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Multiple parameter estimation with quantized channel output

  • Technical University of Munich
  • Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)

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

105 Scopus citations

Abstract

We present a general problem formulation for optimal parameter estimation based on quantized observations, with application to antenna array communication and processing (channel estimation, time-of-arrival (TOA) and direction-ofarrival (DOA) estimation). The work is of interest in the case when low resolution A/D-converters (ADCs) have to be used to enable higher sampling rate and to simplify the hardware. An Expectation-Maximization (EM) based algorithm is proposed for solving this problem in a general setting. Besides, we derive the Cram er-Rao Bound (CRB) and discuss the effects of quantization and the optimal choice of the ADC characteristic. Numerical and analytical analysis reveals that reliable estimation may still be possible even when the quantization is very coarse.

Original languageEnglish
Title of host publication2010 International ITG Workshop on Smart Antennas, WSA 2010
Pages143-150
Number of pages8
DOIs
StatePublished - 2010
Event2010 International ITG Workshop on Smart Antennas, WSA 2010 - Bremen, Germany
Duration: 23 Feb 201024 Feb 2010

Publication series

Name2010 International ITG Workshop on Smart Antennas, WSA 2010

Conference

Conference2010 International ITG Workshop on Smart Antennas, WSA 2010
Country/TerritoryGermany
CityBremen
Period23/02/1024/02/10

Keywords

  • Cramér-Rao bound
  • EM algorithm
  • MIMO channel estimation
  • Quantization
  • Stochastic resonance
  • TOA/DOA estimation

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