TY - GEN
T1 - Generalized matched filter detector for fast fading channels
AU - Romero, Daniel
AU - López-Valcarce, Roberto
AU - Leus, Geert
PY - 2012/10/23
Y1 - 2012/10/23
N2 - We consider the problem of detecting a known signal with constant magnitude immersed in noise of unknown variance, when the propagation channel is frequency-flat and randomly time-varying within the observation window. A Basis Expansion Model with random coefficients is used for the channel, and a Generalized Likelihood Ratio approach is adopted in order to cope with deterministic nuisance parameters. The resulting scheme can be seen as a generalization of the wellknown Matched Filter detector, to which it reduces for time-invariant channels. Closed-form analytical expressions are provided for the distribution of the test statistic under both hypotheses, which allow to assess the detection performance.
AB - We consider the problem of detecting a known signal with constant magnitude immersed in noise of unknown variance, when the propagation channel is frequency-flat and randomly time-varying within the observation window. A Basis Expansion Model with random coefficients is used for the channel, and a Generalized Likelihood Ratio approach is adopted in order to cope with deterministic nuisance parameters. The resulting scheme can be seen as a generalization of the wellknown Matched Filter detector, to which it reduces for time-invariant channels. Closed-form analytical expressions are provided for the distribution of the test statistic under both hypotheses, which allow to assess the detection performance.
KW - Flat fading channels
KW - Generalized Likelihood Ratio
KW - Matched Filter
KW - detection
UR - http://www.scopus.com/inward/record.url?scp=84867609321&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84867609321&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2012.6288587
DO - 10.1109/ICASSP.2012.6288587
M3 - Conference contribution
AN - SCOPUS:84867609321
SN - 9781467300469
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 3165
EP - 3168
BT - 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2012 - Proceedings
T2 - 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2012
Y2 - 25 March 2012 through 30 March 2012
ER -