{"id":1443,"date":"2023-02-23T23:51:57","date_gmt":"2023-02-23T23:51:57","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=1443"},"modified":"2023-02-23T23:51:57","modified_gmt":"2023-02-23T23:51:57","slug":"%eb%aa%a8%eb%b0%94%ec%9d%bc-%ec%84%bc%ec%8b%b1-gps-%ec%9c%84%ec%b9%98","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/ko\/%ea%b8%b0%ec%88%a0-2\/%eb%aa%a8%eb%b0%94%ec%9d%bc-%ec%84%bc%ec%8b%b1-gps-%ec%9c%84%ec%b9%98\/","title":{"rendered":"\ubaa8\ubc14\uc77c \uc13c\uc2f1: GPS \uc704\uce58"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"the-global-positioning-system-gps\">\uae00\ub85c\ubc8c \ud3ec\uc9c0\uc154\ub2dd \uc2dc\uc2a4\ud15c (GPS)<\/h2>\n\n\n<p>The Global Positioning System (GPS) is a location system developed by the United States Department of Defense for military purposes. It provides accurate estimates of position, velocity, and time by using a computer network and a constellation of 24 satellites to determine the altitude, longitude, and latitude of any object on the Earth\u2019s surface through triangulation. The system has been operational since 1995.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"civil-use-of-gps\">GPS\uc758 \ubbfc\uac04 \uc0ac\uc6a9<\/h3>\n\n\n<p>\ubbfc\uac04 \ubd84\uc57c\uc5d0\uc11c\ub294 \ubcf4\uc548\uc0c1\uc758 \uc774\uc720\ub85c GPS \uc2e0\ud638\uc758 \uc5f4\ud654\ub41c \ud558\uc704 \uc9d1\ud569\ub9cc \ud5c8\uc6a9\ub429\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ubbfc\uac04 \ucee4\ubba4\ub2c8\ud2f0\ub294 \ucc28\ub4f1 \uae30\uc220\uc744 \ud1b5\ud574 \uc6b0\uc218\ud55c \uc704\uce58 \uc815\ubc00\ub3c4\ub97c \uc5bb\uae30 \uc704\ud55c \ub300\uc548\uc744 \ucc3e\uc558\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uae30\uc220\uc740 \ubbfc\uac04 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc758 \uc5c4\uccad\ub09c \uc131\uc7a5\uc744 \uc774\ub04c\uc5c8\uc73c\uba70 \ud604\uc7ac GPS \uc218\uc2e0\uae30 \uc81c\uc870\uc5c5\uccb4\uac00 70\uac1c \uc774\uc0c1 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"principles-of-operation\">\uc791\ub3d9 \uc6d0\ub9ac<\/h3>\n\n\n<p>\uc758 \ubaa9\uc801\uc740 <a href=\"https:\/\/www.gps.gov\/\" target=\"_blank\" rel=\"noreferrer noopener\">GPS \uc2dc\uc2a4\ud15c<\/a> \ub294 \uc704\uce58\uac00 \uc54c\ub824\uc9c4 \ucd5c\uc18c \uc138 \uac1c\uc758 \uc704\uc131\uc5d0 \ub300\ud55c \uc9c0\uc810\uc758 \uac70\ub9ac\ub97c \uacc4\uc0b0\ud558\ub294 \uac83\uc5d0\uc11c \uc2dc\uc791\ud558\uc5ec \uc88c\ud45c \uacf5\uac04(x,y,z)\uc758 \uc784\uc758\uc758 \uc9c0\uc810\uc758 \uc704\uce58\ub97c \uacc4\uc0b0\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc0ac\uc6a9\uc790(GPS \uc218\uc2e0\uae30)\uc640 \uc704\uc131 \uac04\uc758 \uac70\ub9ac\ub294 \uc704\uc131\uc5d0\uc11c \ubc29\ucd9c\ub41c \uc2e0\ud638\uc758 \ube44\ud589 \uc2dc\uac04\uc744 \uc804\ud30c \uc18d\ub3c4\ub85c \uacf1\ud558\uc5ec \uce21\uc815\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>To figure out how long the radio signal took to travel, the satellites and receivers\u2019 clocks must be set to the same time. This is because they both have to send out the same code at the same time. But while the clocks on the satellites are very accurate, the clocks on the receivers are cheap quartz oscillators that are not accurate. Distances with errors due to synchronism are called pseudoranges. The difference in the clocks of the receivers is another unknown that makes it necessary to use at least four satellites to figure out where the receivers are.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"calculation-of-pseudoranges\">\uc758\uc0ac\uac70\ub9ac \uacc4\uc0b0<\/h3>\n\n\n<p>\uc758\uc0ac\uac70\ub9ac \uacc4\uc0b0 \uc2dc GPS \uc2e0\ud638\uac00 \uc57d\ud558\uace0 \ub77c\ub514\uc624 \ub300\uc5ed\uc5d0\uc11c \ud589\uc131\uc5d0 \ub0b4\uc7ac\ub41c \ubc30\uacbd \uc18c\uc74c\uc5d0 \uc7a0\uaca8 \uc788\ub2e4\ub294 \uc810\uc744 \uace0\ub824\ud569\ub2c8\ub2e4. \uc774 \uc790\uc5f0 \uc18c\uc74c\uc740 \ubb34\uc791\uc704 \ud384\uc2a4\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc5b4 GPS \uc218\uc2e0\uae30\uac00 \ubcc0\ub3d9 \ud328\ud134\uc73c\ub85c \uc778\uacf5\uc801\uc778 \uc758\uc0ac \ub09c\uc218 \ucf54\ub4dc\ub97c \uc0dd\uc131\ud558\uac8c \ub429\ub2c8\ub2e4. \uac01 \uc21c\uac04\ub9c8\ub2e4 \uc704\uc131\uc740 \uc218\uc2e0\uae30\uac00 \uc0dd\uc131\ud55c \uc758\uc0ac \ub09c\uc218 \uc2dc\ub9ac\uc988\uc640 \ub3d9\uc77c\ud55c \ud328\ud134\uc758 \uc2e0\ud638\ub97c \uc804\uc1a1\ud569\ub2c8\ub2e4. \uc774 \ub3d9\uae30\ud654\ub97c \uae30\ubc18\uc73c\ub85c \uc218\uc2e0\uae30\ub294 \uc218\uc2e0\ub41c \ucf54\ub4dc\uc640 \uc77c\uce58\ud560 \ub54c\uae4c\uc9c0 \uc758\uc0ac \ub09c\uc218 \ucf54\ub4dc\ub97c \uc2dc\uac04\uc801\uc73c\ub85c \uc774\ub3d9\uc2dc\ucf1c \uac70\ub9ac\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4. \uc774 \ubcc0\uc704\ub294 \uc2e0\ud638\uc758 \ube44\ud589 \uc2dc\uac04\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc740 \uac01 \uc218\uc2e0\uae30\uc5d0\uc11c \uc790\ub3d9\uc73c\ub85c, \uc9c0\uc18d\uc801\uc73c\ub85c, \uc989\uc2dc \uc218\ud589\ub429\ub2c8\ub2e4.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"ground-stations-and-atomic-clocks\">\uc9c0\uc0c1\uad6d\uacfc \uc6d0\uc790 \uc2dc\uacc4<\/h3>\n\n\n<p>\uc704\uc131\uc758 \uc18d\ub3c4\uac00 \ub192\uc9c0\ub9cc(4 km\/s), 24~48\uc2dc\uac04 \ub3d9\uc548\uc758 \uc774\uc804 \uc704\uce58 \uc608\uce21\uc744 \uae30\ubc18\uc73c\ub85c \uc989\uac01\uc801\uc778 \uc704\uce58\ub97c \uba87 \ubbf8\ud130 \ubbf8\ub9cc\uc758 \uc624\ucc28\ub85c \ucd94\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc9c0\uc0c1\uad6d\uc740 \uc8fc\uae30\uc801\uc73c\ub85c \uc704\uc131\uc758 \uc6d0\uc790 \uc2dc\uacc4, \ub450 \uac1c\uc758 \uc138\uc298\uacfc \ub450 \uac1c\uc758 \ub8e8\ube44\ub4d0\uc744 \uac80\ud1a0\ud558\uc5ec \uc5d0\ud398\uba38\ub9ac\uc2a4\uc640 \uc2dc\uacc4\uc758 \ubcf4\uc815\uc744 \uc804\uc1a1\ud569\ub2c8\ub2e4. \uc2dc\uacc4\uc758 \uc815\ubc00\ub3c4\uc640 \uc704\uc131 \uada4\ub3c4\uc758 \uc548\uc815\uc131\uc740 GPS \uc2dc\uc2a4\ud15c \uc6b4\uc601\uc758 \ud575\uc2ec\uc785\ub2c8\ub2e4.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"sources-of-error-in-gps\">GPS\uc758 \uc624\ub958 \uc6d0\uc778<\/h2>\n\n\n<p>GPS \uce21\uc815\uc5d0 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\ub294 \uc5ec\ub7ec \uc624\ub958 \uc6d0\uc778\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc8fc\uc694 \uc6d0\uc778 \uc911 \uc77c\ubd80\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<p>- <strong>\uc804\ub9ac\uce35 \uc7a5\uc560:<\/strong> \uc804\ub9ac\uce35\uc740 \uc804\ud558\ub97c \ub764 \uc785\uc790\ub85c \uad6c\uc131\ub41c \uce35\uc73c\ub85c, \uc774\ub97c \ud1b5\uacfc\ud558\ub294 \ub77c\ub514\uc624 \uc2e0\ud638\uc758 \uc18d\ub3c4\uc5d0 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\uae30\uc0c1 \ud604\uc0c1:<\/strong> Water vapor in the troposphere, the layer closest to the Earth\u2019s surface, can slow down electromagnetic signals and cause errors in GPS measurements that are difficult to correct.<\/p>\n\n\n\n<p>- <strong>\uc2dc\uacc4\uc758 \ubd80\uc815\ud655\uc131:<\/strong> \uc2e0\uc911\ud55c \uc870\uc815\uacfc \uc81c\uc5b4\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 GPS \uc704\uc131 \uc6d0\uc790 \uc2dc\uacc4\uc640 \uc218\uc2e0\uae30 \uc2dc\uacc4 \ubaa8\ub450 \uc57d\uac04\uc758 \ud3b8\ucc28\ub97c \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\uc608\uae30\uce58 \uc54a\uc740 \uc804\uae30 \uac04\uc12d:<\/strong> \uc804\uae30 \uac04\uc12d\uc740 \uc758\uc0ac \ub09c\uc218 \ucf54\ub4dc\uc758 \uc0c1\uad00\uad00\uacc4\ub098 \uada4\ub3c4 \uacc4\uc0b0\uc5d0 \uc624\ub958\ub97c \uc77c\uc73c\ucf1c \ucd5c\ub300 1\ubbf8\ud130\uc758 \ubd88\uc77c\uce58\ub97c \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\ub2e4\uc911 \uacbd\ub85c \uc624\ub958:<\/strong> GPS signals can be reflected off surfaces before reaching the receiver, leading to errors in the measured distance. It\u2019s challenging to minimize this error as it depends on the GPS antenna\u2019s environment.