\u8868\u4fe1\u566a\u6bd4\uff08Signal-to-Noise Ratio\uff09\u3002 \u4e86\u89e3\u4fe1\u566a\u6bd4\u5bf9\u4ea4\u6613\u8005\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5e2e\u52a9\u4ed6\u4eec\u8bc4\u4f30\u4ea4\u6613\u4fe1\u53f7\u7684\u5f3a\u5ea6\u5e76\u8fc7\u6ee4\u6389\u4e0d\u5fc5\u8981\u7684\u566a\u97f3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u566a\u6bd4\u6307\u7684\u662f\u4ea4\u6613\u7cfb\u7edf\u4e2d\u7406\u60f3\u4fe1\u53f7\u4e0e\u4e0d\u5fc5\u8981\u566a\u97f3\u7684\u6bd4\u7387\u3002 \u6362\u53e5\u8bdd\u8bf4\uff0c\u5b83\u8861\u91cf\u4ea4\u6613\u4fe1\u53f7\u7684\u6e05\u6670\u5ea6\uff0c\u5e76\u51b3\u5b9a\u5176\u662f\u5426\u53ef\u9760\u3002 \u4fe1\u566a\u6bd4\u9ad8\u8868\u793a\u4fe1\u53f7\u5f3a\u800c\u6e05\u6670\uff0c\u4fe1\u566a\u6bd4\u4f4e\u5219\u8868\u793a\u4fe1\u53f7\u5f31\uff0c\u53ef\u80fd\u88ab\u566a\u97f3\u626d\u66f2\u3002\u76ee\u5f55<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E4%BF%A1%E5%99%AA%E6%AF%94%E5%9C%A8%E4%BA%A4%E6%98%93%E4%B8%AD%E7%9A%84%E9%87%8D%E8%A6%81%E6%80%A7\"><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E5%A6%82%E4%BD%95%E8%AE%A1%E7%AE%97%E4%BF%A1%E5%99%AA%E6%AF%94\"><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E5%88%A9%E7%94%A8%E4%BF%A1%E5%99%AA%E6%AF%94%E5%81%9A%E5%87%BA%E4%BA%A4%E6%98%93%E5%86%B3%E7%AD%96\"><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98\"><\/a>\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E4%BB%80%E4%B9%88%E6%98%AF%E4%BA%A4%E6%98%93%E4%B8%AD%E7%9A%84-snr\"><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E4%B8%BA%E4%BB%80%E4%B9%88-snr-%E5%9C%A8%E4%BA%A4%E6%98%93%E4%B8%AD%E5%BE%88%E9%87%8D%E8%A6%81\"><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E5%9C%A8%E4%BA%A4%E6%98%93%E4%B8%AD%E5%A6%82%E4%BD%95%E8%AE%A1%E7%AE%97%E4%BF%A1%E5%99%AA%E6%AF%94\"><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\/#%E5%93%AA%E4%BA%9B%E5%9B%A0%E7%B4%A0%E4%BC%9A%E5%BD%B1%E5%93%8D%E4%BA%A4%E6%98%93%E4%B8%AD%E7%9A%84%E4%BF%A1%E5%99%AA%E6%AF%94\"><\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u66f4\u597d\u5730\u7406\u89e3\u4ea4\u6613\u4e2d\u7684\u4fe1\u566a\u6bd4\uff0c\u5c31\u5fc5\u987b\u77e5\u9053\u4ec0\u4e48\u662f\u4fe1\u53f7\u548c\u566a\u97f3\u3002 \u4fe1\u53f7\u662f\u6307\u4ea4\u6613\u8005\u8bd5\u56fe\u5728\u5e02\u573a\u4e2d\u8bc6\u522b\u7684\u6709\u610f\u4e49\u7684\u4fe1\u606f\u6216\u6a21\u5f0f\uff0c\u5982\u4e70\u5165\u6216\u5356\u51fa\u4fe1\u53f7\u3002 \u53e6\u4e00\u65b9\u9762\uff0c\u566a\u97f3\u662f\u6307\u53ef\u80fd\u5e72\u6270\u4fe1\u53f7\u7684\u968f\u673a\u6ce2\u52a8\u6216\u65e0\u5173\u4fe1\u606f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ea4\u6613\u8005\u5728\u4ea4\u6613\u7b56\u7565\u4e2d\u4f7f\u7528\u5404\u79cd\u6280\u672f\u548c\u5de5\u5177\u6765\u8ba1\u7b97\u548c\u63d0\u9ad8\u4fe1\u566a\u6bd4\u3002 \u5176\u4e2d\u53ef\u80fd\u5305\u62ec\u6280\u672f\u5206\u6790\u6307\u6807\u3001\u7edf\u8ba1\u6a21\u578b\u6216\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u3002 \u901a\u8fc7\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u4ea4\u6613\u8005\u53ef\u4ee5\u63d0\u9ad8\u4ea4\u6613\u4fe1\u53f7\u7684\u51c6\u786e\u6027\uff0c\u505a\u51fa\u66f4\u660e\u667a\u7684\u4ea4\u6613\u51b3\u7b56\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4fe1\u566a\u6bd4\u5728\u4ea4\u6613\u4e2d\u7684\u91cd\u8981\u6027\">\u4fe1\u566a\u6bd4\u5728\u4ea4\u6613\u4e2d\u7684\u91cd\u8981\u6027<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SNR<\/strong>&nbsp;\u662f\u4fe1\u566a\u6bd4\uff08Signal-to-Noise Ratio\uff09\u7684\u7f29\u5199\uff0c\u662f\u4ea4\u6613\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\u3002 \u7b80\u5355\u6765\u8bf4\uff0cSNR \u53ef\u4ee5\u5b9a\u4e49\u4e3a\u4ea4\u6613\u4fe1\u53f7\u7684\u5f3a\u5ea6\u4e0e\u80cc\u666f\u566a\u58f0\u6c34\u5e73\u7684\u6bd4\u7387\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4ea4\u6613\u4e2d\uff0c\u80fd\u591f\u533a\u5206\u4ea4\u6613\u4fe1\u53f7\u548c\u566a\u97f3\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002 \u4ea4\u6613\u4fe1\u53f7\u662f\u5e02\u573a\u4e2d\u6697\u793a\u6f5c\u5728\u4ea4\u6613\u673a\u4f1a\u7684\u6307\u6807\u6216\u6a21\u5f0f\u3002 \u7136\u800c\uff0c\u5e02\u573a\u4e2d\u4e5f\u5145\u6ee1\u4e86\u566a\u97f3\uff0c\u566a\u97f3\u6307\u7684\u662f\u53ef\u80fd\u5e72\u6270\u4ea4\u6613\u4fe1\u53f7\u7684\u968f\u673a\u6ce2\u52a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u4fe1\u566a\u6bd4\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u80fd\u8ba9\u4ea4\u6613\u8005\u8bc6\u522b\u53ef\u9760\u7684\u4ea4\u6613\u4fe1\u53f7\uff0c\u8fc7\u6ee4\u6389\u566a\u97f3\u3002 \u9ad8\u4fe1\u566a\u6bd4\u8868\u793a\u4ea4\u6613\u4fe1\u53f7\u7684\u5f3a\u5ea6\u660e\u663e\u9ad8\u4e8e\u80cc\u666f\u566a\u58f0\u7684\u6c34\u5e73\u3002 \u8fd9\u610f\u5473\u7740\u4ea4\u6613\u4fe1\u53f7\u66f4\u6709\u53ef\u80fd\u51c6\u786e\u53ef\u9760\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ea4\u6613\u8005\u5728\u4ea4\u6613\u7b56\u7565\u4e2d\u4f7f\u7528\u5404\u79cd\u6280\u672f\u548c\u5de5\u5177\u6765\u63d0\u9ad8\u4fe1\u566a\u6bd4\u3002 \u5176\u4e2d\u5305\u62ec\u4f7f\u7528\u6280\u672f\u6307\u6807\u3001\u5206\u6790\u5e02\u573a\u8d8b\u52bf\u548c\u5e94\u7528\u98ce\u9669\u7ba1\u7406\u6280\u672f\u3002 \u901a\u8fc7\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u4ea4\u6613\u8005\u53ef\u4ee5\u63d0\u9ad8\u4ea4\u6613\u51b3\u7b56\u7684\u51c6\u786e\u6027\uff0c\u589e\u52a0\u4ea4\u6613\u76c8\u5229\u7684\u673a\u4f1a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/shallbd.com\/nova\/\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shallbd.com\/img\/lg\/nova10.