Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Focal Plane Irradiance from MCF in Millimeter Wave Systems

  • Published : 2004.06.01
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Abstract

Millimeter waves are potentially useful for high resolution ranging and imaging in low optical visibility conditions such as fog and smoke. Also, They are used for wide band communications. However, it is necessary to develop a theoretical and experimental understanding of millimeter wave propagation to assess the performance of millimeter wave systems. The intensity fluctuations and mutual coherence function (MCF) describe atmospheric effects on the millimeter wave propagation. Using the quasi-optical method (QOM), an efficient and practical method was suggested to obtain the intensity distribution of the antenna focal plane from MCF which can be determined using meteorological data.

밀리미터파는 안개 또는 연기등에 의한 시계불량 환경에서의 고해상도 거리 및 영상정보 획득에 사용될수 있으며 광대역 통신에서도 활용되고 있다. 그러나 밀리미터파 시스템의 성능평가를 위해서는 밀리미터파 전파에 관한 이론 및 실험적인 고찰을 필요로 한다. 밀리미터파의 강도변화 및 MCF는 대기현상이 밀리미터파 전파에 미치는 영향을 표시한다. 본 논문에서는 QOM 기법을 이용하여 기상자료에 의하여 얻어질수 있는 MCF로부터 안테나 초점평면에서의 강도분포를 효율적으로 구할수 있는 실질적인 방법을 제안하였다.

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References

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