도심지 전파환경에서의 다중경로 수신전자파의 특성해석
Analysis of the Characteristics of Multi-path Receiving Waves in the Urban Area Environment
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참고문헌
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초록
파추적법을 이용하여 위성이동통신 서비스에서의 전파환경 특성을 예측하고, 새로운 신호 환경에서의 채널모델링방법을 제시한다. 도심지역의 전파특성을 예측하기 위해, 인공구조물 및 자연지형을 완전도체로 이루어진 사각형으로 모델링하고, 이들 구조물에 수신자가 인접해 있을 때, 위성으로부터 수신자에게 도달하는 1차파 및 2차파 등 다중경로를 고려하여 직접파와 반사파, 회절파에 의한 수신전계를 계산한다. 수신전계의 계산에 필요한 반사파, 회절파 및 표면회절파는 UTD해석법에 의하여 구해진다. 이들 결과를 분석함으로써, 도심지역에서의 전파 전달 특성을 분석한다.
Abstract
In this paper, I present a way to predict the propagative environment in the communications satellite by the ray tracing technique and propose a new advanced channel modeling method. In order to predict the propagational characteristics in the urban area, we (or I) make the model of buildings and configurations of the ground with squares consisting complete conductors. When a receiver is adjacent to these structure, I calculate electric field strength received by considering the multipath from the satellite to the receiver. The reflected, the diffracted and the surface diffracted waves for calculation of received electric field are obtained by UTD (Uniform Theory of Diffraction). I propose the method to understand wave propagational properties in the urban area by analyzing the results of the computation.
참고문헌 (11)
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