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Estimation of coherent source bearings using variational techniques

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Abstract

We study the problem of bearing estimation in the case of coherent signal sources with the use of variational techniques for minimizing the target function defined on the basis of the ℓp norm. A regularization technique similar to projection onto a signal subspace of given dimension is proposed. The numerical calculation of the bearing estimate variance and its comparison with the maximum-likelihood estimate variance as well as with the Cramer-Rao bound (CRB) are given.

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Authors and Affiliations

  1. Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia

    V. I. Turchin, G. E. Fiks & I. Sh. Fiks

Authors
  1. V. I. Turchin
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  2. G. E. Fiks
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  3. I. Sh. Fiks
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 50, No. 3, pp. 265–273, March 2007.

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Turchin, V.I., Fiks, G.E. & Fiks, I.S. Estimation of coherent source bearings using variational techniques. Radiophys Quantum Electron 50, 244–251 (2007). https://doi.org/10.1007/s11141-007-0021-0

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  • DOI: https://doi.org/10.1007/s11141-007-0021-0

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