• 제목/요약/키워드: Y. Lee

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산악지형에서의 UHF대역 전파손실예측을 위한 LEE모델 적용방안 연구 (A Study on LEE Model Application for Propagation Loss Estimation of UHF band in Mountain Area)

  • 이창원;전용찬;신임섭;김진국
    • 한국군사과학기술학회지
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    • 제18권2호
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    • pp.167-172
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    • 2015

  • In this paper, we have compared some radio propagation models in order to verify the performance of W.C.Y LEE propagation model in mountain area. The four propagation models, which are Okumura-Hata, ITU-R P.525, Egli and W.C.Y. LEE, are analyzed by comparing the differences between measured values and propagation loss estimation values. And a correction method for W.C.Y LEE model is suggested to improve the performance of W.C.Y. LEE model with measured data in mountain area. Simulation results show that the estimation error using W.C.Y LEE model is the lowest among four propagation models. Also, the results show that the corrected W.C.Y LEE model with suggested method improves the performance of propagation loss estimation.

  • https://doi.org/10.9766/KIMST.2015.18.2.167 인용 PDF KSCI

GaInZnO 박막의 전자적 특성

  • 이은경;;최은혜;권혁란;손이슬;이은하;이재학;정재관;이재철;강희재
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2009년도 제36회 동계학술대회 초록집
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    • pp.139.1-139.1
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    • 2009

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