∑ΔADC with fractional sample rate conversion for software defined radio receiver

Akira Tanaka, Mamiko Inamori, Yukitoshi Sanada

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

An analog-to-digital converter (∑ΔADC) in a software defined radio (SDR) receiver must be able to support the specifications of various wireless standards. It should also work with the low power supply voltage of CMOS circuits. A ∑ΔADC is one of the solutions for the SDR receiver. However, the power consumption of the circuits, such as a lowpass filter (LPF) and a decimator after the modulator is large due to the high sampling speed. On the other hand, since a different wireless communication standard has a different master clock rate, it is necessary to provide the clock rate suitable for each standard. As a solution for the problem, direct insertion/deletion based sample rate conversion (SRC) has been proposed. Nevertheless, in order to apply this method to the ∑ΔADC, the problem of the high clock speed in the circuits of the LPF after modulator remains. In this paper, a novel ∑ΔADC with fractional SRC is proposed. In the proposed scheme, SRC and filtering are combined. By filtering and decimating the output of the modulator in parallel with Q transversal filters the clock speed of the circuits of the SRC and the LPF can be reduced P times for Q/P SRC.

本文言語English
ホスト出版物のタイトルProceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011
ページ151-155
ページ数5
DOI
出版ステータスPublished - 2011
イベント2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011 - Osaka, Japan
継続期間: 2011 6 12011 6 3

出版物シリーズ

名前Proceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011

Other

Other2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011
国/地域Japan
CityOsaka
Period11/6/111/6/3

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 通信

フィンガープリント

「∑ΔADC with fractional sample rate conversion for software defined radio receiver」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル