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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ¼¾¼­³×Æ®¿öÅ© À§Ä¡ÀνÄÀ» À§ÇØ GPS°¡ Á¦°øÇÏ´Â À§Ä¡Á¤º¸¿Í TWR ¹æ½ÄÀ¸·Î ÃøÁ¤µÈ ³ëµå°£ÀÇ °Å¸® Á¤º¸¸¦ À¶ÇÕÇÏ´Â ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Techniques for Fusing GPS Location and TWR Ranging Information for Sensor Network Localization
ÀúÀÚ(Author) ±Ç¿ÀÈì   º¯»ó±¸   ±è»óÈÆ   À̳뺹   Oh-Heum Kwon   Sang Gu Byeon   Sang Hun Kim   Noh Bok Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 39 NO. 01 PP. 0060 ~ 0072 (2012. 02)
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(Korean Abstract)
¼¾¼­³×Æ®¿öÅ© À§Ä¡ÀνÄÀ̶ó´Â ¾ÞÄ¿³ëµåµéÀÇ À§Ä¡Á¤º¸¿Í ³ëµåµé °£ÀÇ ÃøÁ¤µÈ °Å¸® Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© ³ëµåµéÀÇ À§Ä¡¸¦ °áÁ¤ÇÏ´Â °úÁ¤À» ¸»ÇÑ´Ù. º» ³í¹®¿¡¼­´Â °¢°¢ÀÇ ¾ÞÄ¿³ëµå°¡ GPS ¼ö½Å±â¸¦ ÀåÂøÇÏ°í ÀÖ°í, GPS ¼ö½Å À§Ä¡¸¦ ÀÚ½ÅÀÇ À§Ä¡·Î »ç¿ëÇÏ´Â °æ¿ì¸¦ ´Ù·é´Ù. ÀϹÝÀûÀ¸·Î ¼¾¼­³×Æ®¿öÅ© À§Ä¡ÀνĿ¡¼­ ¾ÞÄ¿³ëµåÀÇ À§Ä¡´Â ½Å·ÚÇÒ¸¸ÇÑ °ÍÀ¸·Î °£ÁֵȴÙ. ±×·±µ¥ GPS À§Ä¡ÀÇ Á¤È®µµ´Â Á¾Á¾ ÀÀ¿ëºÐ¾ß°¡ ¿ä±¸ÇÏ´Â ¼öÁØ¿¡ ¹ÌÄ¡Áö ¸øÇÒ ¼ö ÀÖ´Ù. ´õ±¸³ª ȯ°æ¿¡ µû¶ó¼­´Â GPS º¸´Ù »ó´ëÀûÀ¸·Î ´õ Á¤È®ÇÑ °Å¸®ÃøÁ¤ ±â¼úµéµµ Á¸ÀçÇÑ´Ù. Nanotron»çÀÇ NanoLoc RF¿¡¼­ »ç¿ëµÇ´Â TWR °Å¸® ÃøÁ¤ ±â¼úÀº ±× ÇÑ ¿¹ÀÌ´Ù. º» ³í¹®¿¡¼­´Â GPS°¡ Á¦°øÇÑ À§Ä¡Á¤º¸¿Í ³ëµåµé °£ÀÇ °Å¸® ÃøÁ¤ Á¤º¸¸¦ È¿°úÀûÀ¸·Î À¶ÇÕÇÏ¿© º¸´Ù Çâ»óµÈ À§Ä¡ÀνÄÀ» ´Þ¼ºÇÏ´Â ¹æ¹ý¿¡ ´ëÇؼ­ ´Ù·é´Ù. Áï, GPS°¡ ¼ö½ÅÇÑ À§Ä¡¸¦ ±×´ë·Î ¾ÞÄ¿ ³ëµåÀÇ À§Ä¡·Î »ç¿ëÇÏ´Â ´ë½Å ³ëµåµé °£ÀÇ °Å¸® ÃøÁ¤ Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© º¸Á¤ÇÔÀ¸·Î½á º¸´Ù ³ªÀº À§Ä¡ ÀνÄÀ» ´Þ¼ºÇÏ´Â °ÍÀ» ¸ñÇ¥·Î ÇÑ´Ù. À̸¦ À§ÇÑ ¼¼ °¡Áö ¾Ë°í¸®ÁòÀ» Á¦½ÃÇÏ°í ±× °á°ú¸¦ ½ÇÇèÀ» ÅëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù.
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(English Abstract)
Localization refers to the process of determining positions of nodes in wireless sensor network based on the positions of a few anchor nodes and the measured distances between nodes. This paper concerns the situation in which each anchor node equips a GPS receiver and uses the received GPS location as its position. Majority of localization algorithms developed so far assume that the given positions of anchor nodes are trustable. The accuracy of GPS is very often not good enough to satisfy the requirement of the application. Moreover, there exist some ranging technologies that outperform the GPS in their accuracies. The TWR ranging technology adopted by NanoLoc RF chip, developed by Nanotron, is one of them. In this paper, we focus on how to fuse two types of measurement, the GPS locations and the ranging results, to produce better localization. In other words, instead of using the GPS-received positions as positions of anchors, we try to compensate them using the measured distances between nodes. We propose three different algorithms and analyse their performance through experiments.
Å°¿öµå(Keyword) À§Ä¡ÀνĠ  ¼¾¼­³×Æ®¿öÅ©   Localization   GPS   Sensor network  
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