Towards time-quantized random sampling for multistandard receiver baseband stage

Asma Maalej, Manel Ben-Romdhane, Chiheb Rebai, Adel Ghazel, Patricia Desgreys, Patrick Loumeau

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, the ability of time-quantized random sampling (TQ-RS) to reduce aliases is discussed. Authors present simulation results of power spectrum density of a time-quantized random sampled signal. The oversampling ratio impact on alias reduction is outlined. TQ-RS application is proposed for baseband stage design of software defined radio receiver supporting the GSM, the UMTS and the IEEE802.11a standards. Obtained design results are compared to design results considering the uniform sampling. This comparison shows that the anti-aliasing filter order has been reduced from 4 to 3 and the maximal gain of automatic gain control is decreases with at least 12 dB. A test setup for data acquisition system with TQ-RS is detailed. Validation results confirm the targeted performances in terms of signal-to-noise ratio (SNR) of TQ-RS acquisition. The SNR is equal to 53.13 dB in TQ-RS compared to 54 dB in uniform sampling.

Original languageEnglish
Title of host publication2011 International Conference on Microelectronics, ICM 2011
DOIs
Publication statusPublished - 1 Dec 2011
Externally publishedYes
Event2011 23rd International Conference on Microelectronics, ICM 2011 - Hammamet, Tunisia
Duration: 19 Dec 201122 Dec 2011

Publication series

NameProceedings of the International Conference on Microelectronics, ICM

Conference

Conference2011 23rd International Conference on Microelectronics, ICM 2011
Country/TerritoryTunisia
CityHammamet
Period19/12/1122/12/11

Keywords

  • Time-quantized random sampling
  • baseband stage
  • multistandard receiver

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