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Communication Dans Un Congrès Année : 2013

CRB analysis of near-field source localization using uniform circular arrays

Résumé

This paper is devoted to the Cramer Rao bound (CRB) on the azimuth, elevation and range of a narrow-band near-field source localized by means of a uniform circular array (UCA), using the exact expression of the time delay parameter. After proving that the conditional and unconditional CRB are generally proportional for constant modulus steering vectors, we specify conditions of isotropy w.r.t. the distance and the number of sensors. Then we derive very simple, yet very accurate non-matrix closed-form expressions of different approximations of the CRBs
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Dates et versions

hal-01277795 , version 1 (16-12-2020)

Identifiants

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Jean-Pierre Delmas, Houcem Gazzah. CRB analysis of near-field source localization using uniform circular arrays. ICASSP 2013 : 38th IEEE International Conference on Acoustics, Speech and Signal Processing, May 2013, Vancouver, Canada. pp.3996 - 4000, ⟨10.1109/ICASSP.2013.6638409⟩. ⟨hal-01277795⟩
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