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shallbd.com\/img\/lg\/nova10.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e86\u89e3\u548c\u76d1\u63a7\u4fe1\u566a\u6bd4\u5728\u9ad8\u9891\u4ea4\u6613\u4e2d\u5c24\u4e3a\u91cd\u8981\uff0c\u56e0\u4e3a\u4ea4\u6613\u662f\u5728\u51e0\u79d2\u6216\u51e0\u6beb\u79d2\u5185\u6267\u884c\u7684\u3002 \u5728\u8fd9\u79cd\u5feb\u8282\u594f\u7684\u4ea4\u6613\u73af\u5883\u4e2d\uff0c\u4ea4\u6613\u8005\u9700\u8981\u5feb\u901f\u8bc6\u522b\u53ef\u9760\u7684\u4ea4\u6613\u4fe1\u53f7\u5e76\u91c7\u53d6\u884c\u52a8\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u76c8\u5229\u80fd\u529b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u4e4b\uff0c\u4fe1\u566a\u6bd4\u662f\u4ea4\u6613\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u56e0\u4e3a\u5b83\u80fd\u8ba9\u4ea4\u6613\u8005\u533a\u5206\u4ea4\u6613\u4fe1\u53f7\u548c\u566a\u97f3\u3002 \u901a\u8fc7\u63d0\u9ad8\u4fe1\u566a\u6bd4\uff0c\u4ea4\u6613\u8005\u53ef\u4ee5\u63d0\u9ad8\u4ea4\u6613\u51b3\u7b56\u7684\u51c6\u786e\u6027\uff0c\u589e\u52a0\u5728\u5e02\u573a\u4e2d\u53d6\u5f97\u6210\u529f\u7684\u673a\u4f1a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5982\u4f55\u8ba1\u7b97\u4fe1\u566a\u6bd4\">\u5982\u4f55\u8ba1\u7b97\u4fe1\u566a\u6bd4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u566a\u6bd4\uff08SNR\uff09\u662f\u901a\u8fc7\u6bd4\u8f83\u4fe1\u53f7\u5f3a\u5ea6\u548c\u80cc\u666f\u566a\u58f0\u6c34\u5e73\u6765\u8ba1\u7b97\u7684\u3002 \u5b83\u662f\u8861\u91cf\u4fe1\u53f7\u5728\u566a\u58f0\u4e2d\u7684\u7a81\u51fa\u7a0b\u5ea6\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u53e6\u8bf7\u9605\u8bfb:&nbsp;<a href=\"https:\/\/shallbd.com\/zh\/alpari-forex-liao-jie-ru-men-zui-di-cun-kuan-e\/\">Alpari Forex\uff1a \u4e86\u89e3\u5165\u95e8\u6700\u4f4e\u5b58\u6b3e\u989d<\/a><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u8ba1\u7b97\u4fe1\u566a\u6bd4\uff0c\u7b2c\u4e00\u6b65\u662f\u6d4b\u91cf\u4fe1\u53f7\u7684\u529f\u7387\uff0c\u901a\u5e38\u662f\u53d6\u4fe1\u53f7\u632f\u5e45\u7684\u5e73\u65b9\u3002 \u8fd9\u6837\u5c31\u5f97\u5230\u4e86\u4fe1\u53f7\u7684\u529f\u7387\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\uff0c\u6d4b\u91cf\u566a\u58f0\u7684\u529f\u7387\u3002 \u566a\u58f0\u529f\u7387\u53ef\u901a\u8fc7\u6d4b\u91cf\u80cc\u666f\u566a\u58f0\u6ce2\u52a8\u7684\u529f\u7387\u6765\u83b7\u5f97\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\uff0c\u7528\u4fe1\u53f7\u529f\u7387\u9664\u4ee5\u566a\u58f0\u529f\u7387\uff0c\u5373\u53ef\u8ba1\u7b97\u51fa\u4fe1\u566a\u6bd4\u3002 \u4fe1\u566a\u6bd4\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SNR = \u4fe1\u53f7\u529f\u7387\/\u566a\u58f0\u529f\u7387<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u566a\u6bd4\u503c\u8d8a\u9ad8\uff0c\u8868\u793a\u4fe1\u53f7\u8d8a\u5f3a\uff0c\u80cc\u666f\u566a\u58f0\u8d8a\u5c0f\uff0c\u8fd9\u5728\u4ea4\u6613\u4e2d\u662f\u53ef\u53d6\u7684\uff0c\u56e0\u4e3a\u5b83\u80fd\u63d0\u9ad8\u4ea4\u6613\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u53e6\u8bf7\u9605\u8bfb:&nbsp;<a href=\"https:\/\/shallbd.com\/zh\/ru-he-ji-suan-qi-quan-tou-zi-zhe-zong-he-zhi-nan\/\">\u5982\u4f55\u8ba1\u7b97\u671f\u6743\uff1a \u6295\u8d44\u8005\u7efc\u5408\u6307\u5357<\/a><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5229\u7528\u4fe1\u566a\u6bd4\u505a\u51fa\u4ea4\u6613\u51b3\u7b56\">\u5229\u7528\u4fe1\u566a\u6bd4\u505a\u51fa\u4ea4\u6613\u51b3\u7b56<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u566a\u6bd4\uff08SNR\uff09\u662f\u4ea4\u6613\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4ea4\u6613\u8005\u505a\u51fa\u66f4\u660e\u667a\u7684\u51b3\u7b56\u3002 \u901a\u8fc7\u4e86\u89e3\u6240\u9700\u7684\u4ea4\u6613\u4fe1\u53f7\u4e0e\u4e0d\u9700\u8981\u7684\u566a\u97f3\u4e4b\u95f4\u7684\u6bd4\u7387\uff0c\u4ea4\u6613\u8005\u53ef\u4ee5\u8bc4\u4f30\u4ea4\u6613\u673a\u4f1a\u7684\u8d28\u91cf\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4ea4\u6613\u4e2d\u4f7f\u7528\u4fe1\u566a\u6bd4\u65f6\uff0c\u5fc5\u987b\u540c\u65f6\u5206\u6790\u4fe1\u53f7\u548c\u566a\u97f3\u3002 \u4fe1\u53f7\u6307\u7684\u662f\u663e\u793a\u6f5c\u5728\u4ea4\u6613\u673a\u4f1a\u7684\u4fe1\u606f\u6216\u6570\u636e\uff0c\u800c\u566a\u97f3\u6307\u7684\u662f\u53ef\u80fd\u4f1a\u5f71\u54cd\u51b3\u7b56\u8fc7\u7a0b\u7684\u5e72\u6270\u6216\u65e0\u5173\u4fe1\u606f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u8ba1\u7b97\u4fe1\u566a\u6bd4\uff0c\u4ea4\u6613\u8005\u53ef\u4ee5\u786e\u5b9a\u4ea4\u6613\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u6e05\u6670\u5ea6\u3002 \u4fe1\u566a\u6bd4\u8d8a\u9ad8\uff0c\u8868\u660e\u4fe1\u53f7\u8d8a\u5f3a\u3001\u8d8a\u53ef\u9760\uff1b\u4fe1\u566a\u6bd4\u8d8a\u4f4e\uff0c\u8868\u660e\u4fe1\u53f7\u8d8a\u5f31\u3001\u8d8a\u4e0d\u53ef\u9760\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/shallbd.com\/sab\/\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shallbd.com\/img\/lg\/2sab.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shallbd.com\/img\/lg\/2sab.