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Ç¥ÁعøÈ£ TTAK.KO-10.1308-Part2 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2021-12-08 ÃÑÆäÀÌÁö 5
ÇѱÛÇ¥ÁØ¸í ±¤ÇÐ Ä«¸Þ¶ó Åë½Å ¹°¸®°èÃþ º¯Á¶ ¹æ½Ä Á¦2ºÎ: ±¤ÇÐ Â÷·® Åë½ÅÀ» À§ÇÑ ´ÜÀÏ Ä«¸Þ¶ó ±â¹Ý 2´Ü°è ÆÞ½º À§Ä¡ º¯Á¶(BPPM)
¿µ¹®Ç¥Áظí Modulation Method for Optical Camera Communication Part 2. Bi-level Pulse Position Modulation (BPPM) based a Single Camera for Optical Vehicular Communication
Çѱ۳»¿ë¿ä¾à VOCC ½Ã½ºÅÛ¿¡¼­´Â LED ¾î·¹À̸¦ ¼Û½Å±â·Î »ç¿ëÇÏ°í µÎ ´ëÀÇ Ä«¸Þ¶ó¸¦ ¼ö½Å±â·Î »ç¿ëÇÏ°í Àú¼Ó Ä«¸Þ¶ó¸¦ »ç¿ëÇÏ¿© Â÷·® ID¸¦ µðÄÚµùÇÏ°í ´Ù¸¥ °í¼Ó Ä«¸Þ¶ó¸¦ »ç¿ëÇÏ¿© Åë½Å µ¥ÀÌÅ͸¦ µðÄÚµùÇÑ´Ù. ¿©±â¿¡¼­ ´ÜÀÏ Ä«¸Þ¶ó¸¦ »ç¿ëÇÏ¿© °í¼Ó ¹× Àú¼Ó ½ºÆ®¸²À» µ¿½Ã¿¡ µðÄÚµùÇÒ ¼ö ÀÖ´Â »õ·Î¿î º¯Á¶ ±â¼úÀ» Á¦¾ÈÇß´Ù. Á¦¾ÈµÈ ±â¼úÀº Àú¼Ó ½ºÆ®¸²ÀÇ ºñÆ® Àü¼Û·üÀ» Áõ°¡½ÃŲ´Ù. °á°úÀûÀ¸·Î ¸µÅ© ¼³Á¤ ½Ã°£ÀÌ ´ÜÃàµÇ°í ³·Àº ÇÁ·¹ÀÓ ¼ÓµµÀÇ Ä«¸Þ¶ó°¡ ÇÊ¿äÇÏÁö ¾Ê°Ô µÈ´Ù.
¿µ¹®³»¿ë¿ä¾à In VOCC system, an LED array is used as a transmitter and two cameras as a receiver where a low speed camera is used to decode vehicular ID and other high speed camera to decode communication data. Here, we have proposed a novel modulation technique that enables the simultaneous decoding of both high-rate and low-rate stream using a single camera. The proposed technique augments the bit rate of the low-rate stream; consequently, the link setup time is reduced and the requirement of low frame rate camera is eliminated.
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°ü·ÃÆÄÀÏ TTAK.KO-10.1308-Part2.pdf TTAK.KO-10.1308-Part2.pdf            

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