A Robust Autofocusing Approach for Estimating Directions-of-Arrival of Wideband Signals
By
GONG Bing
XU Yi-tao
LI Jia
LIU Zhong-jun
DOI: https://doi.org/10.5815/ijwmt.2012.04.05, Pub. Date: 15 Aug. 2012
In this paper, we introduce a robust method for wideband DOA estimation which does not require any preliminary DOA estimation or calibration of the array during the whole estimating process with the performance similar to the autofocusing approach. Our method is based on the autofocusing approach and uses the ESPRIT algorithm during the narrowband processing stage. Meanwhile, we suggest the method of selecting the best focusing frequency which minimizes the mean square error.
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