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ea4\u6613\u8005\u53ef\u4ee5\u5229\u7528\u4fe1\u566a\u6bd4\u6765\u9a8c\u8bc1\u6216\u7b5b\u9009\u4ea4\u6613\u673a\u4f1a\u3002 \u9ad8\u4fe1\u566a\u6bd4\u53ef\u4ee5\u5e2e\u52a9\u4ea4\u6613\u8005\u8bc6\u522b\u6210\u529f\u6982\u7387\u8f83\u9ad8\u7684\u5f3a\u4fe1\u53f7\uff0c\u800c\u4f4e\u4fe1\u566a\u6bd4\u5219\u53ef\u80fd\u8868\u660e\u4fe1\u53f7\u592a\u5f31\u6216\u4e0d\u53ef\u9760\uff0c\u65e0\u6cd5\u91c7\u53d6\u884c\u52a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u4fe1\u566a\u6bd4\u8fd8\u53ef\u7528\u4e8e\u8bbe\u7f6e\u98ce\u9669\u7ba1\u7406\u53c2\u6570\u3002 \u901a\u8fc7\u8003\u8651\u4ea4\u6613\u4fe1\u53f7\u7684\u4fe1\u566a\u6bd4\uff0c\u4ea4\u6613\u8005\u53ef\u4ee5\u786e\u5b9a\u4ed6\u4eec\u5bf9\u4fe1\u53f7\u7684\u4fe1\u5fc3\u7a0b\u5ea6\uff0c\u5e76\u76f8\u5e94\u5730\u8c03\u6574\u4ed6\u4eec\u7684\u98ce\u9669\u655e\u53e3\u3002 \u5bf9\u4e8e\u4fe1\u566a\u6bd4\u8f83\u9ad8\u7684\u4fe1\u53f7\uff0c\u4ea4\u6613\u8005\u53ef\u80fd\u4f1a\u66f4\u6709\u4fe1\u5fc3\uff0c\u5e76\u5206\u914d\u8f83\u9ad8\u6bd4\u4f8b\u7684\u4ea4\u6613\u8d44\u91d1\u3002 \u76f8\u53cd\uff0c\u5bf9\u4e8e\u4fe1\u566a\u6bd4\u8f83\u4f4e\u7684\u4fe1\u53f7\uff0c\u4ea4\u6613\u8005\u53ef\u80fd\u4f1a\u9009\u62e9\u5206\u914d\u8f83\u5c0f\u6bd4\u4f8b\u7684\u8d44\u91d1\uff0c\u751a\u81f3\u5b8c\u5168\u907f\u514d\u4ea4\u6613\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u4e4b\uff0c\u4fe1\u566a\u6bd4\u662f\u4ea4\u6613\u8005\u7528\u6765\u8bc4\u4f30\u4ea4\u6613\u4fe1\u53f7\u7684\u8d28\u91cf\u3001\u5f3a\u5ea6\u548c\u53ef\u9760\u6027\u7684\u91cd\u8981\u6307\u6807\u3002 \u901a\u8fc7\u8003\u8651\u4fe1\u566a\u6bd4\uff0c\u4ea4\u6613\u8005\u53ef\u4ee5\u505a\u51fa\u66f4\u660e\u667a\u7684\u51b3\u5b9a\uff0c\u9a8c\u8bc1\u6216\u8fc7\u6ee4\u6389\u4ea4\u6613\u673a\u4f1a\uff0c\u5e76\u76f8\u5e94\u5730\u8c03\u6574\u5176\u98ce\u9669\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5e38\u89c1\u95ee\u9898\">\u5e38\u89c1\u95ee\u9898\uff1a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4ec0\u4e48\u662f\u4ea4\u6613\u4e2d\u7684-snr\">\u4ec0\u4e48\u662f\u4ea4\u6613\u4e2d\u7684 SNR\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SNR \u662f\u4ea4\u6613\u4e2d\u7684\u4fe1\u566a\u6bd4\uff08Signal-to-Noise Ratio\uff09\u7684\u7f29\u5199\u3002 \u5b83\u662f\u901a\u8fc7\u6bd4\u8f83\u4fe1\u53f7\u5f3a\u5ea6\u548c\u80cc\u666f\u566a\u58f0\u6c34\u5e73\u6765\u8bc4\u4f30\u4ea4\u6613\u4fe1\u53f7\u8d28\u91cf\u7684\u4e00\u79cd\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4e3a\u4ec0\u4e48-snr-\u5728\u4ea4\u6613\u4e2d\u5f88\u91cd\u8981\">\u4e3a\u4ec0\u4e48 SNR \u5728\u4ea4\u6613\u4e2d\u5f88\u91cd\u8981\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u566a\u6bd4\u5728\u4ea4\u6613\u4e2d\u5f88\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5e2e\u52a9\u4ea4\u6613\u8005\u786e\u5b9a\u4ea4\u6613\u4fe1\u53f7\u7684\u53ef\u9760\u6027\u3002 \u4fe1\u566a\u6bd4\u8d8a\u9ad8\uff0c\u8868\u793a\u4fe1\u53f7\u8d8a\u5f3a\u3001\u8d8a\u53ef\u9760\uff1b\u4fe1\u566a\u6bd4\u8d8a\u4f4e\uff0c\u8868\u793a\u80cc\u666f\u566a\u58f0\u8d8a\u5927\u3001\u4fe1\u53f7\u8d8a\u4e0d\u53ef\u9760\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u5728\u4ea4\u6613\u4e2d\u5982\u4f55\u8ba1\u7b97\u4fe1\u566a\u6bd4\">\u5728\u4ea4\u6613\u4e2d\u5982\u4f55\u8ba1\u7b97\u4fe1\u566a\u6bd4\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u566a\u6bd4\u662f\u901a\u8fc7\u6bd4\u8f83\u4ea4\u6613\u4fe1\u53f7\u7684\u632f\u5e45\u6216\u5f3a\u5ea6\u4e0e\u80cc\u666f\u566a\u58f0\u7684\u632f\u5e45\u6765\u8ba1\u7b97\u7684\u3002 \u901a\u5e38\u7528\u5206\u8d1d\uff08dB\uff09\u8868\u793a\uff0c\u8ba1\u7b97\u516c\u5f0f\u4e3a SNR = 20log\uff08\u4fe1\u53f7\u632f\u5e45\/\u566a\u58f0\u632f\u5e45\uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u54ea\u4e9b\u56e0\u7d20\u4f1a\u5f71\u54cd\u4ea4\u6613\u4e2d\u7684\u4fe1\u566a\u6bd4\">\u54ea\u4e9b\u56e0\u7d20\u4f1a\u5f71\u54cd\u4ea4\u6613\u4e2d\u7684\u4fe1\u566a\u6bd4\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u51e0\u4e2a\u56e0\u7d20\u4f1a\u5f71\u54cd\u4ea4\u6613\u4e2d\u7684\u4fe1\u566a\u6bd4\u3002 \u8fd9\u4e9b\u56e0\u7d20\u5305\u62ec\u5e02\u573a\u6ce2\u52a8\u6027\u3001\u4ea4\u6613\u7cfb\u7edf\u51c6\u786e\u6027\u3001\u6570\u636e\u8d28\u91cf\u4ee5\u53ca\u4efb\u4f55\u5916\u90e8\u5e72\u6270\u6216\u566a\u97f3\u7684\u5b58\u5728\u3002 \u4ea4\u6613\u8005\u5e94\u4e86\u89e3\u8fd9\u4e9b\u56e0\u7d20\uff0c\u5e76\u5c3d\u91cf\u51cf\u5c11\u566a\u97f3\uff0c\u540c\u65f6\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u4ea4\u6613\u4fe1\u53f7\u7684\u5f3a\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao\">https:\/\/shallbd.com\/zh\/liao-jie-jiao-yi-zhong-de-snr-snr-dai-biao-shi-yao<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SNR \u5728\u4ea4\u6613\u4e2d\u4ee3\u8868\u4ec0\u4e48\uff1f \u8bf4\u5230\u4ea4\u6613\uff0c\u4ea4\u6613\u8005\u9700\u8981\u719f\u6089\u8bb8\u591a\u672f\u8bed\u548c\u7f29\u5199\u8bcd\u3002 \u5176\u4e2d\u4e00\u4e2a\u7f29\u5199\u5c31\u662f SNR\uff0c\u5b83\u4ee3\u8868\u4fe1\u566a\u6bd4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10766","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10766","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10766"}],"version-history":[{"count":0,"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10766\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10766"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10766"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.invbus.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10766"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}