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Exploiting arrays with multiple invariances using MUSIC and MODE
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0002-6855-5868
2001 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 49, no 11, 2511-2521 p.Article in journal (Refereed) Published
Abstract [en]

This paper describes several new techniques for direction of arrival (DOA) estimation using arrays composed of multiple translated and uncalibrated subarrays. The new algorithms can be thought of as generalizations of the MUSIC, Root-MUSIC, and MODE techniques originally developed for fully calibrated arrays. The advantage of these new approaches is that the DOAs can be estimated using either a simple one-dimensional (I-D) search or by rooting a polynomial, as opposed to the multidimensional search required by multiple invariance (MI)-ESPRIT. When it can be applied, the proposed MI-MODE algorithm shares the statistical optimality of MI-ESPRIT. While MI-MUSIC and Root-MI-MUSIC are only optimal for uncorrelated sources, they perform better than a single invariance implementation of ESPRIT and are thus better suited for finding the initial conditions required by the MI-ESPRIT search.

Place, publisher, year, edition, pages
2001. Vol. 49, no 11, 2511-2521 p.
Keyword [en]
antenna arrays, array signal processing, direction-of-arrival estimation, spectral analysis, of-arrival estimation, 2-d angle estimation, maximum-likelihood, root-music, esprit, azimuth, performance, hydrophones, space
Identifiers
URN: urn:nbn:se:kth:diva-21049DOI: 10.1109/78.960398ISI: 000171785700006OAI: oai:DiVA.org:kth-21049DiVA: diva2:339746
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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