AOA ±â¹ýÀ» ÀÌ¿ëÇÑ Àç¸Ó À§Ä¡ÃßÀû½Ã½ºÅÛ ¼³°è
Design of a Jammer Localization System using AOA method
ÀÓ´ö¿ø*, ÃÖÀ±¼·**, ÀÌ»óÁ¤**, Çã¹®¹ü*, ³²±â¿í*
Deok-Won Lim*, Yun-Sub Choi**, Sang-Jeong Lee**, Moon-Boem Hoe* and Gi-Wook Nam
¿ä ¾à
À§Ä¡°¡ °íÁ¤µÈ ´Ù¼öÀÇ ¼ö½Å±â¸¦ ÀÌ¿ëÇÏ¿© ÀüÆÄ ¼Û½Å±âÀÇ À§Ä¡¸¦ ÃßÁ¤ÇÏ´Â ±â¹ýÀ¸·Î TOA, TDOA, AOA ±â¹ý
ÀÌ ÀÖ´Ù. ÀÌ Áß TOA ±â¹ýÀº ¼Û½Å±â¿Í ¼ö½Å±âÀÇ ½Ã°¢ÀÌ µ¿±â µÇ¾úÀ» °æ¿ì¿¡¸¸ Àû¿ëÇÒ ¼ö ÀÖ°í, TDOA ±â¹ýÀº
±¤´ë¿ª ½ÅÈ£¿¡¸¸ Àû¿ëÇÒ ¼ö ÀÖÀ¸¹Ç·Î Àç¸ÓÀÇ À§Ä¡¸¦ ÃßÀûÇϱâ À§Çؼ´Â AOA ±â¹ýÀ» Àû¿ëÇÏ´Â °ÍÀÌ ÀûÇÕÇÏ´Ù.
µû¶ó¼ º» ³í¹®¿¡¼´Â AOA ÃøÁ¤Ä¡ÀÇ Æ¯¼ºÀ» ºÐ¼®Çϰí, ½Ã½ºÅÛ ¼³°è ÆÄ¶ó¹ÌÅÍ¿¡ µû¸¥ ÃøÀ§¼º´É ¹Î°¨µµ¸¦ ºÐ¼®
ÇÏ¿´´Ù. ºÐ¼®ÇÑ °á°ú¸¦ Åä´ë·Î ÇÏ¿© ¸ñÇ¥ ¼º´ÉÀ» ¸¸Á·½Ãų ¼ö ÀÖ´Â Àç¸Ó À§Ä¡ÃßÀû½Ã½ºÅÛÀ» ¼³°èÇÏ¿´°í, ¸ðÀǽÇ
ÇèÀ» ÅëÇÏ¿© 10km°Å¸®ÀÇ Àç¸Ó¿¡ ´ëÇÑ À§Ä¡ÃßÀû ¿ÀÂ÷°¡ 38mº¸´Ù ÀÛ°Ô ³ªÅ¸³ª´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
Abstract
There are TOA, TDOA and AOA method to estimate the position of the electromagnetic wave transmitter
by using the multiple receivers at the fixed position. Among these methods, AOA method is suitable for the
jammer localization system. Because TOA method can be adopted for the clocks of the transmitter and the
receiver are synchronized each other, and TDOA method can be only adopted for a broad-band jamming signal.
This paper, therefore, analyzes the characteristics of the AOA measurements and the sensitivity of the
positioning performance according to the system design parameters. Based on the analyzed results, the jammer
localization system to meet the desired performance is designed, and it has been checked that the positioning
error for the jammer located at a distance of 10km is lower than 38m through the simulation results.
Key words : Jammer, Localization, TOA, TDOA, AOA