A novel autofocusing approach for estimating directions-of-arrival of wideband signals

Authors:
Piya Pal;P. P. Vaidyanathan
Affiliations:
Dept. of Electrical Engineering, California Institute of Technology, Pasadena, CA;Dept. of Electrical Engineering, California Institute of Technology, Pasadena, CA
Venue:
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Year:
2009

Citing 2
Cited 0

WAVES: weighted average of signal subspaces for robust widebanddirection finding

IEEE Transactions on Signal Processing
TOPS: new DOA estimator for wideband signals

IEEE Transactions on Signal Processing - Part I

Quantified Score

Hi-index	0.00

Visualization

Abstract

We propose a novel approach to the design of focusing matrices which play important role in the coherent methods for wideband direction-of-arrival estimation. We call this 'autofocusing' because unlike the conventional methods, our technique constructs the focusing matrices entirely by processing the received signal and does not require any preliminary DOA estimates. In this way, it overcomes the major drawback of the coherent methods which otherwise possess many desirable properties. Through computer simulations, the proposed method is found to exhibit satisfactory performance in comparison to the existing wideband DOA estimation algorithms.