{"id":148414,"date":"2024-04-27T16:24:39","date_gmt":"2024-04-27T16:24:39","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%a7%84%ed%8f%ad-%eb%b3%80%ec%a1%b0-%ed%9a%8c%eb%a1%9c\/"},"modified":"2024-04-27T16:24:48","modified_gmt":"2024-04-27T16:24:48","slug":"%ec%a7%84%ed%8f%ad-%eb%b3%80%ec%a1%b0-%ed%9a%8c%eb%a1%9c","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%a7%84%ed%8f%ad-%eb%b3%80%ec%a1%b0-%ed%9a%8c%eb%a1%9c\/","title":{"rendered":"\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c"},"content":{"rendered":"<p class=\"sidekick\">\uc548\ub0b4\ud558\ub294 \uae30\uc0ac\ub85c \uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\uc758 \uc791\ub3d9 \uc6d0\ub9ac\ub97c \ubc30\uc6b0\uace0 \ub77c\ub514\uc624 \ubc29\uc1a1 \ubc0f \uc804\uc790\uacf5\ud559\uc5d0\uc11c\uc758 \uadf8 \uc5ed\ud560\uacfc \uc751\uc6a9\uc744 \uc774\ud574\ud558\uc138\uc694.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\uc9c4\ud3ed-\ubcc0\uc870-\ud68c\ub85c.png\" alt=\"\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\"\/><\/p>\n<h2>\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c \uae30\ucd08<\/h2>\n<p>\uc9c4\ud3ed \ubcc0\uc870(AM)\ub294 \ub77c\ub514\uc624 \ubc29\uc1a1\uae30\uc220 \ub4f1\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ubcc0\uc870 \ubc29\uc2dd \uc911 \ud558\ub098\ub85c, \uc804\ub2ec\ud558\uace0\uc790 \ud558\ub294 \uc2e0\ud638\uc758 \uc138\uae30\ub97c \ubcc0\ud654\uc2dc\ucf1c \uc815\ubcf4\ub97c \uc804\ub2ec\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\ub294 \uc774\ub7ec\ud55c \uc9c4\ud3ed \ubcc0\uc870\ub97c \uac00\ub2a5\ud558\uac8c \ud558\ub294 \uc804\uc790\ud68c\ub85c\ub85c, \uc1a1\uc2e0\uae30\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc9c4\ud3ed \ubcc0\uc870\uc758 \uc6d0\ub9ac<\/h2>\n<p>\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\uc758 \uae30\ubcf8\uc801\uc778 \uc6d0\ub9ac\ub294 \uc1a1\uc2e0\ud558\uace0\uc790 \ud558\ub294 \uc2e0\ud638(\uc815\ubcf4\ub97c \ub2f4\uace0 \uc788\ub294 \uc2e0\ud638, \uc989 \ubcc0\uc870 \uc2e0\ud638)\ub97c \uce90\ub9ac\uc5b4(carrier) \uc2e0\ud638\uc5d0 \ud0d1\uc7ac\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uce90\ub9ac\uc5b4 \uc2e0\ud638\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uace0\uc815\ub41c \uc8fc\ud30c\uc218\ub97c \uac16\ub294 \uc815\ud604\ud30c(sinusoidal wave)\uc785\ub2c8\ub2e4. \ubcc0\uc870 \uc2e0\ud638\uac00 \uce90\ub9ac\uc5b4 \uc2e0\ud638\uc758 \uc9c4\ud3ed\uc744 \ubcc0\ud654\uc2dc\ud0a4\uba70, \uc774\ub807\uac8c \ubcc0\uc870\ub41c \uc2e0\ud638\ub294 \uacf5\uc911\uc5d0 \ubc29\uc1a1\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc9c4\ud3ed \ubcc0\uc870\uc5d0\uc11c \uc911\uc694\ud55c \uc218\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li>\ubcc0\uc870\ub41c \uc2e0\ud638: V<sub>AM<\/sub>(t) = (1 + m * cos(2\u03c0f<sub>m<\/sub>t)) * cos(2\u03c0f<sub>c<\/sub>t)<\/li>\n<li>\uc5ec\uae30\uc11c m\uc740 \ubcc0\uc870 \uc9c0\uc218(modulation index)\ub85c, \ubcc0\uc870 \uc2e0\ud638\uc758 \uc9c4\ud3ed \ub300\ube44 \uce90\ub9ac\uc5b4 \uc2e0\ud638\uc758 \uc9c4\ud3ed\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/li>\n<li>f<sub>m<\/sub>\uc740 \ubcc0\uc870 \uc2e0\ud638\uc758 \uc8fc\ud30c\uc218, f<sub>c<\/sub>\ub294 \uce90\ub9ac\uc5b4 \uc2e0\ud638\uc758 \uc8fc\ud30c\uc218\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\ubcc0\uc870 \uc9c0\uc218 m\uac12\uc740 0\uacfc 1 \uc0ac\uc774\uc5ec\uc57c \ud558\uba70, \uc774\ub97c \ucd08\uacfc\ud560 \uacbd\uc6b0 \uacfc\ubcc0\uc870(overmodulation)\uac00 \ubc1c\uc0dd\ud558\uc5ec \uc2e0\ud638\uc758 \uc65c\uace1(distortion)\uc774 \uc77c\uc5b4\ub0a0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. m \uac12\uc774 1\uc5d0 \uac00\uae4c\uc6b8\uc218\ub85d \ub354 \ub9ce\uc740 \uc815\ubcf4\ub97c \uc804\ub2ec\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc2e0\ud638 \uc65c\uace1\uc758 \uc704\ud5d8\uc774 \ucee4\uc9d1\ub2c8\ub2e4.