ICASSP 2016, 41st IEEE International Conference on Acoustics, Speech and Signal Processing, 20-25 March 2016, Shangai, China
A natural extension of the ”Spatial” smoothing preprocessing technique is presented and analysed. It is well known that subspace methods do not work properly in the
presence of coherent sources. In this paper, a ”Spatio-Frequential” smoothing technique is described when the transmit OFDM symbol is received through multiple coherent
signals using a uniform linear antenna array. After this preprocessing technique, one could efficiently apply any 2-dimensional subspace method to jointly estimate the angles
and times of arrival of the incoming coherent signals. Simulation results demonstrate the potential of the proposed 2D smoothing method over existing separate spatial or
frequential smoothing techniques.
Poster / Demo
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