Publication: Pilot-Based TI-ADC Mismatch Error Calib...
Master data
Title: | Pilot-Based TI-ADC Mismatch Error Calibration for IR-UWB Receivers |
Subtitle: | |
Abstract: | In this work, we first provide an overview of the state of the art in mismatch error estimation and correction for time-interleaved analog to digital converters (TI-ADCs). Then, we present a novel pilot-based on-line adaptive timing mismatch error estimation approach for TI-ADCs in the context of an impulse radio ultra wideband (IR-UWB) receiver with correlation-based detection. We introduce the developed method and derive the expressions for both additive white Gaussian noise (AWGN) and Rayleigh multipath fading (RMPF) channels. We also derive a lower bound on the required ADC resolution to attain a certain estimation precision. Simulations show the effectiveness of the technique when combined with an adequate compensator. We analyze the estimation error behavior as a function of signal to noise ratio (SNR) and investigate the ADC performance before and after compensation. While all mismatches combined cause the effective number of bits (ENOB) to drop to 3 bits and to 6 bits when considering only timing mismatch, estimation and correction of these errors with the proposed technique can restore a close to ideal behavior. We also show the performance loss at the receiver in terms of bit error rate (BER) and how compensation is able to significantly improve performance. |
Keywords: |
Publication type: | Article in journal (Authorship) |
Publication date: | 05.06.2019 (Online) |
Published by: |
IEEE Access
IEEE Access
(
IEEE;
)
to publication |
Title of the series: | - |
Volume number: | 7 |
Issue: | - |
First publication: | Yes |
Version: | - |
Page: | pp. 74340 - 74350 |
Versionen
Keine Version vorhanden |
Publication date: | 05.06.2019 |
ISBN (e-book): | - |
eISSN: | 2169-3536 |
DOI: | http://dx.doi.org/10.1109/ACCESS.2019.2921091 |
Homepage: | https://ieeexplore.ieee.org/document/8731991 |
Open access |
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Authors
Christian Schmidt
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José L. Figueroa
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Juan E. Cousseau
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Andrea M. Tonello (internal) |
Assignment
Organisation | Address | ||||
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Fakultät für Technische Wissenschaften
Institut für Vernetzte und Eingebettete Systeme
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AT - 9020 Klagenfurt am Wörthersee |
Categorisation
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Research Cluster | No research Research Cluster selected |
Citation index |
Information about the citation index: Master Journal List
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Peer reviewed |
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Publication focus |
Classification raster of the assigned organisational units:
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working groups |
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Cooperations
Organisation | Address | ||
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Universidad Nacional del Sur
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AR
Bahia Blanca |
Research activities
Projects: | No related projects |
Publications: | No related publications |
Events: | No related events |
Lectures: | No related lectures |