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Source Localization in the Presence of Model Uncertainties
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Royal Institute of Technology, Sweden.
Royal Institute of Technology, Sweden.
1992 (English)In: Proceedings of the 2nd Workshop on Adaptive Algorithms in Communications, 1992Conference paper, Published paper (Refereed)
Abstract [en]

In many signal processing applications high accuracy signal parameter estimation from sensor array data is a significant problem. Much of the recent work in array processing has focused on methods for high-resolution location estimation. Model based estimation techniques requre accurate knowledge of the so-called array manifold. In practise, the array response is often determined by measuring the array response when only one emitter is radiating and the signal parameters of which are allowed to vary in a known way. This paper addresses some of the practical issues that arise in generating the so-called array manifold from a finite collection of caibration vectors. For high-resolution signal parameter estimation techniques to be successful, the interpolated array manifold has to satisfy certain smoothness conditions. A paradigm for generating an array model from noise corrupted calibration vectors is developed. The key idea is to use a local parametric model of the sensor responses. The potential improvement using the suggested scheme rather than an ideal array model is demonstrated on real data collected from a full-scale hydro-acoustic array.

Place, publisher, year, edition, pages
1992.
Keyword [en]
Signal processing, Parameter estimation, Sensor array data, Calibration vectors, Interpolation
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-91122OAI: oai:DiVA.org:liu-91122DiVA: diva2:618449
Conference
2nd Workshop on Adaptive Algorithms in Communications, Bordeaux, France October, 1992
Available from: 2013-04-28 Created: 2013-04-17 Last updated: 2013-04-28

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Citation style
  • apa
  • harvard1
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  • de-DE
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  • nn-NB
  • sv-SE
  • Other locale
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Output format
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  • asciidoc
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