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- W2080711704 abstract "본 논문에서는 디지털 고주파 기억 장치(DRFM: Digital RF Memory)의 스퓨리어스 신호 저감 방법에 대하여 제안하였다. 스퓨리어스 특성은 디지털 고주파 기억 장치의 성능을 결정짓는 주요 요소이다. 제안한 방법은 입력되는 IF 신호에 랜덤 위상값을 가지는 LO 신호를 혼합하여 샘플링하여 스퓨리어스 신호를 저감하였으며, 랜덤 위상을 가지는 LO 신호는 직접 디지털 합성기(DDS: Direct Digital Synthesizer)의 고속 위상 제어 특성을 이용하여 생성하였다. 제안한 방법을 적용하여 5~10 dB의 스퓨리어스 특성이 향상됨을 확인하였다. In this paper, a method for reduction of spurious signal in Digital RF Memory(DRFM) is proposed. Spurious response is a major performance issue of DRFM. This method is based on mixing a random phase LO signal into input IF signal and sampling it. The random phase LO signal is generated by high speed phase shifting characteristic of Direct Digital Synthesizer(DDS). Through this technique, we achieved an enhancement of 5~10 dB of spurious response." @default.
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- W2080711704 date "2011-07-31" @default.
- W2080711704 modified "2023-09-27" @default.
- W2080711704 title "A Method for Reduction of Spurious Signal in Digital RF Memory" @default.
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- W2080711704 doi "https://doi.org/10.5515/kjkiees.2011.22.7.669" @default.
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