ADC systems for SDR digital front-end

Author

Vun, N. ; Premkumar, A.B.

Author_Institution

Sch. of Comput. Eng., Nanyang Technol. Univ., Singapore

fYear

2005

fDate

14-16 June 2005

Firstpage

359

Lastpage

363

Abstract

This paper describes the various issues related to the analog-to-digital (A-D) conversion process performed in a software defined radio (SDR). An architecture that may be suitable for the digital front end of a multiband, multimode SDR is proposed. Implementation considerations based on current analog-to-digital converter (ADC) technologies are discussed, together with digital signal processing techniques that can be applied to enhance the A-D process. Combination of time-interleaved ADCs with multirate polyphase filters banks to perform the channelization while reducing the matching difficulties encountered in time-interleaved ADC systems is also suggested.

Keywords

analogue-digital conversion; channel allocation; channel bank filters; signal processing; software radio; ADC systems; SDR digital front-end; analog-to-digital conversion process; channelization; digital signal processing techniques; multiband SDR; multimode SDR; multirate polyphase filters banks; software defined radio; time-interleaved ADC; Bandwidth; Circuits; Digital signal processing; Frequency; Multiaccess communication; RF signals; Signal processing; Software radio; Wideband; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 2005. (ISCE 2005). Proceedings of the Ninth International Symposium on

Print_ISBN

0-7803-8920-4

Type

conf

DOI

10.1109/ISCE.2005.1502403

Filename

1502403