1/2fs direct RF under sampling reception in different RX channels

Daliso Banda; Osamu Wada; Tuan Thanh Ta; Suguru Kameda; Noriharu Suematsu; Tadashi Takagi; Kazuo Tsubouchi

1/2f_s direct RF under sampling reception in different RX channels

Daliso Banda, Osamu Wada, Tuan Thanh Ta, Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi

Broadband Engineering Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

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 f_s 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, f_s is constant even if the channel of reception changes, but in our proposed technique, f_s is changed according to the channel's location in the system bandwidth. To validate the proposed f_s 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.

Original language	English
Title of host publication	2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	944-946
Number of pages	3
ISBN (Print)	9784902339314
Publication status	Published - 2014 Mar 25
Event	2014 Asia-Pacific Microwave Conference, APMC 2014 - Sendai, Japan Duration: 2014 Nov 4 → 2014 Nov 7

Other

Other	2014 Asia-Pacific Microwave Conference, APMC 2014
Country/Territory	Japan
City	Sendai
Period	14/11/4 → 14/11/7

Keywords

Direct RF sampling
Multi-mode receiver
RF bandpass sampling
Sampling mixer
Software radio

ASJC Scopus subject areas

Computer Networks and Communications
Hardware and Architecture
Electrical and Electronic Engineering

Cite this

1/2f_s direct RF under sampling reception in different RX channels. / Banda, Daliso; Wada, Osamu; Ta, Tuan Thanh; Kameda, Suguru; Suematsu, Noriharu; Takagi, Tadashi; Tsubouchi, Kazuo.

2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 944-946 7067885.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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abstract = "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.",

keywords = "Direct RF sampling, Multi-mode receiver, RF bandpass sampling, Sampling mixer, Software radio",

author = "Daliso Banda and Osamu Wada and Ta, {Tuan Thanh} and Suguru Kameda and Noriharu Suematsu and Tadashi Takagi and Kazuo Tsubouchi",

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AU - Banda, Daliso

AU - Wada, Osamu

AU - Ta, Tuan Thanh

AU - Kameda, Suguru

AU - Suematsu, Noriharu

AU - Takagi, Tadashi

AU - Tsubouchi, Kazuo

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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