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An Instrumental Variable Approach to Array Processing in Spatially Correlated Noise Fields
Polytechnic Institute of Bucharest, Romania.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
1992 (English)In: Proceedings of the 1992 IEEE International Conference on Acoustics, Speech and Signal Processing, 1992, 421-424 vol.2 p.Conference paper, Published paper (Refereed)
Abstract [en]

Signal parameter estimation from sensor array data is of great interest in a variety of applications, including radar, sonar, and radio communication. A large number of high-resolution (i.e., model-based) techniques have been suggested in the literature. The vast majority of these require knowledge of the spatial noise correlation matrix, which constitutes a significant drawback. A novel instrumental variable (IV) approach to the sensor array problem is proposed. By exploiting temporal correlatedness of the source signals, knowledge of the spatial noise covariance is not required. The asymptotic properties of the IV estimator are examined, and an optimal IV method is derived. Simulations are presented examining the properties of the IV estimators in data segments of realistic lengths.

Place, publisher, year, edition, pages
1992. 421-424 vol.2 p.
Keyword [en]
Array signal processing, Noise, Parameter estimation, Simulation
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-91643DOI: 10.1109/ICASSP.1992.226030ISBN: 0-7803-0532-9 (print)OAI: oai:DiVA.org:liu-91643DiVA: diva2:625125
Conference
1992 IEEE International Conference on Acoustics, Speech and Signal Processing, San Francisco, CA, USA, March, 1992
Available from: 2013-06-04 Created: 2013-04-28 Last updated: 2013-07-29

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