<\/p>\n\n\n\n<p>- <strong>\uc120\ud0dd\uc801 \uac00\uc6a9\uc131 (S\/A):<\/strong> \uad70\ub300\ub294 \uc774 \uc624\ub958 \uc6d0\uc778\uc744 \uc758\ub3c4\uc801\uc73c\ub85c \ub3c4\uc785\ud558\uc5ec \uac00\uc7a5 \ud070 \uc6d0\uc778\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\uc218\uc2e0\uae30-\uc704\uc131 \ud1a0\ud3f4\ub85c\uc9c0:<\/strong> \uac70\ub9ac \uacc4\uc0b0\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uac00\uc2dc \uc704\uc131\uc758 \uacf5\uac04 \ubc30\uc5f4\uc740 GPS \uce21\uc815\uc758 \uc815\ubc00\ub3c4\uc5d0 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uae09 \uc218\uc2e0\uae30\ub294 \uac70\ub9ac \uce21\uc815 \uc624\ub958\ub97c \uc218\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>These sources of error can be categorized into those that depend on the satellites\u2019 geometry and those that don\u2019t. Selective availability and clock errors are not affected by the shape of the satellite, but ionospheric and tropospheric delays and multipath errors are very affected by the shape of the satellite. Each GPS position measurement has a value called \u201c<a href=\"https:\/\/www.gnss.ca\/app_notes\/APN-029_GPS_Position_Accuracy_Measures_Application_Note.html\" target=\"_blank\" rel=\"noreferrer noopener\">\ubd88\ud655\uc2e4\uc131<\/a>\u201d that is based on all the different sources of error.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"gps-applications\"><strong>GPS \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8<\/strong><\/h2>\n\n\n<p>GPS \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc740 \ub0b4\ube44\uac8c\uc774\uc158 \ubcf4\uc870 \uc2dc\uc2a4\ud15c, \ub300\uae30 \ubc0f \uc9c0\uc0c1 \uacf5\uac04 \ubaa8\ub378\ub9c1, \uace0\uc815\ubc00 \uc2dc\uac04 \uce21\uc815\uc744 \ud3ec\ud568\ud55c \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ubbfc\uac04 \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 GPS \uc2dc\uc2a4\ud15c\uc758 \uba87 \uac00\uc9c0 \uc608\uc785\ub2c8\ub2e4:<\/p>\n\n\n\n<p>- <strong>\ub300\uae30 \ud604\uc0c1 \uc5f0\uad6c:<\/strong> GPS \uc2e0\ud638\ub294 \ub300\ub958\uad8c\uc758 \uc218\uc99d\uae30\uc5d0 \uc758\ud574 \ubc1c\uc0dd\ud558\ub294 \uc18d\ub3c4 \ubcc0\ud654\ub97c \ubd84\uc11d\ud558\uc5ec \uae30\uc0c1 \uc608\uce21 \ubaa8\ub378\uc744 \uac1c\ubc1c\ud558\ub294 \ub370 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\ud5d8\ub09c\ud55c \uc9c0\uc5ed\uc5d0\uc11c\uc758 \uc704\uce58 \ubc0f \ub0b4\ube44\uac8c\uc774\uc158:<\/strong> GPS\ub294 \uc811\uadfc\ud558\uae30 \uc5b4\ub824\uc6b4 \uc9c0\uc5ed\uc774\ub098 \ub79c\ub4dc\ub9c8\ud06c\uac00 \uc5c6\ub294 \uc9c0\uc5ed\uc5d0\uc11c \uc5f0\uad6c \ud0d0\uc0ac\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774\ub294 \uadf9\uc9c0\ubc29\uc774\ub098 \uc0ac\ub9c9 \uc9c0\uc5ed\uc5d0 \ub300\ud55c \uc9c0\uc2dd\uc744 \uc2ec\ud654\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\uc9c0\uc9c8 \ubc0f \uc9c0\ud615 \ubaa8\ub378:<\/strong> GPS\ub294 \uc9c0\uc9c8\ud559\uc790\ub4e4\uc774 \ud310 \uad6c\uc870 \uc6b4\ub3d9\uc744 \uc5f0\uad6c\ud558\uace0 \uc9c0\uc9c4 \uc608\uce21\uc744 \uc704\ud574 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub610\ud55c \uc9c0\ud615 \uc870\uc0ac \ubc0f \uc0b0\ub9bc \ubc0f \ub18d\uc5c5 \uc778\ubca4\ud1a0\ub9ac\uc758 \uae30\ubcf8 \ub3c4\uad6c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\ud1a0\ubaa9 \uacf5\ud559:<\/strong> GPS\ub294 \uae08\uc18d \ub610\ub294 \ucf58\ud06c\ub9ac\ud2b8 \uad6c\uc870\ubb3c\uacfc \uac19\uc740 \ud558\uc911\uc744 \ubc1b\ub294 \ub300\ud615 \uad6c\uc870\ubb3c\uc758 \ubcc0\ud615\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \ubaa8\ub2c8\ud130\ub9c1\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\uc790\ub3d9 \uacbd\ubcf4 \uc2dc\uc2a4\ud15c:<\/strong> GPS\ub294 \uace0\uc704\ud5d8 \uc624\uc5fc \ubc0f \ubd80\ud328\uc131 \ud654\ubb3c\uc758 \uc6b4\uc1a1\uc744 \ubaa8\ub2c8\ud130\ub9c1\ud558\ub294 \uc13c\uc11c\uc5d0 \uc5f0\uacb0\ub41c \uacbd\ubcf4 \uc2dc\uc2a4\ud15c\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uacbd\ubcf4\ub294 \ucc28\ub7c9\uc5d0 \ub300\ud55c \uc2e0\uc18d\ud55c \uc9c0\uc6d0\uc744 \ud5c8\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\uc2e0\ud638 \ub3d9\uae30\ud654:<\/strong> \uc804\uae30 \uc0b0\uc5c5\uc740 \uc804\uae30 \uc11c\ube44\uc2a4\uc758 \uac00\ub2a5\ud55c \uacb0\ud568\uc744 \ucc3e\uae30 \uc704\ud574 \ubaa8\ub2c8\ud130\ub9c1 \uc2a4\ud14c\uc774\uc158\uc758 \uc2dc\uacc4\ub97c \ub3d9\uae30\ud654\ud558\ub294 \ub370 GPS\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\uc2e0\uccb4 \uc7a5\uc560\uc778\uc744 \uc704\ud55c \uc548\ub0b4:<\/strong> GPS \uc2dc\uc2a4\ud15c\uc740 \uc2dc\uac01 \uc7a5\uc560\uc778\uc774 \ub3c4\uc2dc\ub97c \ud0d0\uc0c9\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc8fc\uae30 \uc704\ud574 \uac1c\ubc1c\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uad00\uad11\uc5d0\uc11c \uacbd\ub85c\uc758 \ub2e4\uc591\ud55c \uc7a5\uc18c \uac04\uc758 \uacbd\ub85c\ub97c \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\uc744 \uc5f0\uad6c\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\ucc28\ub7c9 \ud568\ub300\uc758 \ub0b4\ube44\uac8c\uc774\uc158 \ubc0f \uc81c\uc5b4:<\/strong> GPS\ub294 \uacbd\ucc30, \uc751\uae09 \uc11c\ube44\uc2a4, \ud0dd\uc2dc \uc815\ub958\uc7a5, \ud0dd\ubc30 \uc11c\ube44\uc2a4 \ubc0f \ubc30\ub2ec \ud68c\uc0ac\uc640 \uac19\uc740 \uc870\uc9c1\uc5d0 \uc758\ud574 \uada4\uc801 \uacc4\ud68d \ubc0f \ucc28\ub7c9 \ud568\ub300 \uc81c\uc5b4\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\ubbfc\uac04 \ud56d\uacf5 \uc2dc\uc2a4\ud15c:<\/strong> GPS\ub294 \ubbfc\uac04 \ud56d\uacf5\uc5d0\uc11c \ub0b4\ube44\uac8c\uc774\uc158 \ubc0f \ucc29\ub959 \uc791\uc5c5\uc744 \ub3d5\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uadf8 \uc911\uc694\uc131\uc73c\ub85c \uc778\ud574 GPS \uc815\ud655\ub3c4\ub97c \uac1c\uc120\ud558\uae30 \uc704\ud55c \uc2dc\uc2a4\ud15c \uac1c\ubc1c\uc774 \uc774\ub8e8\uc5b4\uc84c\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>- <strong>\ubb34\uc778 \ucc28\ub7c9 \ub0b4\ube44\uac8c\uc774\uc158:<\/strong> GPS\ub294 \uc790\uc728 \uc721\uc0c1 \ucc28\ub7c9, \uc801\ub300\uc801 \ud658\uacbd\uc5d0\uc11c\uc758 \uac10\uc2dc \ubc0f \ud654\ubb3c \uc6b4\uc1a1\uc5d0\uc11c \uc815\ubc00\ud55c \uae30\ub3d9\uc744 \uc704\ud55c DGPS \uc2dc\uc2a4\ud15c\uc5d0 \ud1b5\ud569\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>GPS \uce21\uc815\uc758 \ub192\uc740 \uc815\ubc00\ub3c4\ub85c \uc778\ud574 \uc800\uada4\ub3c4\uc5d0\uc11c \uc6b0\uc8fc\uc5d0\uc11c \uc911\uc694\ud55c \ubc1c\uc804\uc774 \uc774\ub8e8\uc5b4\uc84c\uc2b5\ub2c8\ub2e4. \ub85c\ubd07\uc740 \uc774\uc81c \uc778\uacf5\uc704\uc131\uc744 \uac80\uc0ac, \uc218\ub9ac \ubc0f \uc870\ub9bd\ud558\ub294 \ub4f1\uc758 \uc704\ud5d8\ud55c \uc791\uc5c5\uc744 \uc2a4\uc2a4\ub85c \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"the-future-of-gps\"><strong>GPS\uc758 \ubbf8\ub798<\/strong><\/h2>\n\n\n<p>1996\ub144 GPS \uc2dc\uc2a4\ud15c\uc744 \uaddc\uc728\ud558\ub294 \uaddc\uc815\uc5d0 \ub530\ub974\uba74 \uc120\ud0dd\uc801 \uac00\uc6a9\uc131\uc740 2006\ub144\uc5d0 \uc5b5\uc81c\ub418\uace0 \ubbfc\uac04 \uc0ac\uc6a9\uc744 \uc704\ud574 \ud558\ub098\uc758 \uc8fc\ud30c\uc218\uac00 \ucd94\uac00\ub420 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \uba87 \ub144 \ub0b4\uc5d0,<a href=\"https:\/\/www.gps.gov\/systems\/gps\/modernization\/civilsignals\/\" target=\"_blank\" rel=\"noreferrer noopener\"> GPS \uc704\uc131\uc774 L2 \ubc0f L1 \uc8fc\ud30c\uc218 \ubaa8\ub450\uc5d0\uc11c \ubbfc\uac04 \ucf54\ub4dc\ub97c \uc804\uc1a1\ud560 \uac83\uc784\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4<\/a>. \uc774\ub294 \uc774\uc628\uce35 \uc624\ub958\ub97c \ucd94\uc815\ud558\uace0 \ucc28\ub4f1 \uae30\uc220\ub85c \ub2ec\uc131\ud560 \uc218 \uc788\ub294 \uac83\uacfc \uc720\uc0ac\ud55c \uc808\ub300 \ubaa8\ub4dc \uc815\ubc00\ub3c4\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub294 \uc911\ubcf5\uc131\uc744 \uc0dd\uc131\ud560 \uac83\uc785\ub2c8\ub2e4. L1 \uc8fc\ud30c\uc218\uc758 \uc2e0\ud638\ub294 \ub3d9\uc77c\ud558\uac8c \uc720\uc9c0\ub418\ubbc0\ub85c \ud604\uc7ac \uc218\uc2e0\uae30\ub294 \uacc4\uc18d \uc791\ub3d9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc81c\uc5b4 \uc138\uadf8\uba3c\ud2b8\ub294 \ud604\uc7ac \uc124\uacc4 \ub2e8\uacc4\uc5d0 \uc788\ub294 \uc804\ubb38\uac00 \uc2a4\ud14c\uc774\uc158\uc744 \uc704\ud55c \uc0c8\ub85c\uc6b4 \uc81c\uc5b4 \uc2dc\uc2a4\ud15c\uc758 \uac00\ub3d9\uc73c\ub85c \uac1c\uc120\ub420 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ucd5c\ub300 20\uac1c\uc758 \ubaa8\ub2c8\ud130\ub9c1 \uc2a4\ud14c\uc774\uc158\uc744 \ud3ec\ud568\ud558\uc5ec \uc5d0\ud398\uba38\ub9ac\uc2a4 \ubc0f \uc704\uc131 \uc2dc\uacc4\uc758 \ubcf4\ub2e4 \uc815\ubc00\ud55c \uc81c\uc5b4\ub97c \uac00\ub2a5\ud558\uac8c \ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uadf8\ub7ec\ub098 \ud604\uc7ac GPS, GLONASS \ubc0f GPS\/GLONASS \ub0b4\ube44\uac8c\uc774\uc158 \uc2dc\uc2a4\ud15c\uc740 \ud56d\uacf5 \ub0b4\ube44\uac8c\uc774\uc158\uacfc \uac19\uc740 \uc77c\ubd80 \ubbfc\uac04 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \uc694\uad6c\ub418\ub294 \uc5c4\uaca9\ud55c \uc548\uc804 \uae30\uc900\uc744 \ucda9\uc871\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc2dc\uc2a4\ud15c \uc791\ub3d9\uc5d0 \ub300\ud55c \uc0ac\uc6a9\uc790\uc5d0\uac8c \uc624\ub958\ub97c \uc54c\ub9ac\ub294 \ub370\ub294 \uc704\uc131\uc5d0\uc11c \uc624\ub958\uac00 \ubc1c\uc0dd\ud560 \ub54c 1\ucd08\uc5d0\uc11c \uc81c\uc5b4 \uc138\uadf8\uba3c\ud2b8\uac00 \uc624\ub958\ub97c \uac10\uc9c0\ud558\ub294 \uacbd\uc6b0 \uba87 \uc2dc\uac04\uae4c\uc9c0 \uac78\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774\ub7ec\ud55c \ub2e8\uc810\uc744 \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc720\ub7fd\uc740 <a href=\"https:\/\/www.esa.int\/Applications\/Navigation\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">\uc774\uadf8\ub178\uc2a4 <\/a>(\uc720\ub7fd \uc815\uc9c0\uada4\ub3c4 \ub0b4\ube44\uac8c\uc774\uc158 \uc624\ubc84\ub808\uc774 \uc11c\ube44\uc2a4)\ub97c \uac1c\ubc1c \uc911\uc774\uba70 2003\ub144\uc5d0 \uc6b4\uc601\ub420 \uc608\uc815\uc785\ub2c8\ub2e4. \uc774 \uc2dc\uc2a4\ud15c\uc740 GPS \uc2e0\ud638\ub97c \uc218\uc2e0\ud558\uace0 \uc704\uce58 \uc624\ub958\ub97c \uc904\uc774\uae30 \uc704\ud574 \uc9c0\uc0c1\uc5d0 34\uac1c\uc758 \uace0\uc815 \uc218\uc2e0 \uc548\ud14c\ub098(RIMS) \ub124\ud2b8\uc6cc\ud06c\ub97c \uc124\uce58\ud558\uc5ec \ud56d\uacf5 \ub0b4\ube44\uac8c\uc774\uc158\uc758 \uc548\uc804 \uae30\uc900\uc744 \ucda9\uc871\ud560 \uac83\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc2e0\ud638\ub294 \uc704\uc131 \uc815\ubcf4\ub97c \ubcf4\uc815\ud558\uace0 \uac00\ub2a5\ud55c \uc624\ub958\ub97c \uce21\uc815\ud558\uc5ec \uc218\uc815\ud558\uae30 \uc704\ud574 \uc81c\uc5b4 \uc13c\ud130\ub85c \uc804\uc1a1\ub41c \ud6c4 \ub2e4\uc2dc 10\uac1c\uc758 \uc9c0\uc0c1\uad6d\uc73c\ub85c \uc804\uc1a1\ub429\ub2c8\ub2e4. \ub610\ud55c \uc774\ub7ec\ud55c \uc2e0\ud638\ub294 35,000km \uace0\ub3c4\uc5d0 \uc704\uce58\ud55c \ub450 \uac1c\uc758 \uc0c8\ub85c\uc6b4 \uc815\uc9c0\uada4\ub3c4 INMARSAT \uc704\uc131\uc73c\ub85c \uc804\uc1a1\ub418\uc5b4 \uc911\uacc4\uae30 \uc5ed\ud560\uc744 \ud558\uace0 \uc0ac\uc6a9\uc790\uc5d0\uac8c \uc2e0\ud638\ub97c \uc804\uc1a1\ud569\ub2c8\ub2e4. \ubbf8\uad6d(<a href=\"https:\/\/skybrary.aero\/wide-area-augmentation-system-waas\" target=\"_blank\" rel=\"noreferrer noopener\">WAAS: \uad11\uc5ed \uc99d\uac15 \uc2dc\uc2a4\ud15c<\/a>)\uacfc \uc77c\ubcf8(<a href=\"https:\/\/gssc.esa.int\/navipedia\/index.php\/MSAS_Space_Segment\" target=\"_blank\" rel=\"noreferrer noopener\">\uc5e0\ud2f0\uc5d0\uc2a4\uc5d0\uc774\uc5d0\uc2a4<\/a>: MTSAT \uc704\uc131 \uae30\ubc18 \uc99d\uac15 \uc2dc\uc2a4\ud15c)\ub3c4 \uc720\uc0ac\ud55c \uc11c\ube44\uc2a4\ub97c \uac1c\ubc1c \uc911\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p><a href=\"https:\/\/joinup.ec.europa.eu\/collection\/rolling-plan-ict-standardisation\/european-global-navigation-satellite-system-egnss\" target=\"_blank\" rel=\"noreferrer noopener\">\uc720\ub7fd\uc740 \ub610\ud55c GNSS-1\uc744 \ubc1c\uc0ac\ud560 \uac83\uc785\ub2c8\ub2e4<\/a>, which stands for \u201cGlobal Navigation Satellite System 1.\u201d This system will combine the services of GPS, GLONASS, EGNOS, WAAS, and MTSAS. This will be the first step toward a European positioning system (GNSS-2 or Galileo) that will use a constellation of European satellites.<\/p>\n\n\n\n<p>\ub9c8\uc9c0\ub9c9\uc73c\ub85c, \ud5a5\ud6c4 5\ub144 \ub0b4\uc5d0 GPS \ubc0f GPS\/GLONASS\uac00 \uc6b4\uc601\ub420 \uc720\uc77c\ud55c \uc704\uc131 \uae30\ubc18 \uc704\uce58 \uc2dc\uc2a4\ud15c\uc774 \ub420 \uac83\uc784\uc744 \uc8fc\ubaa9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"in-conclusion\">\uacb0\ub860\uc801\uc73c\ub85c<\/h2>\n\n\n<p>\ub192\uc740 \uc218\uc900\uc758 \uc815\ud655\uc131\uc744 \ub2ec\uc131\ud558\ub824\uba74 GPS \uce21\uc815 \uc624\ub958\uc758 \uae30\uc6d0\uc744 \uc778\uc2dd\ud574\uc57c \ud569\ub2c8\ub2e4. NOAA GPS \ud234\ubc15\uc2a4\ub294 GPS \uae30\uc220\uacfc \uad00\ub828\ub41c \uc5f0\uad6c\uc6d0 \ubc0f \uc5d4\uc9c0\ub2c8\uc5b4\uc5d0\uac8c \ud544\uc218\uc801\uc778 \ub3c4\uad6c\ub85c, \uc774\ub7ec\ud55c \ubd80\uc815\ud655\uc131\uc744 \uc904\uc774\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\ub294 \uc720\uc6a9\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc640 \ub9ac\uc18c\uc2a4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Global Positioning System (GPS) The Global Positioning System (GPS) is a location system developed by the United States Department of Defense for military purposes. It provides accurate estimates of\u2026 <a class=\"more-link\" href=\"https:\/\/securitybriefing.net\/ko\/%ea%b8%b0%ec%88%a0-2\/%eb%aa%a8%eb%b0%94%ec%9d%bc-%ec%84%bc%ec%8b%b1-gps-%ec%9c%84%ec%b9%98\/\"><span class=\"screen-reader-text\">\ubaa8\ubc14\uc77c \uc13c\uc2f1: GPS \uc704\uce58<\/span> <strong>\uacc4\uc18d \uc77d\uae30<\/strong><\/a><\/p>","protected":false},"author":3,"featured_media":1452,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-1443","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mobile Sensing: GPS Location | Security Briefing<\/title>\n<meta name=\"description\" content=\"Discover the sources of error in GPS measurements and how the NOAA GPS Toolbox can help. 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