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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) Àú°¡Çü DSP¸¦ »ç¿ëÇÏ´Â FMCW ·¹ÀÌ´õ ½Åȣ󸮺ÎÀÇ È¿À²Àû ±¸Çö ¹æ¾È
¿µ¹®Á¦¸ñ(English Title) Efficient Implementation of FMCW Radar Signal Processing Parts Using Low Cost DSP
ÀúÀÚ(Author) ¿À¿ìÁø   Woojin Oh  
¿ø¹®¼ö·Ïó(Citation) VOL 20 NO. 04 PP. 0707 ~ 0714 (2016. 04)
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(Korean Abstract)
Â÷·®¿ë ´Éµ¿¾ÈÀü ½Ã½ºÅÛÀº Àü¹æÃæµ¹¹æÁö, Â÷¼±ÀÌÅ» °æº¸, Â÷¼±º¯°æ Áö¿ø µîÀÌ ÀÖÀ¸¸ç ¼ÒÇüÂ÷¿¡ µµÀ﵃ Á¤µµ·Î ´ëÁßÈ­µÇ°í ÀÖ´Ù. ´ëÇ¥ÀûÀÎ ´Éµ¿¾ÈÀü ½Ã½ºÅÛÀÎ FMCW ·¹ÀÌ´õ´Â °¡°Ý °æÀï·Â°ú ¼º´É°³¼±À» À§ÇØ Àü¹æ°ú Ãø¸é¿ë ·¹ÀÌ´õÀÇ ÅëÇÕ°ú À§»ó¹è¿­À̳ª ´ÙÁß ¾ÈÅ׳ªÀÇ Àû¿ëÀÌ ¿¬±¸µÇ°í ÀÖ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ Â÷·®¿ë FMCW·¹ÀÌ´õ ½Ã½ºÅÛÀÇ ½Åȣ󸮺θ¦ Àú°¡ÀÇ DSP·Î ±¸ÇöÇϱâ À§ÇÑ È¿À²ÀûÀÎ ¹æ¾ÈµéÀ» Á¦¾ÈÇÑ´Ù. PWM±â¹ÝÀÇ ¾Æ³¯·Î±× º¯È¯, °è»ê ·®À» ÁÙÀÌ´Â ±Ù»çÈ­ ±â¹ý, È¿À²ÀûÀÎ º¤ÅÍ¿¬»ê µîÀ» Á¦¾ÈÇÏ°í ±¸ÇöÇÏ¿´´Ù. ±¸ÇöµÈ ½Åȣó¸® º¸µå´Â 1.4msÀÇ ÆÞ½º ¹Ýº¹°£°Ý¿¡¼­ 1024±æÀÌÀÇ FFT 󸮰¡ ½Ç½Ã°£ ¼º´ÉÀ» º¸¿´´Ù. ½ÇÁ¦ µµ·Î ½ÇÇè¿¡¼­ 10HzÀÇ °»½ÅÀ²·Î ½Ç½Ã°£ µ¿ÀÛ°ú ¼º´ÉÀ» È®ÀÎÇÏ¿´´Ù.
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(English Abstract)
Active driving safety systems for vehicle, such as the front collision avoidance, lane departure warning, and lane change assistance, have been popular to be adopted to the compact car. For improving performance and competitive cost, FMCW radar has been researched to adopt a phased array or a multi-beam antenna, and to integrate the front and the side radar. In this paper we propose several efficient methods to implement the signal processing module of FMCW radar system using low cost DSP. The pulse width modulation (PWM) based analog conversion, the approximation of time-eating functions, and the adoption of vector-based computation, etc, are proposed and implemented. The implemented signal processing board shows the real-time performance of 1.4ms pulse repetition interval (PRI) with 1024pt-FFT. In real road we verify the radar performance under real-time constraints of 10Hz update time
Å°¿öµå(Keyword) FMCW ·¹ÀÌ´õ   ´Éµ¿Â÷·®¾ÈÀü   Àú°¡Çü ½Åȣ󸮱⠠ ÆÞ½ºÆøº¯Á¶ ÇÊÅÍ   FMCW radar   Active safety system   Low cost DSP   PWM filter  
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