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Direction finding for an extended target with possibly non-symmetric spatial spectrum

Monakov, Andrei and Besson, Olivier Direction finding for an extended target with possibly non-symmetric spatial spectrum. (2004) IEEE Transactions on Signal Processing, vol. 5 (n° 1). pp. 283-287. ISSN 1053-587X

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Official URL: http://dx.doi.org/10.1109/TSP.2003.819982

Abstract

We consider the problem of estimating the direction of arrival (DOA) of an extended target in radar array processing. Two algorithms are proposed that do not assume that the power azimuthal distribution of the scatterers is symmetric with respect to the mass center of the target. The first one is based on spectral moments which are easily related to the target’s DOA. The second method stems from a previous paper by the present authors and consists of a least-squares fit on the elements of the covariance matrix. Both methods are simple and are shown to provide accurate estimates. Furthermore, they extend the range of unambiguous DOAs that can be estimated, compared with the same previous paper.

Item Type:Article
Additional Information:Thanks to the Institute of Electrical and Electronics Engineers (IEEE). The original PDF can be found on the IEEE website: http://ieeexplore.ieee.org/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Saint Petersburg State University of Aerospace Instrumentation - SUAI (RUSSIA)
Laboratory name:
Département d'Electronique, Optronique et Signal - DEOS (Toulouse, France) - Signal, Communication, Antenne et Navigation - SCAN
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Deposited By: Olivier Besson

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