• Title/Summary/Keyword: Earth Sciences

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Eigenray identification with wavelet packets (웨이브렛 패킷을 이용한 고유음선 식별)

  • Cho Hwanrae;Oh Suntaek;Na Jungyul
    • Proceedings of the Acoustical Society of Korea Conference
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    • spring
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    • pp.425-428
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    • 2002
  • 본 논문에서는 해양에서 다중경로를 통하여 수신되는 음파의 도달시간을 정확히 파악하기 위한 방법을 제시하였다. 음파 도달 시간을 파악하기 위한 방법으로는 정합 필터 방법 및 웨이브렛 방법을 도입하였으며 각각 모의 수신신호 및 실관측 수신신호에 대해 적용하여 식별 성능을 분석하였다.

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Application of JERS-1 SAR Interferometry to the Deformation of Mt. Baekdu Stratovolcano

  • Kim, S.W.;Jeong, H.S.;Won, J.S.
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1073-1075
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    • 2003
  • We apply the radar interferometry technique to JERS-1 SAR data sets for detection of slow surface deformation occurred in Mt. Baekdu for a 6-year period (from 1992 to 1998). A series of interferograms has been constructed, and they indicated slow uplift deformation around the volcano. However, it is not conclusive because most interferometric fringes correlate with topographic elevation. It is necessary to remove trophospheric effects in the future works.

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Generation of High Resolution DEM of Jeju Island

  • Lee, Chang-Won;Kim, Duk-Jin;Moon, Wooil M.
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.831-833
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    • 2003
  • We have evaluated the accuracy of digital elevation models of Jeju island generated with three different sensors, NASA JPL TOPSAR, JERS-1 SAR, KOMPSAT-1 EOC using Interferometric SAR and stereo photogrammetry. Characteristics and limitations of each method are described.

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