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배열 안테나를 사용한 디지털 비디오 방송용 OFDM 수신기의 성능평가
전제훈,노현민,변건식 東亞大學校附設 情報技術硏究所 2004 情報技術硏究所論文誌 Vol.12 No.1
Orthogonal frequency division multiplexing(OFDM) is becoming the chosen modulation technique for wire and wireless communications with fast data rate because of good spectral effciency and sufficient robustness of fading channel. Digital Video Broadcating is using OFDM to modulate. But Digital Video Broadcating has performance degradation in moving reception according to DOA(Direction of Arrival). The purpose of this paper is to improve reception performance using array antenna in environment with doppler effect.
2차 통계량을 이용한 도래 방향 추정 알고리즘의 성능평가
이민혁,노현민,정대훈,장은영,변건식 東亞大學校附設情報技術硏究所 2005 情報技術硏究所論文誌 Vol.12 No.2
it is needed high quality and big capacity according to fast supply of mobile communication medium. Therefore, adaptive array antenna is actively studied to supply demand. DOA(Direction of Arrival) estimation is important position in adaptive array antenna. The purpose of this paper is to estimate DOA. and compare with the existing algorithm.