Degradation of Covariance Reconstruction-Based Adaptive Beamformers

Samuel Somasundaram; Andreas Jakobsson

Degradation of Covariance Reconstruction-Based Adaptive Beamformers

Forskningsoutput: Konferensbidrag › Konferenspaper, ej i proceeding/ej förlagsutgivet › Peer review

178 Nedladdningar (Pure)

Sammanfattning

We show that recent robust adaptive beamformers,
based on reconstructing either the noise-plus-interference or
the data covariance matrices, are sensitive to the noise-plus-
interference structure and degrade in the typical case when
interferer steering vector mismatch exists, often performing much
worse than common diagonally loaded sample covariance matrix
based approaches, even when signal-of-interest steering vector
mismatch is absent.

Originalspråk	engelska
Antal sidor	5
Status	Published - 2014
Evenemang	Sensor Signal Processing for Defense - SSPD Conference 2014 - Edinburgh, Storbritannien Varaktighet: 2014 sep. 8 → 2014 sep. 9

Konferens

Konferens	Sensor Signal Processing for Defense - SSPD Conference 2014
Land/Territorium	Storbritannien
Ort	Edinburgh
Period	2014/09/08 → 2014/09/09

Ämnesklassifikation (UKÄ)

Sannolikhetsteori och statistik

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SomasundaramJ14

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@conference{062e0ffa85de4d9fa1b8a80892ff0d5a,

title = "Degradation of Covariance Reconstruction-Based Adaptive Beamformers",

abstract = "We show that recent robust adaptive beamformers, based on reconstructing either the noise-plus-interference or the data covariance matrices, are sensitive to the noise-plus- interference structure and degrade in the typical case when interferer steering vector mismatch exists, often performing much worse than common diagonally loaded sample covariance matrix based approaches, even when signal-of-interest steering vector mismatch is absent.",

author = "Samuel Somasundaram and Andreas Jakobsson",

year = "2014",

language = "English",

note = "Sensor Signal Processing for Defense - SSPD Conference 2014 ; Conference date: 08-09-2014 Through 09-09-2014",

}

TY - CONF

T1 - Degradation of Covariance Reconstruction-Based Adaptive Beamformers

AU - Somasundaram, Samuel

AU - Jakobsson, Andreas

PY - 2014

Y1 - 2014

N2 - We show that recent robust adaptive beamformers, based on reconstructing either the noise-plus-interference or the data covariance matrices, are sensitive to the noise-plus- interference structure and degrade in the typical case when interferer steering vector mismatch exists, often performing much worse than common diagonally loaded sample covariance matrix based approaches, even when signal-of-interest steering vector mismatch is absent.

AB - We show that recent robust adaptive beamformers, based on reconstructing either the noise-plus-interference or the data covariance matrices, are sensitive to the noise-plus- interference structure and degrade in the typical case when interferer steering vector mismatch exists, often performing much worse than common diagonally loaded sample covariance matrix based approaches, even when signal-of-interest steering vector mismatch is absent.

M3 - Paper, not in proceeding

T2 - Sensor Signal Processing for Defense - SSPD Conference 2014

Y2 - 8 September 2014 through 9 September 2014

ER -

Degradation of Covariance Reconstruction-Based Adaptive Beamformers

Sammanfattning

Konferens

Ämnesklassifikation (UKÄ)

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