TY - GEN
T1 - Polarization sensitive PARAFAC beamforming for near-field/far-field signals using co-centered orthogonal loop and dipole pairs
AU - Xu, Yougen
AU - Ma, Jingyan
AU - Liu, Zhiwen
PY - 2013
Y1 - 2013
N2 - A parallel factor analysis (PARAFAC) based beamformer using a polarization sensitive array of co-centered orthogonal loop and dipole (COLD) vector antennas is proposed for near-field or far-field source signals. While joint suppression of the interferences in the direction, polarization, and range domains is achieved, the beamformer needs only one of the following source knowledge (maybe inaccurate) about signal of interest (SOI): direction, polarization, and range. The beamformer is robust to the error in the sample estimates of SOI steering vector and array covariance matrix via eigenvalue smoothing regularization. A minimum mean squared error criterion for choosing adaptively the regulari-zation factor in eigenvalue smoothing is also presented for noncircular SOI. Simulation results are included to illustrate the performance of the proposed beamformer.
AB - A parallel factor analysis (PARAFAC) based beamformer using a polarization sensitive array of co-centered orthogonal loop and dipole (COLD) vector antennas is proposed for near-field or far-field source signals. While joint suppression of the interferences in the direction, polarization, and range domains is achieved, the beamformer needs only one of the following source knowledge (maybe inaccurate) about signal of interest (SOI): direction, polarization, and range. The beamformer is robust to the error in the sample estimates of SOI steering vector and array covariance matrix via eigenvalue smoothing regularization. A minimum mean squared error criterion for choosing adaptively the regulari-zation factor in eigenvalue smoothing is also presented for noncircular SOI. Simulation results are included to illustrate the performance of the proposed beamformer.
KW - Array signal processing
KW - COLD vector antenna
KW - near-field
KW - noncircular
KW - polarization sensitive array
UR - http://www.scopus.com/inward/record.url?scp=84889589995&partnerID=8YFLogxK
U2 - 10.1109/ChinaSIP.2013.6625415
DO - 10.1109/ChinaSIP.2013.6625415
M3 - Conference contribution
AN - SCOPUS:84889589995
SN - 9781479910434
T3 - 2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013 - Proceedings
SP - 616
EP - 620
BT - 2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013 - Proceedings
T2 - 2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013
Y2 - 6 July 2013 through 10 July 2013
ER -