<\/p>\n<h2>\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\uc758 \uad6c\uc131 \uc694\uc18c<\/h2>\n<p>\uae30\ubcf8\uc801\uc778 \uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\ub294 \uba87 \uac00\uc9c0 \uc8fc\uc694 \ubd80\ud488\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4:<\/p>\n<ul>\n<li>\uc815\ud604\ud30c \ubc1c\uc0dd\uae30: \uce90\ub9ac\uc5b4 \uc2e0\ud638\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\n<li>\ubcc0\uc870\uae30(modulator): \ubcc0\uc870 \uc2e0\ud638\uc640 \uce90\ub9ac\uc5b4 \uc2e0\ud638\ub97c \uacb0\ud569\ud558\uc5ec \uc9c4\ud3ed \ubcc0\uc870\ub41c \uc2e0\ud638\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc99d\ud3ed\uae30(amplifier): \ubcc0\uc870\ub41c \uc2e0\ud638\uc758 \uc804\ub825\uc744 \uc99d\ud3ed\uc2dc\ucf1c \uc1a1\uc2e0\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\uc758 \uc2e4\uc81c \uc751\uc6a9<\/h2>\n<p>\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\ub294 \ub77c\ub514\uc624 \ubc29\uc1a1\uc5d0\uc11c\ubfd0\ub9cc \uc544\ub2c8\ub77c \ub2e4\uc591\ud55c \ud1b5\uc2e0 \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ube44\uc0c1 \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c, \ubc29\uc1a1\uad6d \ub9c1\ud06c, \ud574\uc0c1 \ud1b5\uc2e0 \ub4f1\uc5d0\uc11c \uc9c4\ud3ed \ubcc0\uc870 \ubc29\uc2dd\uc744 \ucc3e\uc544\ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud68c\ub85c\ub294 \uadf8 \uac04\ub2e8\ud568\uacfc \ud6a8\uc728\uc131 \ub54c\ubb38\uc5d0 \uc624\ub79c \uc2dc\uac04 \ub3d9\uc548 \uc0ac\uc6a9\ub418\uc5b4 \uc654\uc73c\uba70, \uc55e\uc73c\ub85c\ub3c4 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \uacc4\uc18d\ud558\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\uc5d0 \ub300\ud55c \uc774\ud574\ub294 \uc804\uae30\uacf5\ud559\uacfc \ud1b5\uc2e0\uacf5\ud559\uc758 \uae30\ucd08\uc801\uc778 \ubd80\ubd84\uc73c\ub85c, \ub354 \uae4a\uc740 \uc804\uc790\uacf5\ud559\uc758 \uc774\ud574\ub97c \uc704\ud55c \ucd9c\ubc1c\uc810\uc774 \ub429\ub2c8\ub2e4. \uc624\ub298\ub0a0 \ub514\uc9c0\ud138 \ubcc0\uc870 \uae30\uc220\uc774 \ub110\ub9ac \uc0ac\uc6a9\ub418\uace0 \uc788\uc9c0\ub9cc, \uae30\ubcf8\uc801\uc778 \ubcc0\uc870 \uc6d0\ub9ac\ub97c \ubc30\uc6b0\ub294 \uac83\uc740 \uc5b4\ub5a0\ud55c \uace0\uae09 \uae30\uc220\uc744 \uc774\ud574\ud558\ub294 \ub370\uc5d0\ub3c4 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc548\ub0b4\ud558\ub294 \uae30\uc0ac\ub85c \uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\uc758 \uc791\ub3d9 \uc6d0\ub9ac\ub97c \ubc30\uc6b0\uace0 \ub77c\ub514\uc624 \ubc29\uc1a1 \ubc0f \uc804\uc790\uacf5\ud559\uc5d0\uc11c\uc758 \uadf8 \uc5ed\ud560\uacfc \uc751\uc6a9\uc744 \uc774\ud574\ud558\uc138\uc694.<\/p>\n","protected":false},"author":1,"featured_media":185390,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-148414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-88","tag-89","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" content=\"\uc548\ub0b4\ud558\ub294 \uae30\uc0ac\ub85c \uc9c4\ud3ed \ubcc0\uc870 \ud68c\ub85c\uc758 \uc791\ub3d9 \uc6d0\ub9ac\ub97c \ubc30\uc6b0\uace0 \ub77c\ub514\uc624 \ubc29\uc1a1 \ubc0f 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