Direct RF Under Sampling Reception Method with Lower Sampling Frequency
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概要
- 論文の詳細を見る
RF undersampling receiver topology offers many advantages; these include software re-configurability, low power consumption and compact circuits. The main advantage comes from the fact that a sampling frequency lower than the RF carrier is utilized. But when applied to a Ku-band VSAT system with 500MHz bandwidth, a minimum sampling frequency of 1GHz is required. Based on technology currently commercially available this makes it difficult to implement a low power portable device for such a system using this conventional RF under sampling technique. In this paper we propose a direct RF under sampling reception method that halves the sampling frequency required. By using SNR and EVM as performance indexes, the proposed technique has been evaluated by simulation and experimentation. The evaluation results are also presented and show that the proposed technique can achieve the same performance as conventional RF under sampling but at half the sampling frequency.
- 一般社団法人電子情報通信学会の論文
- 2013-05-16
著者
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TA Tuan
Research Institute of Electrical Communication, Tohoku University
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Ta Tuan
Research Institute Of Electrical Communication Tohoku University
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SUEMATSU Noriharu
Research Institute of Electric Communication (RIEC), Tohoku University
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TANIFUJI Shoichi
Research Institute of Electric Communication (RIEC), Tohoku University
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TSUBOUCHI Kazuo
Research Institute of Electric Communication (RIEC), Tohoku University
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TAKAGI Tadashi
Research Institute of Electrical Communication, Tohoku University
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TAKAGI Tadashi
Research Institute of Electric Communication (RIEC), Tohoku University
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KAMEDA Suguru
Research Institute of Electrical Communication, Tohoku University
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KAMEDA Suguru
Research Institute of Electric Communication (RIEC), Tohoku University
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BANDA Daliso
Research Institute of Electrical Communication, Tohoku University
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WADA Osamu
Research Institute of Electrical Communication, Tohoku University
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