TY - GEN
T1 - Blind beamforming for rectilinear signals
AU - Xu, Yougen
AU - Liu, Zhiwen
AU - Yuan, Shaolin
AU - Gou, Xiaoming
PY - 2011
Y1 - 2011
N2 - Automatic beamforming for noncircular signals with distinct noncircularity-rates can be achieved via Takagi factorization based on the second-order statistics. However, the requirement on noncircularity-rate diversity can not be satisfied by rectilinear signals (e.g., AM and BPSK signals), which are used in many practical communications systems. A mixed-order Takagi factorization scheme is herein proposed to handle coexisted rectilinear signals, wherein the fourth-order statistics is used for adjusting virtually the noncircularity-rates of signals, while the second-order statistics is utilized for blind identification. Numerical examples are also included to illustrate the performance of the proposed beamformer.
AB - Automatic beamforming for noncircular signals with distinct noncircularity-rates can be achieved via Takagi factorization based on the second-order statistics. However, the requirement on noncircularity-rate diversity can not be satisfied by rectilinear signals (e.g., AM and BPSK signals), which are used in many practical communications systems. A mixed-order Takagi factorization scheme is herein proposed to handle coexisted rectilinear signals, wherein the fourth-order statistics is used for adjusting virtually the noncircularity-rates of signals, while the second-order statistics is utilized for blind identification. Numerical examples are also included to illustrate the performance of the proposed beamformer.
KW - Array signal processing
KW - adaptive arrays
KW - beam-forming
UR - https://www.scopus.com/pages/publications/84863352652
U2 - 10.1109/MAPE.2011.6156289
DO - 10.1109/MAPE.2011.6156289
M3 - Conference contribution
AN - SCOPUS:84863352652
SN - 9781424482665
T3 - Proceedings - 2011 4th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE 2011
SP - 416
EP - 419
BT - Proceedings - 2011 4th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE 2011
T2 - 2011 4th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE 2011
Y2 - 1 November 2011 through 3 November 2011
ER -