TY - GEN
T1 - Performance analysis of krylov space adaptive beamformers
AU - Kirsteins, Ivars P.
AU - Ge, Hongya
PY - 2006
Y1 - 2006
N2 - The performance of Krylov subspace-based dimensionality reduction for adaptive beamforming is analyzed using a simple second-order Taylor series approximation to the mean output signal-to-noise ratio (SNR). It is shown that the predicted SNRs accurately follow the experimentally measured SNR and explain the threshold effects when the angles or spacing are varied between the signal mode (subspace) and interference modes (subspace). Furthermore, we discuss how the SNR approximation can be applied to calculating the deflection of a Krylov subspace dimension-reduced Capon's test statistic.
AB - The performance of Krylov subspace-based dimensionality reduction for adaptive beamforming is analyzed using a simple second-order Taylor series approximation to the mean output signal-to-noise ratio (SNR). It is shown that the predicted SNRs accurately follow the experimentally measured SNR and explain the threshold effects when the angles or spacing are varied between the signal mode (subspace) and interference modes (subspace). Furthermore, we discuss how the SNR approximation can be applied to calculating the deflection of a Krylov subspace dimension-reduced Capon's test statistic.
UR - http://www.scopus.com/inward/record.url?scp=34250761264&partnerID=8YFLogxK
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U2 - 10.1109/SAM.2006.1677148
DO - 10.1109/SAM.2006.1677148
M3 - Conference contribution
AN - SCOPUS:34250761264
SN - 1424403081
SN - 9781424403080
T3 - 2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
SP - 16
EP - 20
BT - 2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
T2 - 4th IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
Y2 - 12 July 2006 through 14 July 2006
ER -