Title
Blind wideband spatio-temporal filtering based on higher-order cyclostationarity properties
Abstract
In this paper, a new method for blind minimum mean-square error (MMSE) spatio-temporal signal filtering is proposed. To obtain a blind version of the MMSE filter, the proposed method utilizes the signal selectivity property of the higher order cyclostationary statistics (HOCS) exhibited by the signal of interest. An accurate estimate of the transfer function of the MMSE filter is obtained also in the presence of strong frequency-overlapped interfering signals, which would render standard stationarity-based techniques ineffective. The method is useful when the desired signal cannot be accurately extracted by exploiting its second-order cyclostationarity properties because they are too weak and/or they are shared by the interference and noise signals as well. The performance analysis, which is carried out by computer simulations in the case of quadrature amplitude modulated (QAM)-modulated signals with partially overlapping bands, substantiates the effectiveness of the proposed method.
Year
DOI
Venue
2005
10.1109/TSP.2005.843733
IEEE Transactions on Signal Processing
Keywords
Field
DocType
higher-order cyclostationarity property,accurate estimate,spatio-temporal signal,modulated signal,transfer functions,blind wideband spatio-temporal,cyclostationary signals,mmse filter,array signal processing,least mean squares methods,higher order statistics,blind wideband spatio-temporal filtering,quadrature amplitude modulation,blind minimum mean-square error,filtering theory,signal extraction,computer simulation,signal selectivity property,new method,spatio-temporal filtering,blind version,higher order,filtering,amplitude modulation,interference,second order
Signal processing,Quadrature amplitude modulation,Control theory,QAM,Higher-order statistics,Algorithm,Filter (signal processing),Speech recognition,Interference (wave propagation),Amplitude modulation,Cyclostationary process,Mathematics
Journal
Volume
Issue
ISSN
53
4
1053-587X
ISBN
Citations 
PageRank 
0-7803-7041-4
5
0.47
References 
Authors
12
3
Name
Order
Citations
PageRank
G. Gelli121415.91
Davide Mattera219935.08
Luigi Paura3106676.14