Title :
An Adaptive Beamforming Scheme for Enhanced Cochannel Interference Mitigation on Short Array Signal Intervals
Author :
Hunziker, Thomas ; Taromaru, Makoto
Author_Institution :
ATR Wave Eng. Lab., Kyoto
Abstract :
The problem of mitigating Gaussian cochannel interference with unknown spatial correlation within short array signal observation intervals is addressed in this paper. We show that the classic sample matrix inversion schemes can be represented as the projection of the ideally combined signal onto a subspace that is uniformly distributed on the Grassmann manifold. This brings us to a novel beamforming scheme with enhanced mean-square error performance
Keywords :
Gaussian channels; array signal processing; cochannel interference; interference suppression; matrix inversion; mean square error methods; Gaussian cochannel interference; Grassmann manifold; adaptive beamforming scheme; enhanced cochannel interference mitigation; enhanced mean-square error performance; matrix inversion schemes; short array signal observation intervals; unknown spatial correlation; Adaptive arrays; Array signal processing; Cities and towns; Covariance matrix; Interchannel interference; Laboratories; Radiofrequency interference; Receivers; Receiving antennas; Wireless networks;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1661146
