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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 11 / 246 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¼Óµµ ÃßÁ¤¿ë ºöÆ÷¹Ö ±â¹Ý RFID ½Ã½ºÅÛ ¼º´É ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Performance of a Beamforming based RFID System for Velocity Estimation
ÀúÀÚ(Author) Àü¼ºÇÏ   ÀüÇö¹«   ¾çÈƱ⠠ Seong-ha Jeon   Hyeon-mu Jeon   Hoon-gee Yang  
¿ø¹®¼ö·Ïó(Citation) VOL 19 NO. 08 PP. 1925 ~ 1933 (2015. 08)
Çѱ۳»¿ë
(Korean Abstract)
RFID ±â¼ú¿¡ ·¹ÀÌ´õ ½Ã½ºÅÛÀ» Á¢¸ñ½ÃÄÑ Å±×ÀÇ ¾ÆÀ̵ð ȹµæ»Ó¸¸ ¾Æ´Ï¶ó À§Ä¡ Á¤º¸¸¦ Ãß°¡·Î ȹµæÇÒ ¼ö ÀÖ´Â ±â¼úÀÌ ÃÖ±Ù ¸¹Àº ÁÖ¸ñÀ» ¹Þ°í ÀÖ´Ù. º» ³í¹®¿¡¼­´Â űװ¡ ºÎÂøµÈ À̵¿ÇÏ´Â ¹°Ã¼·ÎºÎÅÍ ÅÂ±× ¾ÆÀ̵ð ¹× ¼Óµµ¸¦ ÃßÃâÇÏ´Â ÃÖ±Ù Á¦¾ÈµÈ RFID ½Ã½ºÅÛÀ» ºÐ¼®ÇÏ°í ¼º´ÉÀ» °ËÁõÇÑ´Ù. Á¦¾ÈµÈ ½Ã½ºÅÛ¿¡¼­´Â °¨½Ã¿µ¿ªÀ¸·Î ÁøÀÔÇÑ Å±װ¡ Áö»ó ºñÄÜÀ¸·Î ºÎÅÍ Æ®¸®°Å ½ÅÈ£¸¦ ¹ÞÀº ÈÄ ÅÂ±× ¾ÆÀ̵ð Á¤º¸¸¦ FMCW º¯Á¶ÇÑ ½ÅÈ£¸¦ ¸®´õ·Î Àü¼ÛÇÏ¸é ¸®´õ´Â ¼ö½Å ½ÅÈ£¸¦ º¹Á¶ÇÏ¿© ¾ÆÀ̵ð ¹× ¼Óµµ¸¦ µ¿½Ã¿¡ ȹµæÇÑ´Ù. º» ³í¹®¿¡¼­´Â ¼Û½Å ½ÅÈ£¿Í ±âÁؽÅÈ£ °£ÀÇ µ¿±â ¿ÀÂ÷°¡ ¹ß»ýÇÏ´Â °æ¿ì ¹× ½Ã½ºÅÛ ±¸ÇöÀ» À§ÇØ »ùÇøµ ·üÀ» ³·Ãá °æ¿ì Á¦½ÃµÈ ½Ã½ºÅÛÀÇ µ¿ÀÛ °¡´É¼º ¹× ¼º´É ¿­È­ Á¤µµ¸¦ ºÐ¼®ÇÏ°í ½Ã¹Ä·¹À̼ÇÀ¸·Î À̸¦ °ËÁõÇÑ´Ù.
¿µ¹®³»¿ë
(English Abstract)
RFID based applications that combine radar techniques to obtain the location and the ID of a tag have widely been investigated. In this paper, we analyze a recently proposed RFID system that can extract the tag IDs and their velocities using signals transmitted from the tag attached moving objects and verify its performance. In the proposed system, a beacon transmits triggering signal at regular intervals into a monitoring area and the tag receiving the triggering signal backscatters the FMCW(frequency modulation continuous wave) signal modulated by the tag ID. The reader system demodulates this FMCW signal using predefined two reference signals to obtain not only the tag ID but its velocity. In this paper, we show that the proposed system works properly and analyze the degree of performance degradation in cases when the synchronization error between the transmitting signal and the reference signal occurs, and even when sampling rate is lowered for implementation purpose. Finally, the analytical results are verified by simulation.
Å°¿öµå(Keyword) RFID   ¸®´õ   ºöÆ÷¹Ö   FMCW   RFID   reader   beamforming   FMCW  
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