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      ADCP에서의 유속 추정 방법 개선에 관한 연구 = Improvement of Current Velocity Estimation Method in an ADCP

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      https://www.riss.kr/link?id=A103629901

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      다국어 초록 (Multilingual Abstract)

      An Acoustic Doppler Current Profiler(ADCP) measures the current velocity and analyzes the degree of turbulence using Doppler effects of ultrasonic waves. Therefore, the autocorrelation or FFT spectrum estimates are obtained for extraction of current velocity in each spatial region. However, if the correlation method does not satisfy the assumption that the return signal spectra are symmetric Gaussian, the large bias errors can occur. Also, the accurate estimation of autocorrelation or FFT spectrum is difficult due to the short acquisition interval when the rapid changes of current velocity occur. Thus, in this paper, the estimation method of the autoregressive spectrum peak is suggested for the accurate current velocity measurement of both symmetric and asymmetric spectra. It is shown that estimation quality can be improved using the suggested method comparing with the conventional methods. Many return signals under the various environment are simulated and the results are compared and analyzed for evaluation of the suggested method.
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      An Acoustic Doppler Current Profiler(ADCP) measures the current velocity and analyzes the degree of turbulence using Doppler effects of ultrasonic waves. Therefore, the autocorrelation or FFT spectrum estimates are obtained for extraction of current v...

      An Acoustic Doppler Current Profiler(ADCP) measures the current velocity and analyzes the degree of turbulence using Doppler effects of ultrasonic waves. Therefore, the autocorrelation or FFT spectrum estimates are obtained for extraction of current velocity in each spatial region. However, if the correlation method does not satisfy the assumption that the return signal spectra are symmetric Gaussian, the large bias errors can occur. Also, the accurate estimation of autocorrelation or FFT spectrum is difficult due to the short acquisition interval when the rapid changes of current velocity occur. Thus, in this paper, the estimation method of the autoregressive spectrum peak is suggested for the accurate current velocity measurement of both symmetric and asymmetric spectra. It is shown that estimation quality can be improved using the suggested method comparing with the conventional methods. Many return signals under the various environment are simulated and the results are compared and analyzed for evaluation of the suggested method.

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      참고문헌 (Reference)

      1 F. Prieur, "Theoretical improvements when using the second harmonic signal in acoustic doppler current profilers" 38 (38): 275-284, 2013

      2 D. S. Zrnic, "Spectral moment estimates from correlated pulse-pairs" 13 (13): 344-354, 1977

      3 M. Palodichuk, "Resource mapping at tidal energy sites" 38 (38): 433-446, 2013

      4 M. Postacchini, "Lagrangian observations of waves and currents form the river drifter" 41 (41): 94-104, 2016

      5 C. Chi, "Design of optimal multiple phase-coded signals for broadband acoustical doppler current profiler" 41 (41): 302-317, 2016

      6 M. Kaveh, "An empirical investigation of the properties of the autoregressive spectral estimator" 22 (22): 313-323, 1976

      7 L. Xu, "A solution to velocity ambiguity of broad-band acoustic doppler current profiler" 1-5, 2015

      8 S. L. Marple, Jr, "A new autoregressive spectrum analysis algorithm" 28 (28): 441-454, 1980

      1 F. Prieur, "Theoretical improvements when using the second harmonic signal in acoustic doppler current profilers" 38 (38): 275-284, 2013

      2 D. S. Zrnic, "Spectral moment estimates from correlated pulse-pairs" 13 (13): 344-354, 1977

      3 M. Palodichuk, "Resource mapping at tidal energy sites" 38 (38): 433-446, 2013

      4 M. Postacchini, "Lagrangian observations of waves and currents form the river drifter" 41 (41): 94-104, 2016

      5 C. Chi, "Design of optimal multiple phase-coded signals for broadband acoustical doppler current profiler" 41 (41): 302-317, 2016

      6 M. Kaveh, "An empirical investigation of the properties of the autoregressive spectral estimator" 22 (22): 313-323, 1976

      7 L. Xu, "A solution to velocity ambiguity of broad-band acoustic doppler current profiler" 1-5, 2015

      8 S. L. Marple, Jr, "A new autoregressive spectrum analysis algorithm" 28 (28): 441-454, 1980

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      학술지 이력

      학술지 이력
      연월일 이력구분 이력상세 등재구분
      2027 평가예정 재인증평가 신청대상 (재인증)
      2021-01-01 평가 등재학술지 유지 (재인증) KCI등재
      2018-01-01 평가 등재학술지 선정 (계속평가) KCI등재
      2017-12-01 평가 등재후보로 하락 (계속평가) KCI등재후보
      2013-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2011-11-23 학술지명변경 외국어명 : THE JOURNAL OF The KOREAN Institute Of Maritime information & Communication Science -> Journal of the Korea Institute Of Information and Communication Engineering KCI등재
      2011-11-16 학회명변경 영문명 : International Journal of Information and Communication Engineering(IJICE) -> The Korea Institute of Information and Communication Engineering KCI등재
      2011-11-14 학회명변경 한글명 : 한국해양정보통신학회 -> 한국정보통신학회
      영문명 : 미등록 -> International Journal of Information and Communication Engineering(IJICE)
      KCI등재
      2010-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2008-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2005-01-01 평가 등재학술지 선정 (등재후보2차) KCI등재
      2004-01-01 평가 등재후보 1차 PASS (등재후보1차) KCI등재후보
      2002-07-01 평가 등재후보학술지 선정 (신규평가) KCI등재후보
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      학술지 인용정보

      학술지 인용정보
      기준연도 WOS-KCI 통합IF(2년) KCIF(2년) KCIF(3년)
      2016 0.23 0.23 0.27
      KCIF(4년) KCIF(5년) 중심성지수(3년) 즉시성지수
      0.24 0.22 0.424 0.11
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