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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) À¯¼Ó ÃøÁ¤ ·¹ÀÌ´Ù¿¡¼­ÀÇ µµÇ÷¯ ÁÖÆļö ÃßÁ¤¿¡ °üÇÑ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) A Study on Estimation of Doppler Frequency in a Current Velocity Measurement Radar
ÀúÀÚ(Author) ÀÌÁ¾±æ   Jonggil Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 17 NO. 07 PP. 1551 ~ 1557 (2013. 07)
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(Korean Abstract)
¼öÀÚ¿ø °ü¸®¸¦ À§ÇÏ¿© È°¿ëµÇ°í ÀÖ´Â ·¹ÀÌ´Ù ¼¾¼­´Â µµÇ÷¯ ÁÖÆļö¸¦ ÃßÁ¤ÇÔÀ¸·Î¼­ Ç¥¸é À¯¼ÓÀ» ÃøÁ¤ÇÑ´Ù. µû¶ó¼­ µµÇ÷¯ ÁÖÆļö ÃßÁ¤Ä¡¿¡¼­ÀÇ ³ôÀº ½Å·Ú¼º ¹× Á¤È®µµ°¡ ¿ä±¸µÈ´Ù. ±×·¯³ª À¯¼Ó °ü·Ã µµÇ÷¯ ½ºÆåÆ®·³Àº ÃøÁ¤ ȯ°æ ¹× ±â»ó »óÅ¿¡ µû¶ó ¸Å¿ì ´Ù¾çÇÑ ÇüŸ¦ ³ªÅ¸³¾ ¼ö ÀÖ´Ù. µû¶ó¼­ ÇöÀç ·¹ÀÌ´Ù ¼¾¼­¿¡¼­ »ç¿ëµÇ´Â ±âÁ¸ÀÇ À¯¼ÓÁ¤º¸ ÃßÃâ ¾Ë°í¸®ÁòÀÇ Á¤È®µµ ¹× ½Å·Ú¼º¿¡ ½É°¢ÇÑ ¹®Á¦°¡ ¹ß»ýÇÒ ¼ö ÀÖ´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­´Â ±âÁ¸ÀÇ ¹æ¹ýÀ» °³¼±ÇÒ ¼ö ÀÖ´Â µµÇ÷¯ ½ºÆåÆ®·³ ÷µÎÄ¡ ÁÖÆļö ÃßÁ¤¿¡ ÀÇÇÑ À¯¼Ó Á¤º¸ ÃßÃâ ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈµÈ ¹æ¹ýÀº ±âÁ¸ ¹æ¹ý¿¡ ºñÇÏ¿© ´õ Á¤È®ÇÑ À¯¼ÓÀÇ ÃøÁ¤ÀÌ °¡´ÉÇÔÀ» º¸¿©ÁØ´Ù.
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(English Abstract)
A current velocity measurement radar estimates Doppler frequencies to extract the corresponding surface velocity information. Therefore, it is required to maintain the high degree of reliability and accuracy of Doppler frequency estimates. However, Doppler spectra of water surface return echoes can have very widely varying shapes according to measurement environments and weather conditions. Therefore, serious problems may arise in maintaining the reliability and accuracy of conventional velocity estimating algorithm in a radar sensor. Therefore, in this paper, a newly suggested algorithm is proposed for improvement using estimation of peak Doppler frequencies. The proposed method shows that the more accurate velocity measurement can be possible comparing with the conventional one.
Å°¿öµå(Keyword) °¡¿ì½Ã¾È µµÇ÷¯ ½ºÆåÆ®·³   À¯¼Ó ÃøÁ¤   ÷µÎÄ¡ ÃßÁ¤   µµÇ÷¯ ÁÖÆļö ÃßÁ¤   Gaussian Doppler spectrum   Current velocity measurement   Peak estimation   Doppler frequency estimation  
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