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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) Â÷·®¿ë FMCW ·¹ÀÌ´õÀÇ Å½Áö ¼º´É ºÐ¼® ¹× ½Åȣ󸮺Π°³¹ß
¿µ¹®Á¦¸ñ(English Title) The analysis of the detection probability of FMCW radar and implementation of signal processing part
ÀúÀÚ(Author) ±è»óµ¿   ÇöÀ¯Áø   ÀÌÁ¾ÈÆ   ÃÖÁØÇõ   ¹ÚÁ¤È£   ¹Ú»óÇö   Sang-Dong Kim   Eugin Hyun   Jong-Hun Lee   Jun-Hyeok Choi   Jung-Ho Park   Sang-Hyun Park  
¿ø¹®¼ö·Ïó(Citation) VOL 14 NO. 12 PP. 2628 ~ 2635 (2010. 12)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â Â÷·®¿ë FMCW(Frequency Modulated Continuous Wave) ·¹ÀÌ´õÀÇ µµÇ÷¯ ÁÖÆļö¿Í ¾Æ³¯·Î±×-µðÁöÅÐ º¯È¯±â ºñÆ® ¼ö¿¡ µû¸¥ ŽÁö ¼º´É ºÐ¼® ¹× ½Åȣ󸮺Π°³¹ßÀ» ÁøÇàÇÏ°íÀÚ ÇÑ´Ù. ¼º´É Æò°¡¸¦ À§ÇÑ FMCW ·¹ÀÌ´õÀÇ ½Ã½ºÅÛ ¸ðµ¨Àº ¼Û½ÅºÎ¿Í ¼ö½ÅºÎ·Î ±¸¼ºµÇ¾î ÀÖÀ¸¸ç ä³ÎÀº °¡¿ì½Ã¾È ÀâÀ½ ȯ°æÀ» »ç¿ëÇÑ´Ù. À̷аú ½Ã¹Ä·¹À̼ÇÀ» ÅëÇؼ­ ½Ã½ºÅÛ ¸ðµ¨À» °ËÁõÇÑ´Ù. ¼ö½ÅºÎ¿¡¼­´Â ¼ö½Å ½ÅÈ£¿Í ±âÁØ ½ÅÈ£»çÀÌÀÇ ºÎÁ¤ÇÕÀ¸·Î ÀÎÇÑ ÁÖÆļö ¿ÀÂ÷°¡ ¹ß»ýÇÏ°Ô µÈ´Ù. 75cmÀÇ ºÐÇشɸ¦ °®´Â FMCW ·¹ÀÌ´õ¿¡¼­ µµÇ÷¯ ÁÖÆļö°¡ ¾à 38KHzÀÌÇÏÀÎ °æ¿ì ŽÁö ¼º´ÉÀÇ ¿­È­°¡ ¹ß»ýÇÏÁö ¾ÊÀ½À» ¾Ë ¼ö ÀÖ´Ù. ¾Æ³¯·Î±×-µðÁöÅÐ º¯È¯±â ºñÆ®¿¡ µû¸¥ ŽÁö ¼º´ÉÀº 6ºñÆ®°¡ ÃÖ¼ÒÀÇ ºñÆ®·Î °áÁ¤µÉ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ´Ù. ±×¸®°í FPGA¸¦ ÀÌ¿ëÇÏ¿© µðÁöÅÐ ¼Û½Å ÆÄÇü ¹ß»ý±â¸¦ À§ÇÑ ÁýÀû µðÁöÅÐ ½Åµð»çÀÌÀú(Direct Digital Synthesis) ĨÀ» ±â¹ÝÇÑ FMCW ·¹ÀÌ´õ ½Åȣ󸮺θ¦ ¼³°è ¹× ±¸ÇöÀ» ÁøÇàÇÑ´Ù.
¿µ¹®³»¿ë
(English Abstract)
This paper analyzes the detection probability of FMCW (Frequency Modulated Continuous Wave) radar based on Doppler frequency and analog-digital converter bit and designs and implements signal processing part of FMCW radar. For performance evaluation, the FMCW radar system consists of a transmitted part and a received part and uses AWGN channel. The system model is verified through analysis and simulation. Frequency offset occurs in the received part caused by the mismatching between the received signal and the reference signal. In case of Doppler frequency less than about 38KHz, performance degradation of detection does not occur in FMCW radar with 75cm resolution The analog-digital converter needs at least 6 bit in order not to degrade the detection probability. And, we design and implement digital signal processing part based on DDS chip of digital transmitted signal generator for FMCW radar.
Å°¿öµå(Keyword) FMCW   ·¹ÀÌ´õ   µµÇ÷¯ ÁÖÆļö   ¾Æ³¯·Î±×-µðÁöÅÐ º¯È¯±â   ½Åȣ󸮺Π  FMCW   radar   Doppler frequency   analog-digital converter   digital signal processing  
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