{"id":10772,"date":"2016-11-30T11:34:09","date_gmt":"2016-11-30T20:34:09","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T15:00:00","slug":"","status":"publish","type":"post","link":"http:\/\/w3devlabs.net\/wp\/?p=10772","title":{"rendered":"[\uc815\ubcf4\ud1b5\uc2e0\uc6a9\uc5b4] \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44"},"content":{"rendered":"

S\/N or SNR (signal-to-noise ratio) – \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44<\/h1>\n<\/p>\n

\uc544\ub0a0\ub85c\uadf8\uc640 \ub514\uc9c0\ud138 \ud1b5\uc2e0\uc5d0\uc11c, \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44, \uc989 S\/N\uc740 \uc2e0\ud638 \ub300 \uc7a1\uc74c\uc758 \uc0c1\ub300\uc801\uc778 \ud06c\uae30\ub97c \uc7ac\ub294 \uac83\uc73c\ub85c\uc11c, \ub300\uac1c \ub370\uc2dc\ubca8\uc774\ub77c\ub294 \ub2e8\uc704\uac00 \uc0ac\uc6a9\ub41c\ub2e4. <\/p>\n

\uc5ec\uae30\uc11c, \ub4e4\uc5b4\uc624\ub294 \uc2e0\ud638\uc758 \uc138\uae30(\ub2e8\uc704\ub294 \ub9c8\uc774\ud06c\ub85c\ubcfc\ud2b8)\ub97c Vs\ub77c \ud558\uace0, \uc7a1\uc74c\uc744 Vn\uc774\ub77c \ud558\uba74(\uc774\uac83\ub3c4 \ub2e8\uc704\ub294 \uc5ed\uc2dc \ub9c8\uc774\ud06c\ub85c\ubcfc\ud2b8), \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44\ub294 \uc544\ub798\uc640 \uac19\uc740 \uacf5\uc2dd\uc73c\ub85c \ud45c\ud604\ub41c\ub2e4. <\/p>\n

S\/N = 20 log10(Vs\/Vn) \uc774\ub54c \ub9cc\uc57d Vs = Vn \uc774\uba74, S\/N = 0 \uc774 \ub41c\ub2e4. <\/p>\n

\uc774 \uacbd\uc6b0\uc5d0\ub294 \uc7a1\uc74c\uc758 \uc218\uc900\uc774 \uc2e0\ud638\uc640 \uc2ec\ud558\uac8c \ub9de\uc11c\uae30 \ub54c\ubb38\uc5d0, \uc2e0\ud638\uacbd\uacc4\ub97c \uc77d\uc744 \uc218 \uc5c6\uac8c \ub41c\ub2e4. <\/p>\n

\ub530\ub77c\uc11c, \ub514\uc9c0\ud138 \ud1b5\uc2e0\uc5d0\uc11c\ub294 \uc774 \uacbd\uc6b0\uc5d0 \uc544\ub9c8\ub3c4 \ub370\uc774\ud130 \uc18d\ub3c4\uc758 \uc800\ud558\uac00 \uc0dd\uae30\uac8c \ub418\ub294\ub370, \uadf8 \uc774\uc720\ub294 \ube48\ubc88\ud55c \uc5d0\ub7ec\ub85c \uc778\ud574 \ub370\uc774\ud130 \ud328\ud0b7 \uc911 \uc77c\ubd80\ub97c \uc7ac\uc804\uc1a1\ud574\uc57c\ud558\uae30 \ub54c\ubb38\uc774\ub2e4. <\/p>\n

\uac00\uc7a5 \uc774\uc0c1\uc801\uc778 \uac83\uc740, Vs\uac00 Vn \ubcf4\ub2e4 \ucee4\uc11c S\/N\uc774 \uc591\uc218\uac00 \ub418\ub294 \uacbd\uc6b0\uc774\ub2e4. <\/p>\n

\ud55c \uc608\ub85c\uc11c, Vs = 10.0\uc774\uace0 Vn = 1.00\uc774\ub77c\uace0 \uac00\uc815\ud558\uba74, S\/N = 20 log10(10.0) = 20.0 dB<\/p>\n","protected":false},"excerpt":{"rendered":"

S\/N or SNR (signal-to-noise ratio) – \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44 \uc544\ub0a0\ub85c\uadf8\uc640 \ub514\uc9c0\ud138 \ud1b5\uc2e0\uc5d0\uc11c, \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44, \uc989 S\/N\uc740 \uc2e0\ud638 \ub300 \uc7a1\uc74c\uc758 \uc0c1\ub300\uc801\uc778 \ud06c\uae30\ub97c \uc7ac\ub294 \uac83\uc73c\ub85c\uc11c, \ub300\uac1c \ub370\uc2dc\ubca8\uc774\ub77c\ub294 \ub2e8\uc704\uac00 \uc0ac\uc6a9\ub41c\ub2e4. \uc5ec\uae30\uc11c, \ub4e4\uc5b4\uc624\ub294 \uc2e0\ud638\uc758 \uc138\uae30(\ub2e8\uc704\ub294 \ub9c8\uc774\ud06c\ub85c\ubcfc\ud2b8)\ub97c Vs\ub77c \ud558\uace0, \uc7a1\uc74c\uc744 Vn\uc774\ub77c \ud558\uba74(\uc774\uac83\ub3c4 \ub2e8\uc704\ub294 \uc5ed\uc2dc \ub9c8\uc774\ud06c\ub85c\ubcfc\ud2b8), \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44\ub294 \uc544\ub798\uc640 \uac19\uc740 \uacf5\uc2dd\uc73c\ub85c \ud45c\ud604\ub41c\ub2e4. S\/N = 20 log10(Vs\/Vn) \uc774\ub54c \ub9cc\uc57d Vs … <\/p>\n

\ub354 \ubcf4\uae30 “[\uc815\ubcf4\ud1b5\uc2e0\uc6a9\uc5b4] \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[5922],"tags":[5921],"class_list":["post-10772","post","type-post","status-publish","format-standard","hentry","category-5922","tag-5921","entry"],"_links":{"self":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/10772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10772"}],"version-history":[{"count":0,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/10772\/revisions"}],"wp:attachment":[{"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10772"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w3devlabs.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}