TY - JOUR
T1 - Non-circularity coefficient estimation of the SOI for narrowband widely linear beamforming
AU - Xu, Yougen
AU - Huang, Yulin
AU - Liu, Junfeng
AU - Liu, Zhiwen
N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2019.
PY - 2019/4/17
Y1 - 2019/4/17
N2 - In widely linear beamforming, the second-order non-circularity property exhibited by the signal-of-interest (SOI) can be exploited to improve interference and noise suppression. Assuming known SOI steering vector and spatially white noise, several algebraic schemes for estimating the SOI non-circularity coefficient are proposed in the context of narrowband widely linear beamforming without training/reference signal. These new estimators are based on signal purification, pseudoinverse, oblique projection, and pre-processed subspace separation. Simulation results are included to illustrate the performances of the proposed methods.
AB - In widely linear beamforming, the second-order non-circularity property exhibited by the signal-of-interest (SOI) can be exploited to improve interference and noise suppression. Assuming known SOI steering vector and spatially white noise, several algebraic schemes for estimating the SOI non-circularity coefficient are proposed in the context of narrowband widely linear beamforming without training/reference signal. These new estimators are based on signal purification, pseudoinverse, oblique projection, and pre-processed subspace separation. Simulation results are included to illustrate the performances of the proposed methods.
UR - https://www.scopus.com/pages/publications/85064211489
U2 - 10.1049/iet-map.2018.5612
DO - 10.1049/iet-map.2018.5612
M3 - Article
AN - SCOPUS:85064211489
SN - 1751-8725
VL - 13
SP - 649
EP - 659
JO - IET Microwaves, Antennas and Propagation
JF - IET Microwaves, Antennas and Propagation
IS - 5
ER -