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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 :

ÇѱÛÁ¦¸ñ(Korean Title) Ç︮ÄßÅÍ¿¡ ÀåÂøµÈ ȸÀü ¾ÈÅ׳ª¸¦ ÀÌ¿ëÇÑ Âø·úÁöÇüÀÇ À̹ÌÁö »ý¼º ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Rotational Antenna based Clutter Imaging Algorithm in Helicopter Landing Mode
ÀúÀÚ(Author) ¹èâ½Ä   ÀüÇö¹«   ±èÀçÇР  ¾çÈƱ⠠ Chang-Sik Bae   Hyeon-Mu Jeon   Jae-Hak Kim   Hoon-Gee Yang  
¿ø¹®¼ö·Ïó(Citation) VOL 20 NO. 10 PP. 1860 ~ 1866 (2016. 10)
Çѱ۳»¿ë
(Korean Abstract)
Çï±â »ç°íÀÇ ´ëºÎºÐÀº ½Ã¾ß°¡ Á¦ÇÑµÈ »óȲ¿¡¼­ Âø·ú ½Ã ±¸Á¶¹°°úÀÇ Ãæµ¹¿¡ ÀÇÇÑ »ç°í·Î ¾ÈÀüÇÑ ÁÖÇàÀ» À§ÇØ ·¹ÀÌ´õ¿Í °°Àº º¸Á¶ Àåºñ°¡ ¿ä±¸µÈ´Ù. º» ³í¹®¿¡¼­´Â ȸÀüÇÏ´Â ¾ÈÅ׳ª¸¦ ÀåÂøÇÑ Çï±â ·¹ÀÌ´õ°¡ Âø·úÇÏ´Â °úÁ¤¿¡¼­ °íÁ¤ Ŭ·¯ÅÍ¿¡ ´ëÇÑ °Å¸®-¹æÀ§°¢ À̹ÌÁö¸¦ ¾ò´Â ¾Ë°í¸®ÁòÀ» Á¦½ÃÇÑ´Ù. µ¿ÀÏ °Å¸®¿¡ À§Ä¡ÇÑ °¢°¢ÀÇ Å¬·¯ÅÍ ÆÐÄ¡·ÎºÎÅÍ ¼ö½ÅµÇ´Â ½ÅÈ£¸¦ ¸ðµ¨¸µÇÏ°í Ŭ·¯ÅÍ Æ¯¼º ¹× µµÇ÷¯ Ư¼ºÀ» ºÐ¼®ÇÑ´Ù. ºÎ¿±(side lobe) ¼ººÐÀ» ¾ïÁ¦ÇÏ°í ÁÖ ºö(main lobe) ½ÅÈ£¼ººÐÀ» ¾ò±â À§ÇÑ ÇÊÅͱ¸Á¶¸¦ ¼³°èÇÏ°í ÀÌ °úÁ¤¿¡¼­ ¹ß»ýÇÏ´Â ¹®Á¦Á¡¿¡ ´ëÇÑ ÇØ°áÃ¥À» Á¦½ÃÇÑ´Ù. ¸¶Áö¸·À¸·Î ½Ã¹Ä·¹À̼ǿ¡ ÀÇÇØ °Å¸®-¹æÀ§°¢ µµ¸ÞÀο¡¼­ÀÇ °¡»óÀÇ ÁöÇü ½Ã³ª¸®¿À¸¦ »ý¼ºÇÑ ÈÄ Á¦½ÃÇÑ ¾Ë°í¸®ÁòÀÇ ¼º´ÉÀ» °ËÁõÇÑ´Ù.
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(English Abstract)
Helicopter-related collision accidents with structures mostly occur at landing, especially in a limited visibility environment, which necessitates some secondary equipment like a radar that can generate stationary clutter image. In this paper, we propose an algorithm that makes an image of stationary ground clutter in two dimensional range and azimuth angle domain. We present a mathematical model for the received signals from each clutter patch in the iso range ring and analyze their clutter and Doppler characteristics, assuming that a helicopter-borne radar has a rotational antenna. We propose a filter structure, which suppresses side lobe signal components while extracting a main lobe signal component, and suggest a solution for a problem stemmed from the filtering process. Finally, by conducting a simulation we show the performance of the suggested imaging algorithm on a two dimensional virtual scenario of the topographic clutter.
Å°¿öµå(Keyword) Çï±â ÀåÂø   ȸÀü ¾ÈÅ׳ª   Çï±â Âø·ú   Ŭ·¯ÅÍ À̹ÌÁö   Helicopter-borne   Rotational antenna   Helicopter landing   Clutter Image  
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