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CramÉr-rao Bound for DOA Estimators under the Partial Relaxation Framework
Technische Universität Darmstadt, DEU.
Blekinge Institute of Technology, Management Team.ORCID iD: 0000-0003-1549-419x
Technische Universität Darmstadt, DEU.
2019 (English)In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Institute of Electrical and Electronics Engineers Inc. , 2019, p. 4469-4473Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, the Cramér-Rao Bound for the Direction-ofArrival parameter under the partial relaxation framework is derived. We introduce a non-redundant parameterization of the signal model corresponding to the partial relaxation framework, in which the array structure in part of the steering matrix is neglected while the rank of the relaxed steering matrix is maintained. We prove that the stochastic Cramér-Rao Bound for the Direction-of-Arrival parameter under the partial relaxation signal model is lower-bounded by that of the conventional stochastic Cramér-Rao Bound. Furthermore, we prove that the partial relaxation estimator for the Weighted Subspace Fitting criterion asymptotically achieves the conventional Cramér-Rao Bound in the case of uncorrelated source signals. © 2019 IEEE.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc. , 2019. p. 4469-4473
Keywords [en]
Cramér-Rao Bound, DOA Estimation, Meansquared Error., Non-redundant Parameterization, Partial Relaxation
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-18606DOI: 10.1109/ICASSP.2019.8682980Scopus ID: 2-s2.0-85068967787ISBN: 9781479981311 (print)OAI: oai:DiVA.org:bth-18606DiVA, id: diva2:1349794
Conference
44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP, Brighton, 12 May 2019 through 17 May 2019
Available from: 2019-09-10 Created: 2019-09-10 Last updated: 2019-09-20Bibliographically approved

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Viberg, Mats

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf