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논문 기본 정보

자료유형
학술저널
저자정보
Imaizumi, Yutaka (NTT Access Network Service Systems Laboratories, NTT Corporation) Ohata, Kohei (NTT Access Network Service Systems Laboratories, NTT Corporation) Ueba, Masazumi (NTT Access Network Service Systems Laboratories, NTT Corporation)
저널정보
통신위성우주산업연구회 Joint Conference on Satellite Communications Joint Conference on Satellite Communications 2006년
발행연도
2006.1
수록면
179 - 184 (6page)

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We propose a method of simulating satellite link availability that uses three dimensional map data. Our method calculates the satellite signal reception level at a reception point by taking into account diffracted and/or reflected waves as well as direct waves. This paper identifies simulation parameters that enable calculations that show good agreement with measured satellite signal reception levels. Our work further shows the following. 1) To calculate satellite signal levels accurately it is necessary to take into consideration diffracted and reflected waves as well as direct waves. 2) The optimum reflection coefficient of building walls and roads was 10 dB for this evaluation environment. 3) The radius of the observation area where the reflected wave was calculated was about 150 m. This choice of area was made considering CPU time required to calculate one reception point. In future work the optimum radius will be determined by evaluating the accuracy of simulation results. The results confirmed that our satellite link availability analysis can effectively predict link conditions.

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