Title :
Robust wideband beamforming
Author :
Hu, Zhen ; Guo, Nan ; Qiu, Robert ; Bonior, Jason ; Liou, Lihyeh ; Lin, David ; Longbrake, Matthew ; Buxa, Peter ; Dalrymple, Thomas ; Hary, Stephen ; Tsui, James
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Tech Univ., Cookeville, TN, USA
Abstract :
Robust wideband beamforming with a real-time array testbed will be studied in this paper. For the practical consideration of uncertainty, channel impulse responses or channel transform functions of RF chains can not be obtained exactly due to the limitation of sounding and calibration procedure. Thus robust optimization will be applied to wideband beamforming. It is assumed that the uncertainty will be bounded and the worst case performance can be guaranteed by robust optimization. Finally, the optimal coefficients for a 2-dimensional filter bank to perform wideband beamforming will obtained.
Keywords :
array signal processing; calibration; channel bank filters; optimisation; wireless channels; 2-dimensional filter bank; calibration; channel impulse response; channel transform function; optimization; real-time array testbed; robust wideband beamforming; Array signal processing; Arrays; Optimization; Robustness; Transfer functions; Uncertainty; Wideband; SDP; filter bank; robust optimization; steering vector; wideband beamforming;
Conference_Titel :
Aerospace and Electronics Conference (NAECON), Proceedings of the IEEE 2010 National
Conference_Location :
Fairborn, OH
Print_ISBN :
978-1-4244-6576-7
DOI :
10.1109/NAECON.2010.5712925
