TY - GEN
T1 - 1/2fs direct RF under sampling reception in different RX channels
AU - Banda, Daliso
AU - Wada, Osamu
AU - Ta, Tuan Thanh
AU - Kameda, Suguru
AU - Suematsu, Noriharu
AU - Takagi, Tadashi
AU - Tsubouchi, Kazuo
N1 - Publisher Copyright:
Copyright 2014 IEICE.
PY - 2014/3/25
Y1 - 2014/3/25
N2 - We proposed an RF under sampling technique that allows the use of half the sampling frequency than is conventionally required for a single channel system. In this paper, a fs design methodology for multi-channel system is described and the application of this technique to the reception of signals in different channels is demonstrated. For the conventional technique, fs is constant even if the channel of reception changes, but in our proposed technique, fs is changed according to the channel's location in the system bandwidth. To validate the proposed fs design methodology, measurement of a front-end using the conventional and the proposed techniques was performed. The measured SNR for the proposed technique for channel one, two and three were 30.4 dB, 28.0 dB and 27.2 dB respective. Using QPSK modulation the EVM was measured to be -23.5 dB, -23.4 dB and -23.6 dB for Channel one, two and three respectively.
AB - We proposed an RF under sampling technique that allows the use of half the sampling frequency than is conventionally required for a single channel system. In this paper, a fs design methodology for multi-channel system is described and the application of this technique to the reception of signals in different channels is demonstrated. For the conventional technique, fs is constant even if the channel of reception changes, but in our proposed technique, fs is changed according to the channel's location in the system bandwidth. To validate the proposed fs design methodology, measurement of a front-end using the conventional and the proposed techniques was performed. The measured SNR for the proposed technique for channel one, two and three were 30.4 dB, 28.0 dB and 27.2 dB respective. Using QPSK modulation the EVM was measured to be -23.5 dB, -23.4 dB and -23.6 dB for Channel one, two and three respectively.
KW - Direct RF sampling
KW - Multi-mode receiver
KW - RF bandpass sampling
KW - Sampling mixer
KW - Software radio
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M3 - Conference contribution
AN - SCOPUS:84949086285
T3 - 2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014
SP - 944
EP - 946
BT - 2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 Asia-Pacific Microwave Conference, APMC 2014
Y2 - 4 November 2014 through 7 November 2014
ER -