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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 통신위성우주산업연구회 Joint Conference on Satellite Communications Joint Conference on Satellite Communications 2001년
- 발행연도
- 2001.1
- 수록면
- 281 - 286 (6page)
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초록· 키워드
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A bi-directional multimedia satellite communication system has been proposed to offer high-speed Internet access links. For efficient use of frequency bandwidth and transponder power, this system employs super-posed transmission scheme, which Spread Spectrum (SS) signals are superposed on the high-speed TDM signal. In order to realize this scheme, two novel technologies are introduced. They are the adaptive interference cancellation technique, and the burst mode SS demodulation technique. This paper describes the results of a system performance evaluation that uses prototypes. The measured results demonstrate that the adaptive interference canceler can eliminate interference in spite of amplitude fluctuation, and also demonstrate that the burst-mode SS demodulator can demodulate without degradation, even if there is carrier frequency error.
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