Skip to Main content Skip to Navigation
Conference papers

Third order widely non-linear Volterra MVDR beamforming

Abstract : It is now well known that time invariant (TI) linear beamformers, such as the Capon's beamformer, are only optimal for stationary Gaussian observations whose complex envelope is necessarily second order (SO) circular. However in many applications such as in radiocommunications, most of the signals are nonGaussian and their complex envelope presents very often some SO and/or higher order (HO) non circularity properties. For this reason we propose in this paper a third order widely non linear Volterra minimum variance distortionnless response (MVDR) beamformer taking into account both the potential non Gaussian character and the potential HO non circularity (up to sixth order) of interferences. Some properties, performance and adaptive implementation of this new beamformer are presented in the paper. Illustrations shows the great interest, with respect to the existing beamformers, of this new beamformer for non Gaussian and HO non circular interferences, omnipresent in practice.
Document type :
Conference papers
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-01126072
Contributor : Laboratoire Cedric <>
Submitted on : Wednesday, December 16, 2020 - 6:23:48 PM
Last modification on : Saturday, January 16, 2021 - 3:20:10 AM
Long-term archiving on: : Wednesday, March 17, 2021 - 8:04:36 PM

File

paper2.pdf
Files produced by the author(s)

Identifiers

Citation

Pascal Chevalier, Abdelkader Oukaci, Jean-Pierre Delmas. Third order widely non-linear Volterra MVDR beamforming. International Conference on acoustic Speech and Signal Processing (ICASSP), May 2011, Prague, Czech Republic. pp.2648-2651, ⟨10.1109/ICASSP.2011.5947029⟩. ⟨hal-01126072⟩

Share

Metrics

Record views

87

Files downloads

6